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公开(公告)号:US20170283524A1
公开(公告)日:2017-10-05
申请号:US15627255
申请日:2017-06-19
发明人: Li Wang , Xiang-Ming He , Yu-Mei Ren , Fang-Xu Wu , Jian-Jun Li , Yu-Ming Shang , Yuan-Qing Li , Shu-Hui Wang , Tuan-Wei Li
CPC分类号: C08F8/48 , H01M4/0471 , H01M4/136 , H01M4/1397 , H01M4/362 , H01M4/38 , H01M4/602 , H01M4/62 , H01M10/052 , H01M2004/028
摘要: A method for making a sulfur based cathode composite material is disclosed. Polyacrylonitrile and elemental sulfur are dissolved together in a first solvent to form a first solution. An additive is added to the first solution to mix with the polyacrylonitrile and the elemental sulfur. The additive is at least one of metal and metal sulfide. An environment in which the polyacrylonitrile and the elemental sulfur are located in is changed to reduce a solubility of the polyacrylonitrile and the elemental sulfur in a changed environment to simultaneously precipitate the polyacrylonitrile and the elemental sulfur, thereby forming a precipitate having the additive. The precipitate is heated to chemically react the polyacrylonitrile with the elemental sulfur.
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公开(公告)号:US20170288229A1
公开(公告)日:2017-10-05
申请号:US15627276
申请日:2017-06-19
发明人: Li Wang , Xiang-Ming He , Yu-Mei Ren , Jian-Jun Li , Fang-Xu Wu , Yu-Ming Shang , Yuan-Qing Li , Tuan-Wei Li , Shu-Hui Wang
CPC分类号: H01M4/602 , C08F120/44 , C08J3/203 , C08J3/212 , C08J2333/20 , C08K3/04 , C08K3/041 , C08K3/06 , C08K2201/001 , C08K2201/005 , H01M4/0404 , H01M4/137 , H01M4/1399 , H01M4/362 , H01M4/38 , H01M4/382 , H01M4/625 , H01M10/052 , H01M2004/028 , C08L33/20
摘要: A method for making a sulfur based cathode composite material is disclosed. Polyacrylonitrile and elemental sulfur are dissolved together in a first solvent to form a first solution. An electrically conductive carbonaceous material is added to the first solution to mix with the polyacrylonitrile and the elemental sulfur. An environment in which the polyacrylonitrile and the elemental sulfur are located in is changed to reduce a solubility of the polyacrylonitrile and the elemental sulfur in a changed environment to simultaneously precipitate the polyacrylonitrile and the elemental sulfur, thereby forming a precipitate having the electrically conductive carbonaceous material. The precipitate is heated to chemically react the polyacrylonitrile with the elemental sulfur. A sulfur based cathode composite material is also disclosed.
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