发明名称 |
ELECTRONICALLY CONDUCTIVE POLYMER BINDER FOR LITHIUM-ION BATTERY ELECTRODE |
摘要 |
A family of carboxylic acid group containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current. |
申请公布号 |
EP2433323(A1) |
申请公布日期 |
2012.03.28 |
申请号 |
EP20100778211 |
申请日期 |
2010.05.17 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA |
发明人 |
LIU, GAO;XUN, SHIDI;BATTAGLIA, VINCENT, S.;ZHENG, HONGHE |
分类号 |
H01M4/04;B82Y30/00;C08G61/02;C08J5/00;C08K3/08;H01M4/134;H01M4/1395;H01M4/62;H01M10/0525 |
主分类号 |
H01M4/04 |
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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