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The advantages of fuel cells

The advantages of fuel cells

Fuel cell power generation compared with other unique advantages.

And high efficiency. Without fuel cell power generation from geothermal energy to mechanical energy again to the conversion process, there is no link in the middle of the energy loss. At present, thermal power or nuclear power is the highest efficiency of 40 percent, while the fuel cell power generation efficiency is generally 40% ~ 60%. High melting temperature carbonate and solid electrolyte type fuel cells, emissions of heat can also be used for the second generation. The use of waste heat for heating or combined together for power generation, fuel cell utilization efficiency up to 70% ~ 80%.

Flexibility. Fuel cell power generation device is composed of a number of basic units. A basic unit is a two folder electrolyte electrode plate. The basic unit will be assembled hundreds of them would constitute a battery pack, battery pack and then together to form a power station. Can be flexible depending on the needs of different size to the assembly of fuel cell power plant. The basic unit of fuel cell design standards can carry out large-scale pre-production, so the fuel cell power plant construction and low cost, short construction cycle. In addition, as a result of fuel-cell light weight, small size, high specific power, relatively easy to move up, so it is particularly suitable in remote areas or islands to build power stations, or build a distributed power plant.

Fuel diversity. Although the fuel cell hydrogen is mainly the work of the material, but it can be used for fuel gas, methanol, liquefied petroleum gas and other hydrocarbons. According to the actual situation, in line with local conditions to use a different fuel, or combination of different fuel use, can reach local materials, to save resources.

Pollution-free. The main product of fuel cells is water, essentially non-emission of harmful gases, it is a very clean source of energy. It is reported that a number of fuel cell emissions of harmful gases in the United States national standards for environmental protection by two orders of magnitude lower. In addition, the fuel cell is a stationary power generation, has no mechanical transmission device, only in the control system and other auxiliary devices have moving parts, thus it is the work of a small vibration, low noise.

Due to high cost of fuel cell, generating cost-effective as other methods do not, we can not get the promotion. Therefore, only the cost of significantly reduced and further enhance the service life, fuel cells will enhance their competitiveness. According to the U.S. departments of statistics, when the construction cost of 3 U.S. dollars per watt hours (1994 has reached), the fuel cell will be able to enter the market; when reduced to about 2 U.S. dollars, can be in remote areas as an independent power generating system; When reduced to about one U.S. dollars, the market will expand rapidly. 1 U.S. dollars to achieve this goal, it is necessary to the life of fuel cells will be increased to 40,000 hours.

The development of fuel cells is now very fast speed. In accordance with national plans, by 2000, Japan’s fuel cell power output will be close to 2200 megawatts, the United States will reach 500 megawatts in 2000, Europe will reach 500 ~ 900 MW. By 2010, the world’s total installed capacity of fuel cells will reach 60,000 MW. As a new type of fuel cell energy, is still relatively high cost, long life is not enough, power is still relatively small. However, with the depth of the research work, these problems will be solved. Many scientists believe that the era of knowledge economy in the 21st century, fuel cells will account for in the field of energy in a pivotal position, therefore, have the fourth-generation power technologies, research and development of fuel cells with the significance of the next century.

Dianchi Lake every year 100,000 tons of refuse what way
Dianchi Lake salvage garbage placed where it? Dianchi Lake every day along the flow of garbage to deal with the future, what will? This reporter visited the HKMA Kunming Yunnan, Kunming Environmental Protection Bureau, Kunming sanitation experts monitoring center after that, a massive clean-up campaign refuse Dianchi Lake basin has been fully launched in the next few days, but the inflow of garbage along the Dianchi Lake how to deal with, it is worth exploring one of the new problems.

Refuse disposal sites will be built lake

Kunming, Yunnan Province, according to the HKMA person in charge, the current agricultural non-point source pollution of Dianchi Lake pollution accounts for 40 percent, and 15 lake township agricultural population of about 700,000 people, an annual output of 100,000 tons solid waste per day about 280 tons. Collected as a result of the lack of lake township removal treatment systems, the main river into the lake and piles of refuse, garbage dumping in rural areas has become the main channel, garbage and sewage directly or indirectly discharged into Dianchi Lake.

To strengthen the management of garbage lake, early this month, the Government of Kunming Dianchi Lake basin has seven districts and counties, as well as municipal government departments to sign “comprehensive management of the target Dianchi responsibility”, 7 District Government and the township (street offices) signed responsibility and the responsibility to establish the risk of mortgage system objectives pc764 battery. 19, Chenggong County, first of all towns and districts have made the preparation of the 60 Board responsible to pay 120,000 gold Dianchi management responsibility to set an example, caused great shock in the county. Lake of the four districts and counties clear 15 township counties (districts) long and township (town) responsible for long as the first in 15 villages and towns to manage the establishment of Dianchi Lake, Lake area is responsible for the maintenance of cleaning the river, rural solid waste the work of removal and disposal of objects. Can not be completed on the responsibility of evaluation indicators, and will not be paid bonuses year-end appraisal, the risk of mortgage payment will also be turned over to the financial.

