BAK and Car battery

BAK and Car battery

$ 300,000,000 bet car battery BAK: results in 3,5 years

Neighbors and BYD Battery Co., Ltd. Shenzhen BAK (CBAK.Nasdaq), new energy vehicles in the table, who spent 300 million U.S. dollars in chips. The mobile phone, laptop battery based industry companies, but also put into the development of battery vehicles, electric vehicles in the future hope to grab a slice of the feast.

"Companies are prepared, this investment at least 3-5 years to see results." BAK Battery, vice president of marketing, said Cui Ke.

In the IT, communications to the development of small profit margins today, seeking growth next important issue is the battery manufacturers. For BAK Battery, this point is not only a good prospect, but not every competitor can follow up.

Thousands of units per year car sales in the world, as long as one tenth of the vehicle battery, is a huge market. Cui Ke dreaming, where he went to the BAK Battery is also good prospects. Although their current business Liucheng from cell phone batteries, three come from HP, Dell laptop battery OEM.

BAK said it would take 300 million U.S. dollars budget to build new plant in Tianjin, the production of power batteries. At present, the initial investment over the plant, are a number of pilot light electric vehicle batteries.

"End of the year to pilot car battery." Cui Ke said. But when it can achieve returns, Cui Ke estimate, "at least another 3-5 years." Currently, they focus on supply of electric bicycles. Capacity of the National LEV, Tianjin has one third of the world, this is a new plant site BAK Battery, Tianjin, an important reason.

Mozambique's strategy is: start doing light electric vehicle batteries began the transition to a car battery. This allows a gradual transition in technology, you will not be up to several years of investment of the collapse.

From single cells, to a dozen batteries, to the hundreds of battery packs, it seems that only numbers. But how to ensure the consistency of the battery, and supporting the corresponding cell control system, as a constraint to technological bottlenecks in the industry. Who can overcome technical bottlenecks, whoever will be the biggest beneficiaries of new energy vehicles. Of course, people who can keep up with changes, but also share the feast.

Risk is, who is also not allowed after 3-5 years in the end security can not be profitable, and pre-investment is real money. Cui Ke said, although there are 863 projects funded, and local government in terms of investment and financing some of the green light to open, the pressure is still very large funds.

Opportunities?

A few years ago, a Nokia cell phone battery asking price 200 yuan, and now can be purchased for tens of dollars for cell phone manufacturers do everywhere. "You can not always be a mobile phone battery, the secondary market price war is too cruel," Zhongguancun (3.93, -0.32, -7.53%), a communications equipment sales sigh, as far as he knew, and even some hand-made battery workshop .

Price war with notebook manufacturers and the rise of the Internet, the cost of laptop batteries sharp compression. In response to the recovery of Korean battery manufacturer, BAK Battery, recently added two production lines in order to return with the cost advantages of scale.

Behind these self-help measures, China battery manufacturers generally helpless. Electric vehicles are being introduced the New Deal, it seems to provide them with an opportunity. It is understood that, in addition to BAK outside the few big battery manufacturers have begun to varying degrees, R & D of electric vehicle batteries.

"For many battery manufacturers, this is indeed good news." Changshu, Jiangsu Province by the Triangle Institute of Technology, Changsha, environmentally friendly energy Yongkang said. He said that the country vigorously promote the policy of new energy vehicles will certainly promote the development of related products market.

But he also believes that the field of automotive batteries if you want to Denver, companies must have a considerable accumulation, "Not every company can do" because it eventually hundreds of millions of investment.

This input becomes most uncertain future is the direction of electric vehicle development problems. Detection of related technologies, standards are not clear, hybrid transition period, recovery of raw materials costs and difficult environmental problems caused by, battery manufacturers have increased the risk of betting.

According to market analysis, refer to BYD's stock price, and now the concept of new energy vehicles difficult to have confidence in the stock market a substantial boost. Meanwhile, the uncertain prospects of the technology and policy, but also the most industry funds do not want to touch the risk.

"BYD's warehouse, but also piled ten million battery scrap the experiment." Difficulty of the experiment, Cui Ke company has prepared, but he said the company had not expected to lose money in the end the number of early.

Sand Yongkang prediction: "Finally, only a few can be successful."

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Fuel cell products made in China exported bulk

Fuel cell products made in China exported bulk

January 5 reports: Along with the "Water and Sustainable Development" as the theme of the 2008 World Expo closing of Spain, the Chinese fuel cell products in the international arena, the successful debut also drew the curtain.

Impression in people's past, the fuel cell is more of a veiled high-tech products, very green, very advanced, but still far from practical. A company called climbing the emergence of hydrogen energy industry to change this situation. Has now developed a series of fuel cell products, and has applied to the tour buses, bicycles, portable power and other occasions.

