发明名称 |
NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES |
摘要 |
A negative electrode for nonaqueous electrolyte secondary batteries including a negative electrode current collector and a negative electrode mixture layer placed on the negative electrode current collector. The negative electrode mixture layer is a layer of a mixture of a negative electrode active material, a binding agent, and a conductive agent. The binding agent includes a binding agent A made of a rubber polymeric compound and a binding agent B made of a water-soluble polymeric compound. In the case where a through-thickness cross section of the negative electrode mixture layer is halved into a current collector-side region and a surface-side region, the amount of the binding agent A in the current collector-side region is larger than the amount of the binding agent A in the surface-side region and the amount of the conductive agent in the current collector-side region is larger than the amount of the conductive agent in the surface-side region. |
申请公布号 |
US2016329557(A1) |
申请公布日期 |
2016.11.10 |
申请号 |
US201415107696 |
申请日期 |
2014.12.12 |
申请人 |
SANYO ELECTRIC CO., LTD. |
发明人 |
Sugimori Masanori;Yanagida Katsunori |
分类号 |
H01M4/36;H01M4/134;H01M10/0525;H01M4/62;H01M4/48 |
主分类号 |
H01M4/36 |
代理机构 |
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代理人 |
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主权项 |
1. A negative electrode for nonaqueous electrolyte secondary batteries, comprising a negative electrode current collector and a negative electrode mixture layer placed on the negative electrode current collector,
wherein the negative electrode mixture layer is a layer of a mixture of a negative electrode active material, a binding agent, and a conductive agent; the binding agent includes a binding agent A made of a rubber polymeric compound and a binding agent B made of a water-soluble polymeric compound; and in the case where a through-thickness cross section of the negative electrode mixture layer is halved into a current collector-side region and a surface-side region, the amount of the binding agent A in the current collector-side region and the amount of the conductive agent in the current collector-side region are larger than the amount of the binding agent A in the surface-side region and the amount of the conductive agent in the surface-side region, respectively. |
地址 |
Daito-shi JP |