Followed by the district government, will be 15 in the lake township (street offices) to build agricultural solid waste disposal site 5, each village to build a refuse collection point 1-3 months to build about 700, with 32 removal trucks. These efforts will be completed this year, 1 / 3, complete next year.

Kunming landfill operation overload

Kunming Kunming sanitation and Environmental Protection Monitoring Center of the persons concerned that the current waste disposal area in Kunming City, particularly in the technology and cost, there are some insurmountable difficulties.

It is understood that the landfill, incineration power generation, high-temperature composting is now usually three kinds of waste, but all have their pros and cons of each approach. Landfill garbage is more of the principal means of its shortcomings is an area landfill, and the use of a short time (generally 10 years), high cost, especially in the treatment of landfill leachate has become a from all walks of life he could do nothing but pay close attention to the problem; and waste incineration power generation, it is characterized by a significant volume reduction through incineration to reduce the volume of garbage to make half or more, but the drawback is that the recoverable resources burned, releasing toxic gas, such as dioxins, mercury batteries, such as steam, and produce toxic and hazardous slag and dust; and high-temperature composting of organic need people to separate garbage and other refuse, and some analysts pointed out that it is actually relatively low efficiency, by sale and use of constraints inconvenience.

Monitoring Center, according to a sanitation engineer, the Kunming area currently two things landfill construction scale a total of more than 500, with a total investment of nearly 200 million, was designed daily capacity of 1500 tons, while the actual is overloaded, two each day, “eat,” 2300 tons solid waste, both in May 2001 into the use of the landfill site, originally expected useful life of 6 years to 3 years now time, has removed most of the space.

Dianchi who refuse disposal “bill”

For many years engaged in a senior engineer of environmental engineering calculations to press accounts, in theory, to deal with a ton of garbage to take up to 30 plurality, but far from fees and funding can not meet this requirement.

Landfill in the eastern suburbs as an example, 1300 tons of refuse daily, one-year deal with the cost of nearly 1,500 million, together with the financial allocations and charges may only reach over 200 million, making the landfill Kunming “stretched.” It is reported that the current waste disposal charges in Kunming still uses the old standard, government organizations and institutions to collect 60 per tonne, 20 Enterprise, residents 5 yuan per day, but the actual collection rate is very low, and the gap are in need of financial subsidies .

The Engineering pointed out that generally, to build a large landfill plant will take 1-2 billion, to build a large-scale take more than 20 million, and then told reporters he has a case in point: In May last year, hubbub of the units to be 3 to the joint venture was to invest 40 million U.S. dollars, to establish the first waste incineration power plant, but because of various reasons the project more than 1 year did not seem to have happened since 08k8192 battery. According to the senior engineers estimated that out of proportion to the input and the actual recovery may be one of the reasons why the project move forward.

Caohai Dianchi Lake Basin to watch women’s collections a year to 10 tons of garbage, the senior engineers are very worried about: “management of pollution in Dianchi Lake were his own, everyone must ask yourself what to do?”

posted by myblo001 on Jul 1, 2009 6:21 AM | 0 comments
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Special equipment sub-industry growth opportunity

Special equipment sub-industry growth opportunity

“Development of China’s electronic special equipment for the electronics and information industry to provide strong support,” This is the consensus of the industry. However, China’s electronic special equipment manufacturing industry is still very small scale, can not meet domestic demand.

According to statistics, in 2003 China’s electronic special equipment sales revenue was 34.2 billion yuan, accounting for only the electronic information product manufacturing sector by 0.2%, while international electronic equipment in the electronic information industry, the proportion of about 5% ~ 10%. Domestic electronics enterprises grasp of China’s electronic information industry brought about by the rapid development of the opportunity, to extend the product line, expand equipment services, has become the focus of widespread concern.

Semiconductor Equipment extend to other areas of batteries

According to market research firm statistics, in 2003 the semiconductor equipment market in China reached 1.7 billion U.S. dollars, accounting for global market sales of 5.2%. More to industry estimates, the next 10 years, China’s semiconductor and IC equipment market will be more than 20 billion U.S. dollars. However, the rapid development of China’s semiconductor and integrated circuit industries as compared to domestic semiconductor equipment manufacturing industry is relatively slow development of the new 6-inch, 8-inch IC factories are almost all imported equipment from abroad, whether in technical or in the capital are constraining the development of China’s IC industry. To this end, the industry’s authoritative source, the semiconductor integrated circuit device companies in China should go step-by-step: by the year 2010, our part of the mainstream production line to achieve the commercialization of key equipment; through external cooperation, will have the advantage of a small amount of the industrialization of the products; actively develop FPD , MEMS, batteries and other electronic equipment production lines based on products used in semiconductor devices. This is for the domestic semiconductor equipment business provides a broad market.

