| 发明名称 |
COMPOSITE NEGATIVE ACTIVE MATERIAL, NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING THE COMPOSITE NEGATIVE ACTIVE MATERIAL, AND METHOD OF PREPARING THE COMPOSITE NEGATIVE ACTIVE MATERIAL |
| 摘要 |
A composite negative active material, and a negative electrode and a lithium secondary battery that include the composite negative active material, and a method of preparing the composite negative active material are disclosed. The composite negative active material includes: a core including a silicon material and a coating layer disposed on the core, wherein the coating layer includes a water-insoluble polymer composite in which at least one anionic component is chemically bonded to a water-soluble polymer, thereby improving lifespan characteristics of the composite negative active material. |
| 申请公布号 |
US2017092939(A1) |
申请公布日期 |
2017.03.30 |
| 申请号 |
US201615072547 |
申请日期 |
2016.03.17 |
| 申请人 |
Samsung Electronics Co., Ltd. ;Samsung SDI Co., Ltd. |
发明人 |
Kim Guesung;Mun Jinsoo;Jung Heechul |
| 分类号 |
H01M4/36;H01M4/60;H01M4/58;H01M4/587;H01M10/0569;H01M4/134;H01M4/1395;H01M4/04;H01M10/0525;H01M10/0568;H01M4/38;H01M4/62 |
主分类号 |
H01M4/36 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A composite negative active material comprising:
a core comprising silicon; and a coating layer disposed on the core, wherein the coating layer comprises a water-insoluble polymer composite comprising at least one anionic component selected from F−, PO43−, PF6−, BO33−, and BF4−, wherein the at least one anionic component is chemically bonded to a water-soluble polymer. |
| 地址 |
Suwon-si KR |
