发明名称 |
Lithium ion secondary battery |
摘要 |
A lithium ion secondary battery includes a positive electrode capable of absorbing and desorbing lithium ion, a negative electrode capable of absorbing and desorbing lithium ion, a porous film interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, the porous film being adhered to a surface of at least the negative electrode. The porous film includes an inorganic filler and a first binder: The content of the first binder in the porous film is 1.5 to 8 parts by weight per 100 parts by weight of the filler: The first binder includes a first rubber including an acrylonitrile unit: The first rubber is water-insoluble and has a decomposition temperature of 250° C. or higher. The negative electrode includes a negative electrode active material capable of absorbing and desorbing lithium ion and a second binder, and the second binder includes a second rubber particle and a water-soluble polymer.
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申请公布号 |
US2006194116(A1) |
申请公布日期 |
2006.08.31 |
申请号 |
US20060568536 |
申请日期 |
2006.02.17 |
申请人 |
SUZUKI KOHEI;OHATA TSUMORU;NAKAJIMA JUNJI;FUJINO AKIKO;IKUTA SHIGEO;HAYASHI TETSUYA;FUKUMOTO YUSUKE;KASAMATSU SHINJI |
发明人 |
SUZUKI KOHEI;OHATA TSUMORU;NAKAJIMA JUNJI;FUJINO AKIKO;IKUTA SHIGEO;HAYASHI TETSUYA;FUKUMOTO YUSUKE;KASAMATSU SHINJI |
分类号 |
H01M2/16;H01M2/18;H01M4/133;H01M4/134;H01M4/62;H01M10/052;H01M10/0525;H01M10/36;H01M10/42 |
主分类号 |
H01M2/16 |
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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