At the same time, industry experts said that by 2020, following the next-generation 45-nanometer lithography machines will be there. Half of the next generation lithography technology is new, even if engaged in the original production lithography machine is the new foreign companies, therefore, when the domestic enterprises and foreign companies almost on the same starting line, the difference is not great. The 18 nanometer technology in 2018 will be launched in the domestic equipment companies do have a chance.

In addition, the semiconductor devices in a wide range of applications in other fields, as well as domestic equipment manufacturers opportunities. According to the Ministry of Information Industry Electronic Information Products Management Division Wang Bo China, the foundation of electronic products to small and micro-oriented development, semiconductor device has been increasingly applied to the LED (including semiconductor lighting), TFT-LCD, PDP, MEMS , VFD, in areas such as solar cells.

Figures show that the global LED next 5 years for 20% annual growth rate from 2004 to 3200 million U.S. dollars in 2008 increased to 5.6 billion U.S. dollars, while China’s LED market grew 30%, LPE / VPE / MOCVD, and many other semiconductor devices will be useless. Although there is a nurturing process of the market, but the lighting project at the country’s support, should have good prospects.

2003 global LCD TV sales reached 35.7 billion U.S. dollars, will reach 47 billion U.S. dollars this year, the next 4 years an area of 10 inches and larger LCD panels to expand production capacity of 4 times, the output will be 9.6 million this year to grow to 2008 3980 10,000, almost all production equipment of semiconductor devices; the global OLED market in 2003 was 263 million U.S. dollars, by 2008 will grow to 3.4 billion U.S. dollars, including equipment used in lithography, etching machines, absorbed significant equipment; MEMS industry average annual growth rate of more than 20%, in 2003 the global production value of more than 9 billion U.S. dollars, the need for lithography equipment mainly machines, etching machines, binding equipment. Domestic equipment manufacturers can develop new markets in these areas.

In addition, MOVCD, PECVD and other equipment should also be used in the battery industry well in 2003, CRE Qixing battery production equipment in short supply in this area describes the business of domestic equipment is worth to try.

SMT equipment starting from the lead-free

In 2003, the rapid development of electronic information industry, led by the application of China’s SMT has been further enhanced, the total imports of Taiwan SMT 7648, total imports amounted to 1.091 billion U.S. dollars, showing China’s market demand for STM large equipment.

Wuhan Fiberhome Systems Technology Co., Ltd. Xian Fei SMT engineers told reporters in the field of SMT, the current domestic enterprises in the software can also be hardware from foreign companies is also very different in terms of a change in the short term it is very difficult, but from domestic enterprises simple broken small SMT devices, such as reflow, printers and so on.

Electronic equipment in China Gold Association, the Secretary-General told reporters Cunzhong that lead-free SMT toshiba tecra a7 battery equipment is the equipment companies are facing a new opportunity, domestic enterprises must seize this opportunity and of great importance to lead-free research and development equipment.

Wang Bo-hua said that on the surface mount device, the lead with a two-tier significance: one is that the equipment itself does not lead-free components and processing technology, and the second is used to adapt to the user’s request for lead-free production lines the use of surface mount equipment. From the printing equipment, reflow equipment, wave soldering equipment to a variety of optical inspection equipment, from the use of lead solder to lead-free solder used, due to the different chemical composition, for the equipment industry will inevitably bring new challenges, in terms of software or from the hardware side, the equipment will add a new degree of difficulty. At present, Shenzhen and Shenzhen Jin East Billiton has already made considerable achievements. Other equipment for the domestic enterprises to enter the basis in the field.

Chip manufacturing equipment components concern

With the electronic machine to short, small, light, thin direction gradually speeding up the pace of development and China’s mobile phone, PC, DVD and other electronic products for the growing market, driven components of chip demand. It is understood that in 2002 global production of chip components 1 trillion next year will reach 1.5 trillion by 2010 will reach 2.5 trillion. Figures indicate that the “Eleventh Five-Year” period, the world needs at least 150 chip components production lines, nearly 150 million investment in equipment.

According to experts, at present, the production of components of our equipment, but the production of chip components is not more than business. In future, the traditional components of the amount will be less and less, on-chip components will be increasing demand, this is an opportunity for business equipment. In addition, the automotive electronics industry as a result of the rapid development of sensor devices should also be a hot business equipment.

