发明公开
EP3036785A1 POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY
有权
POSITIVELEKTRODENMATERIALFÜRLITHIUMSEKUNDÄRBATTERIE
- 专利标题: POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY
- 专利标题(中): POSITIVELEKTRODENMATERIALFÜRLITHIUMSEKUNDÄRBATTERIE
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申请号: EP14837607.2申请日: 2014-08-21
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公开(公告)号: EP3036785A1公开(公告)日: 2016-06-29
- 发明人: SAWAI, Takehiko , SAITO, Shinji , URAO, Kazunori , HANAI, Kazuma , ZAGHIB, Karim , GUERFI, Abdelbast , DONTIGNY, Martin
- 申请人: Hydro-Québec , Sei Corporation
- 申请人地址: 75 René-Lévesque Blvd. West Montréal, QC H2Z 1A4 CA
- 专利权人: Hydro-Québec,Sei Corporation
- 当前专利权人: Hydro-Québec,Sei Corporation
- 当前专利权人地址: 75 René-Lévesque Blvd. West Montréal, QC H2Z 1A4 CA
- 代理机构: Lang, Johannes
- 优先权: US201361868296P 20130821
- 国际公布: WO2015024127 20150226
- 主分类号: H01M4/13
- IPC分类号: H01M4/13 ; B60K1/04 ; B60L11/18 ; H01M10/052 ; H01M10/056 ; H01M4/139 ; H01M2/16
摘要:
A positive electrode material which can achieve high output, high energy density, and/or a long cycle life required for on-vehicle applications is discussed. The 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
- EP3036785B1 POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY 公开/授权日:2018-06-27
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