Targeting future and achieve industry
Posted by sunny27 on Feb 03, 2010Targeting future and achieve industry
Than the fujitsu lifebook e8310 battery existing carbon materials (372 mAh / g) a higher-capacity anode material for studying the hot, the tin oxide was first found to have excellent lithium storage performance, leading people began to study a series of metals and oxides based on The anode material, however, tin, silicon, etc., as anode materials for lithium-ion batteries a fatal question: charge-discharge process, with the embedded lithium repeated extrusion, volume change of up to 300% -400%, resulting in the mechanical stability of the lower electrode, powder materials are also due to the gradual failure occurs, the cycle of poor performance.
Huang Xue-Jie said, nano-alloyed tin-based materials can overcome this weakness has been obtained in the SONY’s Nexlion application, the physical location in 1998 issued a paper pointed out that the nano-technology is to improve the cycle performance of such materials, an effective way. Domestic Chinese steel Research Science and Technology Corporation in the support of 863 has been initially developed with certain cyclic stability of the tin-based materials. Around the world, with a high specific capacity fujitsu Esprimo Mobile V5515 Battery of the non-carbon negative electrode material is in a large-scale commercial application of the initial stage, using three-dimensional sets of fluid materials, lithium-ion battery anode materials to improve the electrochemical performance and is the current international field of lithium-ion battery A major research focus. Compared with the traditional two-dimensional copper foil, three-dimensional sets of fluid materials, active substances can provide a more favorable environment conductive to shorten the average electron transport within the porous electrode distance, thereby reducing the resistance of a pole piece, reducing the high current charging and discharging of the electrode produced a very phenomenon; more importantly, the three wiki body can to some extent alleviate the high-capacity active material than the “volume effect”, reducing stress on the electrode structure damage, thereby improving the electrode cycle life and charge-discharge efficiency.
Currently, Suzhou Star Constant Power Co., Ltd Li-ion power battery power has reached more than 120Wh/kg, accounts for the domestic electric bicycle lithium-ion battery for more than 80% of the market, some products have entered the international fujitsu Esprimo Mobile V5535 Battery market.
“Eleventh Five-Year” period, 863 plans to continue to provide support for vehicle power battery and energy storage battery research and development of key materials, launch a series of projects.
Huang Xue-Jie said that with the power type lithium ion battery materials, the process of industrialization in-depth, it will greatly promote the motive power industry, technological advances, in terms of safety, high-temperature cyclic nature of life, or from in terms of manufacturing costs, will be the motive power of the product promotion and market development to a new level. On the other hand, the new, power-based lithium-ion fujitsu Esprimo Mobile V5555 Battery cathode materials for the development of upstream raw material producers also put forward higher requirements for the upstream industry in the purity of the product as well as manufacturing cost, the technological progress and development.
“I believe the next few years, lithium-ion battery powered electric vehicles will gradually occupy the fujitsu lifebook b6210 battery market.” HUANG Xue-Jie said.
February 21st, 2010 at 10:36 pm
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