All workers successfully developed large second-generation Chinese-made electric vehicles

An electric charge can travel more than 150 kilometers, a major independent research and work in China next month, the second generation of electric vehicles will be “offline.” It is reported that this technology is a leader in China.

In Hefei University of Technology School of Mechanical and engineering laboratory, this reporter witnessed the electric car face, the whole body is very modern, style, advanced facilities in the car, air-conditioning, self-reproducing apparatus.

The Institute of vehicles and traffic engineering, said Dr. Zhang Bingli, this electric vehicle is the first generation of electric vehicles based on technology, improved by the development and production, the biggest feature of the battery is a nickel-metal hydride used in weight than before to reduce the number of , only 20 kg Motor capacity also increased, an electric charge can travel about 150 km. Dr. Zhang said that this kind of mileage, fully able to meet the city people usually travel in the city dell latitude d620 battery, if we can reach 250 km mileage, can be used as a taxi.

According to the briefing, the second generation of electric vehicles in large quantities from the production and delivery of the vehicle market will probably take some time.

posted by myblo001 on Jul 1, 2009 6:16 AM | 0 comments
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Bottleneck in computer & notebook batteries

Bottleneck in computer & notebook batteries

With the progress of the notebook computer technology, From a mobile office concept has already become a reality. In order to meet the needs of mobile and mainstream manufacturers are introducing more powerful, more stable system of ultra-thin notebooks. Used for this ultra-thin battery, but because of the lack of electricity has become a new bottleneck in mobile office. And, in addition to persistent power, the battery is very expensive prices, and a piece of notebook batteries accounted for 10% of the overall price -15%, then an ultra-thin laptop battery should have the characteristics of what it mobile office to meet the demand? From the practical point of view we may wish to analyze the design of laptop battery standard.

Industry experts believe that time is of the battery. Ultra-thin notebook computers because of the thin body makes room for the installation of the battery becomes more limited, and the battery means to reduce the volume of the power supply even shorter time, not every ultra-thin notebook computers can be up to standard the battery life. At present, a common ultra-thin notebook battery time between 2-3 hours, a good brand can be achieved for about four hours, there are higher, such as NECS820 will be able to provide electricity five hours time, and if equipped with backup battery, the life of up to 11.8 hours. Moreover, the computer which is designed to extend the battery very thin flat-shaped, and its size and the fuselage in line with the expansion of the bottom of the chassis battery integrated with the fuselage, and fully maintained the smooth state of the fuselage.

However, even the best batteries, its power can not be unlimited, and the total time spent, and a charge can be completed in the shortest possible time that the battery may be the user’s mobile office to offer as much convenience and efficiency. Which most users are often easy to forget where the most ordinary laptop charging time is 3-7 hours, with better products to be completed in 2.4 hours recharge.

In addition, some regular users to minimize the use of a variety of components to achieve extended battery life of purpose, for example, do not use CD-ROM, hard disk read as little as possible to reduce the screen brightness or simply dormant and so on. These approaches can indeed maintain the battery a little more time, but “a temporary solution”, select the design of a battery with excellent products, in order to fully enjoy the convenience of mobile office with the fun.

Hybrid battery concern

November 27, 2004 ~ 29, held in Kyoto, “the 45th Battery Symposium” on the hybrid’s rechargeable batteries for concern. During the meeting, held the last day of the “lithium-ion battery (large-scale security review)” At the meeting of many people who can not find seats, not even squeeze into a lot of people standing outside the venue of the lecture. Required on both hybrid high-power density, high energy density and high-wide features such as the practical use rechargeable batteries, Hitachi Vehicle Energy (Hitachi Vehicle Energy), Matsushita Battery Industrial, Yuasa (GS Yuasa) companies such as published the results of the battery trial.

Among them, the Hitachi Hitachi Vehicle Energy and by the success of joint development is the appearance of the size of 108mm × 34mm × 117mm, weighs approximately 770g at right angles to the flat toshiba tecra a3 battery. Average working voltage of +3.6 V, the weight ratio of energy density 70Wh/kg. To ensure that the discharge capacity can be up to 20C discharge at 0.5C discharge, 80%, while electricity can discharge up to 20C to ensure that the 0.5C discharge at the time of above 75%. C indicated that the discharge rate, rechargeable 1 hour discharge at 1C, charging for three hours discharge 20C.

The use of non-crystalline carbon anode, cathode to Mn (manganese)-based materials using a special element of replacement materials. Products has been developed and compared to the particles to improve the cathode structure, the use of thin electrodes, and to reduce the resistance of structural components of a great martial arts aspects. As for facing the future issues of the 2:00 session, that is the end of battery life can also be low-temperature work, as well as in maintaining the power density at the same time increase the energy density.

