发明名称 |
NEGATIVE ELECTRODE MATERIAL FOR A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND MANUFACTURING METHOD THEREFOR |
摘要 |
The present invention provides a negative electrode material for a nonaqueous electrolyte secondary battery which can improve the cycle properties of a lithium ion secondary battery and a method for manufacturing the negative electrode material. The negative electrode material comprises at least two types of powdery alloy materials A and B in which powdery alloy material A contains Co, Sn, and Fe and does not contain Ti and powdery alloy material B contains Fe, Ti, and Sn, and the proportion of the mass of powdery alloy material B to the sum of the mass of powdery alloy material A and the mass of powdery alloy material B is at least 10 mass % and at most 30 mass %. |
申请公布号 |
KR20120116450(A) |
申请公布日期 |
2012.10.22 |
申请号 |
KR20127019567 |
申请日期 |
2010.12.24 |
申请人 |
CHUO DENKI KOGYO CO., LTD.;SUMITOMO METAL INDUSTRIES, LTD. |
发明人 |
NEGI NORIYUKI;NAGATA TATSUO;SAGUCHI AKIHIKO |
分类号 |
H01M4/38;B22F9/04;B22F9/08;H01M4/134 |
主分类号 |
H01M4/38 |
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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