Targeting future
Than the existing carbon materials (372 mAh / g) higher capacity anode material for studying the hot Dell TD347 , Dell U4873, 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 panasonic cgr-s602e , panasonic dmw-bm7. Domestic Chinese steel Research Science and Technology Corporation in the support of 863 has been initially developed with a certain cycle stability of the tin-based materials. Around the world, with a high specific capacity 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.
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