发明申请
- 专利标题: POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY
- 专利标题(中): 用于锂二次电池的正极电极材料
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申请号: US14913234申请日: 2014-08-21
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公开(公告)号: US20160204424A1公开(公告)日: 2016-07-14
- 发明人: Takehiko SAWAI , Shinji SAITO , Kazunori URAO , Kazuma HANAI , Karim ZAGHIB , Abdelbast GUERFI , Martin DONTIGNY
- 申请人: HYDRO-QUÉBEC , SEI CORP.
- 申请人地址: CA Montreal, Quebec, OT JP Tsu City, Mie, OT
- 专利权人: HYDRO-QUEBEC,SEI CORP.
- 当前专利权人: HYDRO-QUEBEC,SEI CORP.
- 当前专利权人地址: CA Montreal, Quebec, OT JP Tsu City, Mie, OT
- 国际申请: PCT/CA2014/050803 WO 20140821
- 主分类号: H01M4/36
- IPC分类号: H01M4/36 ; H01M4/136 ; H01M4/1391 ; H01M4/1397 ; H01M4/525 ; H01M4/505 ; H01M4/58 ; H01M4/62 ; H01M4/66 ; H01M4/04 ; H01M10/0525 ; H01M10/0569 ; H01M10/0568 ; H01M4/587 ; H01M4/131
摘要:
A positive electrode material is used to produce a positive electrode of a lithium secondary battery, the positive electrode material being a composite lithium material that includes a first lithium compound and a second lithium compound. For instance, the first lithium compound is in the form of particles and comprises at least one compound selected from a layered lithium compound and a spinel-type lithium compound. Preferably, the second lithium compound comprises at least one compound selected from a lithium-containing phosphate compound and a lithium-containing silicate compound. An amorphous carbon material layer and/or graphene-structured carbon material layer is present on the entire surface of the first lithium compound and the second lithium compound. The second lithium compound forms a thin-film layer on part or the entirety of the carbon material layer present on the surface of the first lithium compound particles.
公开/授权文献
- US10403893B2 Positive electrode material for lithium secondary battery 公开/授权日:2019-09-03
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