Bottlenecks due to technical restrictions, the domestic fuel cell in the past mostly as a demonstration purpose. Even if only as an occasional sample sales, and not a batch. The climbing equipment, the fuel cell industry, 21 electric bicycle export to Spain. Fuel cells and fuel cell products, though the sample is only one word, but the meaning is very different. As the product not only satisfied with the work to stabilize, and must have the durability, practicality, cost, appearance and other aspects as well as considerations. In addition for different markets, the relevant certification was necessary.

The export volume fuel cell products is another important significance lies in its purely domestic! This not only refers to the bicycle body also includes a key raw material in fuel cells: catalyst, membrane, carbon paper and the localization of bipolar plates. In which the catalyst and membrane by climbing industry independent research and development and production. Long been neglected domestic raw materials in the practical proof of its outstanding performance in par with international similar products. At the same time the localization of key materials, so often been criticized for the cost of fuel cells can be effectively controlled. Since most of the past, the key raw material to be imported, which makes the cost of the fuel cell control was clutched in the hands of foreign companies, the stakes just look at China's IT industry will be able to get some idea. As foreign enterprises to master the most upstream CPU technology, most IT enterprises has become an overseas Chinese enterprises assembly plant and the client, the price level determined entirely by the upstream firm.

Because these products excellent performance in Spain, climbing industry, the company's Spanish and Italian partner is actively planning for vehicles driven on public roads in the matter, in 2009 there will be more Chinese-made fuel cell products in Europe.

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Polysilicon

Polysilicon

The first polysilicon project in Jiangxi province put into an annual output of 500 tons

Camphor salt chemical base settled through the silicon material Co., Ltd Jiangxi polysilicon production project put into production. The project has now completed a total investment of $ 50,000,000, an annual output of 500 tons of polycrystalline silicon, trichlorosilane 1.6 million tons, is the province's first production of polysilicon production projects.

Polysilicon is widely used in semiconductor integrated circuits, solar energy industry and other fields, is a national "Eleventh Five-Year" strong support during the high-tech industries. By camphor municipal government of the active operation, the introduction of American General Silicon Material Co., Ltd. and Jiangxi Nanchang Yu Silicones joint venture, the founder of Silicon Materials Co., Ltd. Jiangxi can pass. Siemens, the company modified method of using a mature technology, can shorten the production cycle of silicon 40%, with a clear competitive advantage. It is understood that Silicon Materials Co., Ltd. Jiangxi pass to the formulation of the four development plan, in a project on the basis of production targets, two, three, four will each add 3,000 tons of polysilicon production capacity will eventually reach annual produced 9,500 tons of production scale.

It is reported that camphor salt chemical base covering 10.24 square kilometers, has gathered a group of high salt chemical industry association projects, the basic realization of the matching upstream and downstream enterprises, and recycling of resources, reduce production costs for the polysilicon project to improve competitiveness in the market has created favorable conditions.

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Power Lithium Battery Product Analysis

Power Lithium Battery Product Analysis

Has the "ultimate energy" and "green energy," said the lithium-ion batteries, since the 90s of last century since the advent of electronic products from the button batteries, cell phone, DC digital products in the lithium battery, the electric vehicle in the battery power, is increasingly widely used in people's production and life. Compared with other batteries, lithium-ion batteries on whether it is from the volume, weight, or from the performance, have a great advantage.

To use in a reasonable range of voltage within the capacity of lithium batteries, one-sided pursuit of large capacity, high voltage is wrong. First, any thing to go through a simple to complex, from hard to easy the process is also flammable like gas, effectively guarantee the safety of lighters is relatively easy, to effectively guarantee the safety of fuel tanks would much more difficult, crash is still not fully resolved the situation when the car caught fire and exploded. A limited volume in the more energy the more the accumulation of bad management, is currently the largest in Suzhou Star 48V10Ah constant can only guarantee the safety of the battery combination. Second, the higher the voltage, the greater the capacity, protection circuit and a balanced circuit the greater the difficulty and failure rate, so do not advocate Suzhou Star constant and does not support beyond 48V10Ah battery combination.

Depends on the safety of lithium battery testing and certification

A, UL certified

Today, most countries and regions in the world involving security, health, environmental protection projects such as product requirements must be obtained before entering the market, the safety certification. UL mark has become world famous one of the safety certification mark.

Testing standards are as follows:

1, shell

Li-ion battery shell should have sufficient strength and rigidity sufficient to resist the pressure of the indiscriminate, without causing fire. User-replaceable lithium battery should have sufficient strength they would not hurt people.

2, electrolyte

User replaceable batteries should not contain the pressure of vapor or smoke damage the eyes of the toxic vapor and liquid, or the battery case in the normal laboratory conditions (temperature 23 °C), by the shock fluid leakage should be less than 5ml.

3, the use of

Li-ion battery should be used to take measures to avoid the normal charging current, the test has an acceptable battery charge current Ic, not normal conditions, the end product should be used in protective measures.

