基本信息:
- 专利标题： 一种基于C/Ti4O7复合纳米纤维的锂硫电池正极材料及其制备方法
- 专利标题（英）：C/Ti4O7 composite nanofiber based lithium-sulfur battery positive electrode material and preparation method therefor
- 申请号：CN201511027130.5 申请日：2015-12-31
- 公开(公告)号：CN105489863A 公开(公告)日：2016-04-13
- 发明人： 姚山山 , 唐豪 , 沈湘黔 , 侯金利 , 吴潇 , 景茂祥 , 钱昕晔 , 饶德伟 , 廖达前 , 习小明 , 肖可颂
- 申请人： 长沙矿冶研究院有限责任公司
- 申请人地址： 湖南省长沙市岳麓区麓山南路966号
- 专利权人： 长沙矿冶研究院有限责任公司
- 当前专利权人： 长沙矿冶研究院有限责任公司
- 当前专利权人地址： 湖南省长沙市岳麓区麓山南路966号
- 代理机构： 长沙朕扬知识产权代理事务所
- 代理人： 杨斌
- 主分类号： H01M4/36
- IPC分类号： H01M4/36 ; H01M4/485 ; H01M4/587
The invention discloses a C/Ti4O7 composite nanofiber based lithium-sulfur battery positive electrode material. The lithium-sulfur battery positive electrode material is compounded by elemental sulfur and C/Ti4O7 composite nanofiber, wherein the C/Ti4O7 composite nanofiber adopts a core-shell structure; and the Ti4O7 is taken as the core while porous carbon is taken as the shell. The preparation method comprises the steps of preparing the C/Ti4O7 composite nanofiber by an electrostatic spinning process; mixing the C/Ti4O7 composite nanofiber with the elemental sulfur; and putting the mixture into a sealed container and performing thermal treatment at a temperature of 150-155 DEG C for 12-24h to obtain the positive electrode material. The positive electrode material has a porous channel structure formed by the porous carbon, so that rapid polysulfide absorption can be realized, and the cycling life of the lithium-sulfur battery can be prolonged; and in addition, due to the high conductivity of Ti4O7, the utilization rate of sulfur is improved, so that the cycling performance of the lithium-sulfur battery is relatively high.
公开/授权文献:
- CN105489863B 一种基于C/Ti4O7复合纳米纤维的锂硫电池正极材料及其制备方法 公开/授权日：2017-11-17
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 |