发明公开
EP4044284A1 CATHODE ACTIVE MATERIAL FOR LITHIUM-SULFUR BATTERY, PREPARATION METHOD THEREFOR, AND LITHIUM-SULFUR BATTERY COMPRISING SAME
审中-实审
基本信息:
- 专利标题： CATHODE ACTIVE MATERIAL FOR LITHIUM-SULFUR BATTERY, PREPARATION METHOD THEREFOR, AND LITHIUM-SULFUR BATTERY COMPRISING SAME
- 申请号：EP21856126.4 申请日：2021-08-04
- 公开(公告)号：EP4044284A1 公开(公告)日：2022-08-17
- 发明人： KIM, Soohyun , LEE, Jong-Chan , KIM, Kihyun , SOHN, Kwonnam , JEONG, Daun , KOONG, Chan Yeong
- 申请人： LG Energy Solution, Ltd. , Seoul National University R & DB Foundation
- 申请人地址： KR Seoul 07335 Tower 1, 108, Yeoui-daero Yeongdeungpo-gu; KR Seoul 08826 1, Gwanak-ro, Gwanak-Gu,
- 代理机构： Goddar, Heinz J.
- 优先权： KR20200100684 20200811
- 国际公布： WO2022035120 20220217
- 主分类号： H01M4/36
- IPC分类号： H01M4/36 ; H01M4/62 ; H01M4/38 ; H01M10/052 ; H01M4/02
摘要：
The present invention relates to a positive electrode active material for a lithium-sulfur battery, a preparation method thereof, and a lithium-sulfur battery comprising the same, more particularly to a positive electrode active material for a lithium-sulfur battery comprising a particulate structure of a core-shell structure which comprises a core part and a shell part covering the whole surface or a part of the surface of the core part, wherein the core part comprises a sulfur compound, and the shell part comprises a polythiophene acetic acid-polyethylene glycol graft copolymer.
The positive electrode active material for lithium-sulfur battery of the present invention has excellent electrochemical reactivity and adsorbs lithium polysulfide to improve capacity and lifetime characteristics of the lithium-sulfur battery.
The positive electrode active material for lithium-sulfur battery of the present invention has excellent electrochemical reactivity and adsorbs lithium polysulfide to improve capacity and lifetime characteristics of the lithium-sulfur battery.
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 |