4, the leakage

Mass loss of leakage or leakage standards, the quality of batteries or battery does not exceed the maximum loss 1g0.5%, 1 ~ 5g0.2%> 5g0.1%.

5, mechanical tests

(1) extrusion: 32mm diameter by a hydraulic piston two flat surfaces on the battery pressure 13KN (pressure 17.2Mpa), when the maximum pressure after pressure relief. Sample no fire, no explosion.

(2) Impact: 15.8mm in diameter on the sample center of the rod, so that the weight of 9.1Kg of weight fell from a height of 610mm specimen. Sample no fire, no explosion.

(3) Acceleration: batteries on the fixture, respectively, the three mutually perpendicular directions along the acceleration (acceleration requirements: the initial acceleration of 3ms to be achieved within the minimum average 75g, peak acceleration is between 125-175g). Test temperature 20 ± 5 °C. Samples should be no fire, no explosion, another sample is not leakage.

(4) vibration: a simple cell tuning withstand vibration (along the three mutually perpendicular directions), 10-55Hz frequency range in order to 1Hz/min rate changes in 90-100min to restore back to an amplitude of 0.8mm. Samples should be no fire, no explosion, no leak.

(5) Thermal Shock: the sample in a natural convection or forced convection oven heating, the oven temperature to 5 ± 2 °C / min rate of heating to 150 °C, and keep the stop after 10min. Samples should be no fire, no explosion.

(6) thermal cycle test: the test room and placed the battery under the following cycle:

30min the temperature to 70 ± 3 °C, heat 4h.

30min cooled to within 20 ± 3 °C, heat 2h.

30min the temperature to 40 ± 3 °C, heat 4h.

30min cooled to within 20 ± 3 °C.

Repeat the above cycle 9.

10 cycles, the battery put 7 days for inspection. Samples should be no fire, no explosion, no leakage.

(7) altitude simulation: the sample cell at an absolute pressure of 11.6Kpa (1.68psi), 20 ± 3 °C (68 ± 5 ° F) conditions, stored for 6 hours. Sample cell is not an explosion or fire, can not have holes or leaks.

6, charge and discharge test

(1) charge and discharge cycles: test temperature 25 °C, according to the manufacturer's batteries to charge and discharge cycles required, the initial nominal capacity of recycling to 25% capacity or 90 days after the termination of a continuous loop. Samples should not be any security incidents.

(2) short-circuit test: less than 0.1Ω resistance of copper wire on the positive and negative for short-circuit the battery, the battery discharge until the fire or explosion, or until the battery is fully discharged, the temperature back to room temperature to stop the shell (test at room temperature for 60 ± 2 °C circumstances.) Samples should be no fire, no explosion, the shell or the battery case temperature does not exceed 150 °C.

(3) non-normal charge test: normal discharged to 3 times the normal charge current of the current charge. No fire, no explosion.

(4) forced discharge test: fully discharged batteries at room temperature, and a number of new batteries of the same model in series, the formation of the battery pack short circuit test. Samples should be no fire, no explosion.

(5) over charge: the battery in fully charged condition to 3C, 10V constant current, constant voltage to charge the battery, when the current reaches 100mA, the converted constant voltage for 48 hours.

7, identifies

The battery manufacturer should identify the name, trade name or trademark, style setting. The battery identification Warning, and a corresponding description.

Second, ExtraEnergy standards

ExtraEnergy certification is a non-profit organization based in Germany, Tanzania Na, the main work is to focus on the global neutrality of light electric vehicles of information, and provide value-added services, including testing related to the safety of lithium batteries is very strict, rigorous, get most European customers.

Testing standards are listed below.

Test methods test the safety standards before the state test method

1 Non-normal charge at room temperature, and air power, the original assembly. Removal and management of circuit protection circuit, in the case of the battery pack is fully charged, the battery had to 10A charge current to 1.5 times the nominal voltage. No fire, no explosion; battery shell temperature during the test is less than 120 °C; experimental wooden table is not burning coke; the release of toxic gases.

2 short

Room temperature, the original charger to be fully charged, the original assembly.

Removal and management of circuit protection circuit, the battery pack is fully charged in the case of direct positive and negative battery short circuit. No fire, no explosion; battery shell temperature during the test is less than 120 °C; experimental wooden table is not burning coke; release of toxic gases.

3 heavy compression at room temperature, the original charger to be fully charged, the original assembly. 15 cm diameter steel rolls, 10 tons of pressure to squeeze the battery pack. No fire, no explosion; battery overflow of gas, solid and liquid non-toxic.

Third, CE certification

In recent years, the European Economic Area (the European Union, the European Free Trade Association member countries, except Switzerland) commodities on the market, CE certification mark, more and more CE certification mark affixed to goods that their safety, health, environmental and consumer protection and a series of European directives to express requirements.

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