发明名称 |
Active material composition for the negative electrode of a lithium-ion accumulator. |
摘要 |
Alloy comprises tin, silicon and carbon, and a crystalline phase. Alloy comprises tin, silicon and carbon, and a crystalline phase having the structure of formula (Sn-M). M : an inert metal. Independent claims are included for: (1) an alloy comprising tin and silicon, comprising: (a) a nanocrystalline phase containing at least 50 atom% of the silicon element; (b) a nanocrystalline phase containing a tin compound; and (c) a nanocrystalline phase containing tin element; (2) electrode comprising the alloy; (3) lithium-ion battery comprising the electrode, which is a negative electrode; and (4) manufacturing the alloy comprising silicon and tin comprising: preparing a pre-alloy from tin and at least one inert metal and/or aluminum; (b) adding carbon, silicon and optionally inert metal to prealloy of step (a); and (c) synthesizing the alloy. |
申请公布号 |
EP2242129(A1) |
申请公布日期 |
2010.10.20 |
申请号 |
EP20100159533 |
申请日期 |
2010.04.09 |
申请人 |
SAFT GROUPE SA;CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE;UNIVERSITE DE PARIS XII VAL DE MARNE |
发明人 |
HEZEQUE, THIERRY;CUEVAS, FERMIN;LATROCHE, MICHEL;CAILLON, GEORGES;JORDY, CHRISTIAN;AUDRY, CLAUDETTE |
分类号 |
H01M4/36;H01M4/134;H01M4/38;H01M10/0525 |
主分类号 |
H01M4/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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