Oct 15
2009

Li-ion battery for electric cars could run Huan (Environmental Science and Technology Bridge)

According to statistics from related departments of Digital Camcorder Battery China’s electric bike in 2006 the amount of the domestic market has been more than 20 million. With the urbanization strategy, and continuously push forward the construction of new countryside, the next five years, China’s electric cars will maintain an annual growth of 50%. However, in recent years, some parts of electric bicycles into “what course to follow,” the embarrassing position – on the one hand, widely welcomed by ordinary people, because both light, but also save money, solve the problem of difficulty of travel; the other hand, Many cities in the traffic control department did not buy it, and frequently limits forbidden lines, individual cities or even the name of the government to ban incurred a lot of opposition from the public and experts.

Many cities limit, ban on electric bicycles, one of the many reasons are: electric bicycle with lead-acid batteries in the waste can not be effectively recovered after treatment, polluting the environment. From Changxing County, Zhejiang Xinghai Energy Technology Co., Ltd. self-developed lithium battery power, from the fundamental solution to the pollution problem, can replace lead-acid batteries for electric bikes. Xinghai Energy Technology Co., Ltd. from 2003 began to develop lithium batteries for electric bikes. At Peking University, Zhejiang University’s support, the company invested 50 million yuan, the recent successful development of lithium-ion battery power, the product through the national laboratory testing, the performance parameters measured are far higher than the national standards.

According to the company’s chairman, Xu Aokui presentations, with this power lithium batteries using lithium nickel-cobalt-manganese oxide as the positive plate material, and join the nano-fiber fabric tubes and corporate self-developed dispersant HW-1, significantly increased Digital Camera Battery large current ability to work ; use of nickel as a cathode with a conductive plate so that the battery discharge the surface temperature is not obvious. At the same time, the company developed its own additive HW-2 electrolyte, using safety devices with independent intellectual property rights, can greatly reduce the burning of electrolyte solve the lithium batteries that may arise during the use of security issues.

Power Li-ion battery also has a lightweight and compact, weighing only the same power lead-acid battery 1 / 3. Lead-acid battery life is generally 1-2 years in order to enhance battery life, the company has developed a lithium-ion battery charge and discharge connection converter can be realized in parallel when the battery charge and discharge time series, solving the battery discharge due to a different individual caused by the value of the overall decline in energy storage, improve the overall performance and battery life, the current lithium battery life has reached 3-5 years.

To participate in the assessment of the Group believes that Xinghai Energy Technology Co., Ltd. R & D power lithium battery has a good safety performance, long cycle life, high current performance, excellent high temperature performance is good, pollution, etc., can replace lead-acid battery electric bicycle, more than lead-acid batteries, and more cost-effective, with a high spread value.

Chinese military R & D Stealth performance fuel cell power generation system with strong

Shen Weidong, Chongqing Communication Institute of the military Head of Department of Electrical Engineering, professors, army of outstanding doctoral students, the General Staff of outstanding young experts. The main research results of scientific and technological progress army won first Canon Battery, second, third prize and the military-level teaching achievement prize. Published Xueshulunwen 44, there were six included three international search.

In the eyes of Professor Shen to study the military power is the magical world of a never-ending. Battlefield information collection, transmission, processing, where a link can not do without power. Time, Professor Shen came to the ongoing field training regiment of an army group communication research. Army leaders learned that he was an expert on power, earnestly said to him: “Shen, Professor, do you see the petrol generator sets, noisy, bad concealment. What you want to solve this problem, they can hit the big time in the咱forces . ”

Return to the college, Shen, director of the immediate convening of teaching and research backbone of the mobilization: “We can not be limited to the classroom thinking, but also to ‘reach’ extended to the military line, extending into the future battlefield!”

In the superior leadership and College of the concern and support, Shen, director with several young teachers, and the formation of our army since the first “Key Laboratory of military special power,” and assumed “a power stealth technology and equipment research” subject. They had neither experience to draw upon their predecessors, but also the lack of relevant laboratory facilities, we can say is starting from scratch. No high-temperature laboratory, Shen, director of the research group led by members of the highest temperatures during the summer doing outdoor temperature experiments; no anechoic chamber, they are the quietest at 1:00 when the noise field experiments to do. In the wild, mosquito en masse to the person pounce, they cast Fengyoujing, laptop battery cast coat against mosquitoes. In the end, they are on schedule to complete the task, the results won first prize in the military scientific and technological Canon BP-208 progress.

The face of an increasingly complex battlefield environment and the increasingly accurate means of surveillance to combat the traditional stealth generators poor performance and battery-powered sustainable short time has become urgent to solve the two problems. To solve the battery problem bad power supply capability for sustainable, Professor Shen learn from foreign military experience, proposed the “give priority to developing a long-term fuel-cell-based modular power stealth” way of thinking. Years grinding sword. In 2003, they completed a “a fuel cell power generation system” technology breakthroughs, and achieve breakthroughs in key technologies 8 obtained two national patents. When the results of Professor Shen bring into force of this model shows, the front-line officers and soldiers were highly appreciated.

The footsteps of explorers endless. A sense of responsibility and mission to promote Professor Shen to continue to aim at the forefront of the development of military power to accelerate the pace of exploration for the army to provide more information on building a reliable, long-lasting power supply protection.

Development of solar energy long way to go people want to say love you is not easy to

This clean, renewable solar energy, has become the ease energy shortages, environmental pollution and curb global warming, new hope, however, for various reasons, solar power has yet to traditional energy, as well as the services to us. Why?

Merchandise in the industry chain, silicon materials, the lack of a bottleneck

Domestic enterprises eager to wafers, cells, components of the rapid expansion Canon BP-511 of production capacity, through the outsourcing processing of silicon and battery-chip package components, while the upper material and silicon ingots and slice the rate of expansion is far behind, multi – refinement of crystalline silicon material in a blank in our country.

The lack of independent intellectual property rights, equipment and technology is almost entirely imported

Compared with the world’s developed countries, China PV industry chain is relatively weak in all aspects. Solar cell manufacturing technology, low level of domestic production, there is no core production technology and independent intellectual property rights.

There is no industry standard, the lack of anti-dumping measures

At present, China has no unified national industry standards and testing organizations, the domestic market is very unstructured. Foreign products into the Chinese market without going through any agency of the testing of domestic and import tariffs to zero; while European and American market access for our products must pass through rigorous testing to obtain certification before it can enter.

A serious lack of qualified personnel

Photovoltaic power generation industry is a more integrated industry, require a multidisciplinary joint research personnel, while the domestic solar photovoltaic technology, human resources are extremely scarce.

Development and utilization of solar energy, is a response to global warming and the urgent need for rational use of energy. In the initial stage of development and utilization of solar energy, can not do without state support, market pull alone is not enough. Western developed countries, widespread use of solar energy development and utilization of encouragement and support policies, experts said that we should refer to the foreign policy of the solar energy companies to give preferential policies in areas such as financial Canon LP-E5 discount Canon NB-1LH to raise price of solar power grid, encourage photovoltaic power generation, to provide the community clean energy; in architectural design introduced policies to promote solar energy and construction integration process; In order to guide and encourage the use of solar energy, it is recommended to consumers for personal income tax relief or allowances; the same time, promote solar energy science knowledge, so that the community to understand solar energy, use of solar energy .

The same time, experts also hope that relevant departments in the formulation of rules of China’s solar energy when a clear development goals and plans to further refine the various support measures to make solar energy development and utilization of this sunrise industry and be able to get more care and support, develop more faster and better.

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