| 发明名称 |
NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERIES AND USE THEREOF |
| 摘要 |
The present invention relates to a negative electrode material for a lithium ion battery, made of a composite material comprising silicon-containing particles, artificial graphite particles and a carbon coating layer, wherein the silicon-containing particles are silicon particles having a SiOx layer (0<x≦2) on a particle surface, have an oxygen content ratio of 1 mass % or more and 18 mass % or less, and mainly comprise particles having a primary particle diameter of 200 nm or less; and the artificial graphite particles have a scale-like shape. By using the negative electrode material, a lithium ion battery having a high capacitance and excellent charge-discharge cycle characteristics can be produced. |
| 申请公布号 |
US2016190552(A1) |
申请公布日期 |
2016.06.30 |
| 申请号 |
US201414909762 |
申请日期 |
2014.08.04 |
| 申请人 |
SHOWA DENKO K.K. ;UMICORE |
发明人 |
MURATA Hirokazu;TAKEUCHI Masataka;ISHII Nobuaki;SIAU Sam;MARX Nicolas;PUT Stijn |
| 分类号 |
H01M4/36;H01M4/48;H01M4/38;H01M4/62;H01M10/0525;H01M4/587 |
主分类号 |
H01M4/36 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A negative electrode material for a lithium ion battery, made of a composite material comprising silicon-containing particles, artificial graphite particles and a carbon coating layer, wherein the silicon-containing particles are silicon particles having a SiOx layer (0<x≦2) on a surface of the particle, have an oxygen content ratio of 1 mass % or more and 18 mass % or less, and mainly comprise particles having a primary particle diameter of 200 nm or less; and the artificial graphite particles have a scale-like shape. |
| 地址 |
Tokyo JP |