Tube-type solid oxide fuel cell successfully developed

A few days ago, the Chinese Academy of Sciences Dalian Huawusuo the use of low-cost preparation of inorganic membrane technology successfully prepared tube solid oxide fuel cell, single-tube 1.0V battery open circuit potential in more than 800 ℃, 0.7V the output power up to 25W above. The tube-type cell research breakthrough for the development of solid oxide fuel cell distributed power plant and power station to provide a key focus on technology.

Solid oxide fuel cell membrane electrode configuration of the main plate and tube. Tube-type battery has good stability, ease of amplification module, suitable for the establishment of power stations, but the electrolyte membrane electrode electrochemical vapor deposition in general (EVD) technology to prepare, cost expensive. Therefore, the development of low-cost tube-type membrane electrode manufacturing technology, the development of solid oxide fuel cell power plant is crucial. Direction in the Chinese Academy of Sciences and Ministry of Science and Technology project, supported by cast Dalian Huawusuo in solid oxide fuel cell membrane electrode forming the base, electrolyte and cathode coating film coating technologies, such as the preparation made significant progress, the success of the preparation  8mm × 500mm tube film electrode to solve the single-tube flow cell and sealed set of technical issues, the battery is good for repetition priming, high reliability. In the tube during the preparation of membrane electrode, the use of low-cost preparation of inorganic membrane technology, abandoning the high cost of chemical vapor deposition CVD correspondence and EVD technology, a significant reduction in the tube of Preparation of the cost of batteries for the future type of toshiba tecra a6 battery industry technology development and solid oxide fuel cell has laid a good practical use of the technology base.

posted by myblo001 on Jul 1, 2009 6:12 AM | 0 comments
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The new lithium-ion rechargeable battery cathode materials

The new lithium-ion rechargeable battery cathode materials

Sanyo Electric recently successful trial using a new generation of lithium-ion rechargeable cathode materials for the candidate - LiFePO4 battery, and in “the 45th Battery Symposium” published the contents of the security.

The characteristics of LiFePO is: LiCoO2 cathode materials with the existing compared to lower-cost materials and high temperature will not release oxygen, thus the high security. In addition to Sanyo Electric, the seminar on the five research institutions have published the relevant results of basic research has been in full swing. For example, the University of Tokyo Institute of Technology announced the fast charge characteristics of LiFePO4. However, most of these studies remain in the pilot phase electrode, the battery can be used for the actual evaluation of the electrode characteristics has not yet begun. Sanyo Electric and the trial of a diameter of 18mm, high 65mm cylindrical, and battery on the security characteristics of the test. The use of a graphite anode.

Safety test in the detection of the trial cylindrical barbed nail cells and the circumstances Overcharge. Spurs to nail after 30 seconds the temperature rose to about +110 ℃, but then did not continue to rise, but slowly falling down. Charge during the test, as a result of charging excessive electrolyte decomposition temperature up to +120 ℃, while playing an open valve immediately after the power was cut off. From the above results, obtained in the security issues and there is no significant conclusions. Battery characteristics to 0.25A for discharge, the discharge capacity of 1095mAh, the energy density per unit volume for 214Wh / l, the energy density of unit weight for 96.5Wh / kg.

Issues currently faced by the characteristics of low temperature low. +60 ℃ at 96mAh, +25 ℃, when a discharge capacity of 888mAh to 0 ℃ will dramatically reduce the 375mAh. At the meeting, someone asked directly: “LiFePO4 there so many problems, there will be attractive to you? Have hoped to put in actual use it?.” In this regard, speakers from a personal point of view, said: “In addition to previously noted that the problem of low electronic conductivity, this time found a low-temperature characteristics of the problem of low, I personally feel that the future emergence of new issues.”

Canon to launch small-scale fuel cells for hydrogen supply device

Canon developed the use of MEMS technology to create the hydrogen supply device, and in November 29, 2004 ~ 30, held in Kyoto “PowerMEMS 2004″ were released on. Applications for digital cameras and other portable devices on the fuel cell.

The role of hydrogen gas supply device is to preserve high-pressure storage tank of hydrogen needed to release the amount of an atmospheric pressure dropped after the supply to the fuel cell. Its structure and the use of divers to breathe oxygen devices like the valve is very common (Canon). MEMS technology will be adopted to reduce the size 8mm × 8mm × 1mm.

The use of hydrogen gas supply device to the 300μm thick silicon films plus 3 stacked structure. With hydrogen pumps connected to the bottom with a single-chip switch, the resulting hydrogen gas to enter through the middle layer of the channel to form a single-chip into the top single-chip, single-chip from the top of the hole supply to the fuel cell. First single-chip top-level processing toshiba satellite m45 battery, with the middle layer to the stacked-on-chip processing, the final class with the most single-chip stack processing.

