发明名称 |
LITHIUM-ION SECONDARY BATTERY |
摘要 |
A lithium ion secondary battery including a negative electrode having a negative electrode active material layer containing a negative electrode active material and specific amount of a negative electrode binder; a positive electrode having a positive electrode active material layer containing a positive electrode active material and specific amount of a positive electrode binder; an electrolyte solution; and a separator, wherein: the negative electrode active material includes a carbonaceous active material; the negative electrode binder is a polymer obtained by polymerization of a monomer composition for a negative electrode containing specific amount of styrene and an ethylenically unsaturated carboxylic acid; the positive electrode active material contains a specific transition metal elements; the positive electrode binder is a polymer obtained by polymerization of a monomer composition for a positive electrode containing specific amount of acrylonitrile and an ethylenically unsaturated carboxylic acid; and a swelling degree of the positive electrode binder is 2.0 to 15.0 times.
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申请公布号 |
US2012315541(A1) |
申请公布日期 |
2012.12.13 |
申请号 |
US201113580063 |
申请日期 |
2011.03.10 |
申请人 |
SASAKI TOMOKAZU;KOBAYASHI KEI |
发明人 |
SASAKI TOMOKAZU;KOBAYASHI KEI |
分类号 |
H01M10/02;H01M4/485;H01M4/505;H01M4/525;H01M4/583;H01M4/62 |
主分类号 |
H01M10/02 |
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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