- 专利标题： Carbon quantum dot/carbon coated VSe2 composite material (VSe2@CQD) for potassium ion battery and preparation method thereof
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申请号： US17230010申请日： 2021-04-14
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公开(公告)号： US11417877B1公开(公告)日： 2022-08-16
- 发明人: Miao He , Yefeng Feng , Chenhao Xu , Kaidan Wu , Deping Xiong
- 申请人： GUANGDONG UNIVERSITY OF TECHNOLOGY
- 申请人地址： CN Guangzhou
- 专利权人： GUANGDONG UNIVERSITY OF TECHNOLOGY
- 当前专利权人： GUANGDONG UNIVERSITY OF TECHNOLOGY
- 当前专利权人地址： CN Guangzhou
- 主分类号： H01M4/58
- IPC分类号： H01M4/58 ; H01M4/36 ; H01M4/133 ; H01M4/1393 ; H01M4/587 ; C01B19/00 ; H01M10/054
摘要：
The present invention relates to a preparation method of a carbon quantum dot/carbon coated VSe2 composite material (VSe2@CQD), and belongs to the technical field of electrode material of a potassium ion battery and preparation thereof. By compositing the carbon, carbon quantum dots and vanadium diselenide (VSe2), the three components generate a synergistic effect. The carbon quantum dot/carbon coating can improve the electronic conductivity and lithium ion diffusion rate of the material, and also can inhibit the agglomeration of the vanadium diselenide (VSe2). Therefore, the prepared carbon quantum dot/carbon coated VSe2 composite material (VSe2@CQD) has excellent electrochemical performance and excellent rate performance and cycle stability. The method is simple in process, low in cost, environment-friendly, and suitable for large-scale industrial production.
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