The lower silicon chip switch installed into the diameter of hydrogen 250μm. Through the opening and closing the switch to adjust the hydrogen supply. Released when it is published only in the use of nitrogen can be the result of normal work, it was used to test the hydrogen has been the same result.

Micro-generator can replace cell phone batteries

Georgia Institute of Technology announced that with the Massachusetts Institute of Technology, working closely with scientists, they have successfully developed a micro-generators, only 10 mm in diameter, is the continuing use of mobile phone battery is more than 10 times. Scientists will be held in January next year, the International Conference on Micro Electro Mechanical System published the results of this gratifying.

Georgia Institute of Technology is one of 10 open construction, computer, engineering, management and other professional, a total of 16,000 students in the United States is to train African-American women scientists and the best scientists, a university, research university is 2003-2004 academic year a total of 342 million U.S. dollars of research funding.

Over the years, more and more compact electronic products, and its battery has a larger volume of plays. In order to solve this problem, the scientists have been dedicated to the development of micro-generators, and put forward a number of different principles of micro-generators. And the Georgia Institute of Technology scientists have developed such a generator to replace the phone battery, indicating that micro-generators to enter the electronic products to replace conventional batteries and an important step.

The principle of the micro-generator is installed in a chip on the induction coil, so that a small rotating magnet around the coil, resulting in sufficient current. Through continuous testing, the rotating speed of the magnet is now up to 100,000 per minute lap, the speed can generate 1.1 kilowatts of electricity, enough to replace the phone toshiba satellite m50 battery. The researchers said that will be sure to have a speed of 20-50 kilowatts of power for laptop computers. In order to improve the rotation speed, the most critical problem is how to avoid rotating magnet in the process of fracture. Centrifugal force generated by high-speed rotating magnets broken enough to make, in order to solve this problem, researchers continue to improve the size of magnet and wrapped in titanium alloys in.

posted by myblo001 on Jul 1, 2009 6:09 AM | 0 comments
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Mobile phone battery life, a cause for concern

Mobile phone battery life, a cause for concern

A recent survey shows that 79% of the dissatisfied users of mobile phone laptop batteries. Of which 37% of respondents feel that mobile phone battery standby time is too short, day-to-day use to keep charging, and business travel is also very inconvenient; there are nearly 20% of people feel that mobile phone batteries in general, can not meet MMS, polyphonic , camera, Bluetooth, games and other multimedia needs.

It is reported that a large number of mobile phone screen to upgrade to more than 65,000 colors, camera functionality is toward the megapixels, coupled with high-quality ring tones, built-in games, video playback applications such as the rapid popularization of mobile phones more powerful, less power consumption to the greater. Equipped with double-double charge, carry a spare cell phone consumers in many ways to solve this problem. “Durable demand for the original standby limited to specific user groups, but gradually developed into a universal demand.” Konka vice president of marketing communications, said Han Xiaoming, demand changes in the birth of a huge market opportunity, Konka most energy-efficient technology in recent years accumulation of research have begun to get a return.

“Communications technology is the basis of standardization, and the demand is differentiated. The difference between the market demand analysis, based on the formation of the final product differentiation Konka competitive advantage.” Konka communications market, according to the Ministry of person in charge, Konka taken to market demand-oriented IPD Integrated Product Development System, this system has an emphasis on research and development needs in the market and competitive analysis based on the selling points of product differentiation.

It is, Konka began as early as last year with a well-known market research company in Hong Kong co-operation needs to carefully study the market. Through research, the target users Konka players are divided into super-type, technology type, such as practical four groups. HAN Xiao-ming said that in November the main ultra-long stand-up to play the main standby battery of the “protracted war”, and to achieve product sales objectives heavyweight.

China’s promotion of low-mercury-manganese dioxide batteries to reduce the use of Ni-Cd battery

China will gradually increase the amount of less than 0.0001% of mercury in alkaline manganese dioxide batteries in the battery in the proportion of one-time, to encourage the development of lithium-ion batteries and nickel-hydrogen rechargeable batteries, such as alternatives to rechargeable nickel-cadmium batteries, nickel cadmium batteries to reduce the production and use, the final out in the civilian market Ni-Cd battery.

And so on in accordance with the State Environmental Protection Administration jointly issued 5 batteries pollution control technology policy, as well as the mercury content in batteries than 0.0 battery quality and 25% of the manganese alkaline manganese batteries, in accordance with the relevant provisions of the country have been banning the production and sales. 1 January, 2005 will halt the production of mercury is greater than 0.0001% of the alkaline manganese batteries, will also gradually reduce the production of battery paste and sales, and ultimately out of battery paste.

