发明名称 |
NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY |
摘要 |
Provided are negative electrode for lithium ion secondary batteries, which is capable of realizing a lithium ion secondary battery having characteristics such as stable output and stable capacity, and a lithium ion secondary battery having characteristics such as stable output and stable capacity. The negative electrode for lithium ion secondary batteries includes a laminated body of a negative electrode material layer that is mainly constituted by a carbonaceous material, and a negative electrode current collector. When the negative electrode material layer is in a dry state, a limit radius of curvature of a negative electrode is 15 mm or less. Content of the hard carbon in the carbonaceous material is preferably 5% by weight to 45% by weight. |
申请公布号 |
EP2765635(A1) |
申请公布日期 |
2014.08.13 |
申请号 |
EP20120838909 |
申请日期 |
2012.09.27 |
申请人 |
SUMITOMO BAKELITE CO., LTD. |
发明人 |
SASAKI, TATSURO;ICHIKAWA, YUICHI |
分类号 |
H01M4/133;H01M4/36;H01M4/587;H01M10/0525;H01M10/0587 |
主分类号 |
H01M4/133 |
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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