发明名称 |
NEGATIVE ELECTRODE MATERIAL FOR SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME |
摘要 |
PROBLEM TO BE SOLVED: To provide a negative electrode material for a secondary battery, reducing and suppressing an expansion coefficient of a silicon-containing high-capacity alloy material and capable of achieving favorable charge/discharge cycle characteristics.SOLUTION: An alloy particle includes: one or two or more kinds of transition metals which are selected from a metal group belonging to transition metals and which have electron conductivity and hardly react with a lithium atom; and silicon. The alloy particle includes amorphous silicon and microcrystals of a silicide comprising the silicon and the transition metals, and has a structure in which microcrystals of a silicide are dotted in the amorphous silicon.SELECTED DRAWING: Figure 2 |
申请公布号 |
JP2016225143(A) |
申请公布日期 |
2016.12.28 |
申请号 |
JP20150110531 |
申请日期 |
2015.05.29 |
申请人 |
LG CHEM LTD |
发明人 |
MATSUBARA KEIKO;IGARASHI YOSHIYUKI |
分类号 |
H01M4/38;B22F1/00;B22F9/02;C22C45/00;H01M4/134;H01M4/36;H01M4/62 |
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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