公开(公告)号：EP2689484A1

公开(公告)日：2014-01-29

申请号：EP12796088.8

申请日：2012-06-06

申请人： Shenzhen BYD Auto R&D Company Limited ,  BYD Company Limited

发明人： LIN, Miaoyun ,  YOU, Zhen ,  YU, Weicheng ,  LUO, Mingjun ,  LIU, Huiquan

IPC分类号： H01M2/16

CPC分类号： H01M2/162 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/0525

摘要： A battery separator and a method for preparing the same are provided. The battery separator comprises: a substrate which is a polyvinylidene fluoride non-woven fabric; and a coating layer formed on each surface of the substrate, in which the material of the coating layer comprises an ultra-high molecular weight polyethylene and a linear low density polyethylene.

公开(公告)号：EP3316356B1

公开(公告)日：2019-09-04

申请号：EP16850252.4

申请日：2016-09-08

申请人： BYD Company Limited

发明人： ZHANG, Kai ,  LIU, Huiquan

IPC分类号： H01M4/36 ,  H01M4/583 ,  H01M10/052 ,  H01M4/52 ,  H01M4/587 ,  H01M4/62 ,  H01M4/38 ,  H01M4/02 ,  H01M10/0525

公开(公告)号：EP2367880B1

公开(公告)日：2013-08-07

申请号：EP09832898.2

申请日：2009-11-18

申请人： BYD Company Limited

发明人： LUO, Mingjun ,  YOU, Zhen ,  LIU, Huiquan

IPC分类号： C08L23/06 ,  C08L23/04 ,  C08L23/02 ,  C08J5/18

CPC分类号： C08J5/18 ,  C08J2323/06 ,  C08K5/01 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2207/066 ,  C08L2207/068 ,  C08L2207/32 ,  Y10T428/249953

摘要： A microporous film comprises a first component comprising a super high molecular weight polyolefin resin, wherein the weight-average molecular weight of the super high molecular weight polyolefin is about 1×106 to about 6×106. The microporous film also comprises a second component comprising a polyolefin resin, wherein the weight-average molecular weight of the polyolefin resin is less than about 5×105. A method of producing a microporous film comprises melting a first polyolefin resin which is a super high molecular weight polyolefin resin in a solvent to form a first mixture, and adding to the first mixture a second polyolefin resin having a weight-average molecular weight of the less than about 5×105 to form a second mixture. The method also comprises forming the second mixture into a film, and removing the solvent from the film to form the microporous film

公开(公告)号：EP3316356A1

公开(公告)日：2018-05-02

申请号：EP16850252.4

申请日：2016-09-08

申请人： BYD Company Limited

发明人： ZHANG, Kai ,  LIU, Huiquan

IPC分类号： H01M4/36 ,  H01M4/583 ,  H01M10/0525

CPC分类号： H01M4/583 ,  H01M4/366 ,  H01M4/387 ,  H01M4/52 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

摘要： The present disclosure relates to an anode material having porous core-shell structure, the anode material includes a core formed of at least one carbonaceous material selected from a group consisting of graphite, hard carbon and soft carbon, and a carbon shell coated on surface of the core. The carbon shell contains amorphous carbon, cobalt element and tin element, and has a porous structure having a porosity greater than 10%. The present disclosure further relates to a method of preparing the anode material having porous core-shell structure, and a battery of which a negative electrode contains the anode material having porous core-shell structure.

摘要翻译： 本发明涉及一种具有多孔核 - 壳结构的阳极材料，所述阳极材料包括由选自石墨，硬碳和软碳组成的组中的至少一种碳质材料形成的核以及涂覆在所述核壳结构的表面上的碳壳 核心。 碳壳包含无定形碳，钴元素和锡元素，并且具有孔隙率大于10％的多孔结构。 本发明还涉及一种制备具有多孔核 - 壳结构的负极材料的方法以及一种负极包含具有多孔核 - 壳结构的负极材料的电池。

公开(公告)号：EP1875536A1

公开(公告)日：2008-01-09

申请号：EP06722382.6

申请日：2006-04-20

申请人： Byd Company Limited

发明人： RONG, Qiang ,  JIANG, Zhanfeng ,  LIU, Huiquan ,  HU, Gang ,  SUN, Meihong

IPC分类号： H01M4/58 ,  H01M4/04

CPC分类号： H01M4/1391 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  Y10T29/4911

摘要： A battery cathode comprising a current collector and a cathode material coated on and/or filled in the current collector, said cathode material comprising a cathode active substance, a conductive additive and an adhesive, wherein said cathode material is coated with a layer of lithium cobaltate on the surface thereof, and the content of lithium cobaltate is 0.1-15wt%(weight percent) based on the weight of the cathode active substance. The lithium ion battery using the cathode provided by the present invention has a higher specific capacity and improved cycling performance.

公开(公告)号：EP1875536B1

公开(公告)日：2012-06-20

申请号：EP06722382.6

申请日：2006-04-20

申请人： Byd Company Limited

发明人： RONG, Qiang ,  JIANG, Zhanfeng ,  LIU, Huiquan ,  HU, Gang ,  SUN, Meihong

IPC分类号： H01M4/505 ,  H01M4/525 ,  H01M4/1391 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/131

CPC分类号： H01M4/1391 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  Y10T29/4911

摘要： A battery cathode comprising a current collector and a cathode material coated on and/or filled in the current collector, said cathode material comprising a cathode active substance, a conductive additive and an adhesive, wherein said cathode material is coated with a layer of lithium cobaltate on the surface thereof, and the content of lithium cobaltate is 0.1-15wt%(weight percent) based on the weight of the cathode active substance. The lithium ion battery using the cathode provided by the present invention has a higher specific capacity and improved cycling performance.

公开(公告)号：EP2367880A1

公开(公告)日：2011-09-28

申请号：EP09832898.2

申请日：2009-11-18

申请人： BYD Company Limited

发明人： LUO, Mingjun ,  YOU, Zhen ,  LIU, Huiquan

IPC分类号： C08L23/06 ,  C08L23/04 ,  C08L23/02

CPC分类号： C08J5/18 ,  C08J2323/06 ,  C08K5/01 ,  C08L23/04 ,  C08L23/06 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2207/066 ,  C08L2207/068 ,  C08L2207/32 ,  Y10T428/249953

摘要： A microporous film comprises a first component comprising a super high molecular weight polyolefin resin, wherein the weight-average molecular weight of the super high molecular weight polyolefin is about 1×106 to about 6×106. The microporous film also comprises a second component comprising a polyolefin resin, wherein the weight-average molecular weight of the polyolefin resin is less than about 5×105. A method of producing a microporous film comprises melting a first polyolefin resin which is a super high molecular weight polyolefin resin in a solvent to form a first mixture, and adding to the first mixture a second polyolefin resin having a weight-average molecular weight of the less than about 5×105 to form a second mixture. The method also comprises forming the second mixture into a film, and removing the solvent from the film to form the microporous film