发明公开
EP3444876A1 SILICON NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE PLATE, AND LITHIUM-ION BATTERY
审中-公开
基本信息:
- 专利标题： SILICON NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE PLATE, AND LITHIUM-ION BATTERY
- 申请号：EP17781784.8 申请日：2017-03-23
- 公开(公告)号：EP3444876A1 公开(公告)日：2019-02-20
- 发明人： XIA, Shengan , LI, Hui , WANG, Pinghua
- 申请人： Huawei Technologies Co., Ltd.
- 申请人地址： Huawei Administration Building Bantian Longgang District Shenzhen, Guangdong 518129 CN
- 专利权人： Huawei Technologies Co., Ltd.
- 当前专利权人： Huawei Technologies Co., Ltd.
- 当前专利权人地址： Huawei Administration Building Bantian Longgang District Shenzhen, Guangdong 518129 CN
- 代理机构： Pfenning, Meinig & Partner mbB
- 优先权： CN201610235643 20160415
- 国际公布： WO2017177808 20171019
- 主分类号： H01M4/36
- IPC分类号： H01M4/36 ; H01M4/38 ; H01M4/62 ; H01M10/0525 ; H01M4/134
摘要：
This application provides a silicon negative material, a silicon negative material preparation method, a negative electrode plate, and a lithium-ion battery. The silicon negative material includes a silicon core, and a buffer coating layer and a first coating layer that are coated on a surface of the silicon core, where the first coating layer is a coating layer including a carbon material, and the carbon material includes at least one of the following doping elements: N, P, B, S, O, F, Cl, or H. In embodiments of this application, fast charging performance of the silicon negative material when being used as a negative electrode of a battery is improved.
IPC结构图谱:
| H | 电学 |
| --H01 | 基本电气元件 |
| ----H01M | 用于直接转变化学能为电能的方法或装置，例如电池组 |
| ------H01M4/00 | 电极 |
| --------H01M4/02 | .由活性材料组成或包括活性材料的电极 |
| ----------H01M4/36 | ..作为活性物质、活性体、活性液体的材料的选择 |