It is understood that the high-capacity alkaline batteries battery capacity than the low-65 percent reduction of environmental pollution, low-capacity rechargeable battery than the battery one-time 99 percent reduction in pollution of the environment. Therefore, this policy to encourage and support consumers to use less than 0.0001% mercury content in the high-energy alkaline zinc manganese dioxide batteries, nickel hydrogen batteries and lithium-ion rechargeable batteries to replace nickel-cadmium pa3399u-2brs battery to encourage and support consumers refused to purchase, use substandard and counterfeit products, as well as the battery is not correctly marked on the battery logo products.

NEC introduced the classic ultra-thin notebook computer batteries

A few days ago, NEC launched the classic ultra-thin notebook battery— NECS820, new product with a backup battery, you can without any external power supply in the state of non-stop from 9:00 am to work until 20 o’clock, and be able to 2-4 hours for the battery is fully charged.

According to industry, currently on the market most ultra-thin notebook computers, cell expansion have not been able to achieve “full portable,” and after loading so that the lower part of the formation of protruding body not only affects the body beautiful also reduce the portability of users this is a fly in the ointment.

NEC’s S820 is designed to extend the battery very thin flat-shaped, and its size is fully consistent with the fuselage, with the expansion of the bottom of the chassis battery integrated with the fuselage, and maintain the integrity of the body beautiful and smooth state.

Hydrogenation few points into the development of fuel cell vehicles in Japan barriers

Recently, the Japanese experts estimate that by 2010, the fuel cell market size is about 1 trillion yen (110 yen about 1 U.S. dollars) by 2020 is expected to reach ¥ 8,000,000,000,000. However, the development of fuel cells are also encountered some difficulties. For example, the price is too expensive, too few hydrogen refueling station. Metropolitan area in Japan is currently only 10 hydrogen refueling station. Although the rate of a hydrogen can be driven 350 km, but because too few hydrogen refueling station, the battery in the left two-thirds of the hydrogen, they often have to start thinking about where the next hydrogenation.

Japan in May this year issued a formal “strategy to create new industries”, the development and application of fuel cells on the pivotal position. December 2002, Toyota and Honda to market fuel cell vehicle, the two car companies to the Japanese government to pay 55 fuel cell vehicles. Now, the two companies have already produced fuel cell vehicle 28.

Where the fuel cell vehicle by the person that spoke with one voice to praise the performance of vehicles. The noise is very small, a maximum of up to 145 kilometers per hour, a hydrogen fuel supplement may be traveling 350 kilometers, and refueling vehicles traveling a similar distance. According to experts estimate that by 2020, Japan’s fuel cell vehicle up to five million.

At the same time, fuel cells are entering the homes of ordinary people. In May this year, Tokyo Gas Company to demonstrate the use of residential fuel cell demonstration. In the display, located outside of the household fuel cell to provide domestic electricity toshiba satellite a105 battery thus saving the annual lighting and hot water costs from 30,000 to 50,000 yen.

posted by myblo001 on Jul 1, 2009 6:02 AM | 3 comments
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New battery electric vehicles premature

New battery electric vehicles premature

The appearance of a new electric bicycle, the key parts - the quality of the laptop battery itself, there may be “fatal” flaws. Yesterday, a few years the electric car technology research and sales experience into a red-hi engineers, revealed to reporters as well as many supermarket stores to sell electric car electric car batteries it is not configured in accordance with the principle of battery maintenance, resulting in a large number of new significantly reduce battery life.

Bought a lot of electric vehicles, will have such a feeling, bought the car not long, but somehow can not help feeling that power is insufficient, in the maintenance of points, after-sales service staff will be informed, “to replace the battery dying.” According to the Consumer Association’s complaints Nanjing analysis showed that, with the electric vehicle market continues to develop, followed by complaints on the quality of electric cars are the rapid growth of cases, among which, 8 as is for the poor quality of electric vehicle reflected.

Electric bicycle battery bad Why is it that easy? Hi in red under the guidance of engineers, journalists at the East came to a point-of-sale electric bicycle, a good plan in accordance with the prior discussion, the reporter disguised as a fancy electric vehicles, require sales staff will unload the car battery, the journalists face a special request, the sales staff seemed a bit reluctant. Into work quietly told reporters that the first note of the date of the battery production, the reporter saw a battery box mounted on the three batteries, the date of its production was not the same, which is 2 August 16, 2004 production , and the other one is September 6 production. Hi red to the sales staff was asked from time to time they have to charge the battery, in the face of the problem appears to face each other at a loss.

