发明名称 |
NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES |
摘要 |
A negative electrode active material for nonaqueous secondary batteries is disclosed. The active material contains a silicon solid solution having one or more than one of a group 3 semimetal or metal element, a group 4 semimetal or metal element except silicon, and a group 5 nonmetal or semimetal element incorporated in silicon as a solute element. The solute element is present more on the crystal grain boundaries of the silicon solid solution than inside the grains. |
申请公布号 |
EP2725640(A4) |
申请公布日期 |
2015.02.18 |
申请号 |
EP20120804217 |
申请日期 |
2012.06.25 |
申请人 |
MITSUI MINING AND SMELTING CO., LTD. |
发明人 |
IDE, HITOHIKO;INOUE, DAISUKE;KAGEI, SHINYA;SHIBAMURA, NATSUMI;TABIRA, YASUNORI |
分类号 |
H01M4/38;C01B33/02;H01M4/134;H01M10/0525 |
主分类号 |
H01M4/38 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|