“The battery electric vehicles to hide the fact on here, and some sellers are not professional knowledge, it should be can not shirk its responsibility”! Cheng Hung Hei told reporters that the main battery electric vehicles is the stereotype, and by in-house, composed of sulfuric acid solution, if a certain period of time not to charge the battery, then the solution will precipitate sulfate, then have a resistance, would result in battery power directly decline. Specific performance will not be long for the charging, the battery will be hot, when cycling mileage will be manifested as inadequate. Into workers explained that the dealers in terms of electric vehicles for their own electric cars should be sold at least once a month and a half in charge, or will directly affect the life of electric vehicle batteries, in accordance with an electric car can be recharged more than 200 calculation , if we do not charge for more than two months, the battery life may be reduced by half. Buy a car but in reality, very few people have asked open the battery cover to see inside the battery manufacture date. Work into the public is advised to buy electric car, we must require sales staff will be equipped with a battery to open the lid, carefully check the date of built-in battery production, and most secure way is to choose the date of the battery factory one and a half months in the .

Chinese Academy of Sciences Dalian Huawusuo breakthrough in fuel cell technology has been

Dalian Institute of Chemical Physics, Chinese Academy of Sciences in the application of fuel cell system development, technology development, the industrialization of a breakthrough has been made to form their own intellectual property rights with the proton exchange membrane fuel cell technology system, has declared 31 patents.

Fuel cell is a kind of the fuel electrode through the chemical reaction directly into electrical energy generating device, it has a high energy conversion efficiency, zero emissions, environmental protection, features such as fast start, the battery has no moving parts, low noise, use very extensive. Dalian Huawusuo China’s R & D of fuel cell technology “leader”, from the 20th century, began to carry out the 60’s fuel cell research, have successfully developed a dynamic space drainage system using hydrogen fuel cell, in the electro-catalyst, membrane electrode three One preparation, the flow field structure, the water thermal management, hp nx6120 battery systems to declare the 31 invention patents.

At present, the development of fuel cell technology has been gradually formed an industry on the national economy and national defense have had a tremendous impact, the scientific organization predicted that the significance of fuel cells can occur and electricity, telephone, television, personal computers, the emergence of the Internet comparable.

In recent years, has successfully developed Dalian Huawusuo dynamic space drainage system using hydrogen fuel cell, alkaline, underwater with kW class hydrogen fuel cell system, assembly of the 20kW to 10kW and the decomposition of nitrogen gas for the fuel type of the Liberal Media battery pack and battery performance have been studied. As the fuel cell adapted to the requirements of sustainable human development, so our fuel cell R & D intensity has increased.

“Ninth Five-Year Plan” period, the Chinese Academy of Sciences and the National Dalian Huawusuo in the financial support of Ministry of Science and Technology, for the first time the successful production of renewable hydrogen fuel cell system; three-in-one in the preparation of membrane electrode technology, especially the electrode structure has made significant progress, battery performance has reached international level of publicly reported; the development of direct methanol oxidation catalyst has reached the international advanced level. “Tenth Five-Year” period, then Dalian Huawusuo study focused on fuel cell vehicles. According to Assistant Director Dalian Huawusuo, fuel cell project director of the Center, introduced Dr. Zhang Huamin, the goal is the 2008 Beijing Olympic Games, the Chinese developed the use of fuel cell bus operation.

China’s successful development of a 50 kW fuel cell

From Dalian Institute of Chemical Physics, Chinese Academy of Sciences developed the 50 kW fuel cell city bus engine, has been recently adopted by the Group of Experts on Science and Technology Organization Test appraisal.

According to the Chinese Academy of Sciences in charge of the project director of the Center for Fuel Cell Engineering Professor Zhang Huamin introduction, this bus to achieve the full automation of the engine control, battery power and operation to further enhance the stability, the engine can achieve the inspection system to monitor each and every millisecond a single battery voltage changes occur on the battery pack in a common fault with the predictive control, self-healing function, key components to work well. Automobile Research Institute of Tsinghua University, the standard test conditions the actual examination showed that the engines of up to 97% hydrogen utilization, pa3399u-1brs battery power up to 57% efficiency, engine efficiency is more than 42% of the targets close to international advanced level. Said Professor Zhang Huamin, this engine has to load test. At present, they have declared 19 patents. At the same time, city car with fuel cell engines are ready to meet state assessment. He said that at present, fuel cell engine cost more than the traditional engine of your car a few times to large-scale application of the estimated 2005 to 2010. Said Professor Zhang Huamin, they will be completed in 2005, fuel cell vehicle technology platform for the Olympic Games in 2008 when the composition of domestically produced fuel cell vehicle team.

posted by myblo001 on Jul 1, 2009 5:58 AM | 0 comments
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