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    A PROCESS FOR PREPARING A POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY
    1.
    发明申请
    A PROCESS FOR PREPARING A POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY 审中-公开
    一种制备锂离子电池正极电极材料的方法

    公开(公告)号：WO2007048283A1

    公开(公告)日：2007-05-03

    申请号：PCT/CN2006/000316

    申请日：2006-03-03

    Applicant: BYD COMPANY LIMITED ,  XIAO, Feng ,  ZHANG, Jianchang ,  CAO, Wenyu ,  LIU, Dengwei

    Inventor： XIAO, Feng ,  ZHANG, Jianchang ,  CAO, Wenyu ,  LIU, Dengwei

    IPC: H01M4/04 ,  H01M4/48 ,  H01M10/38 ,  C01G45/02 ,  C01G51/04 ,  C01G53/04

    CPC classification number: H01M4/622 ,  C01G45/1228 ,  C01G51/006 ,  C01G51/50 ,  C01G53/006 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2004/51 ,  C01P2006/11 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M4/621 ,  H01M2004/021

    Abstract: A process for preparing lithium-nickel-manganese-cobalt composite oxide used as a positive electrode material for the lithium ion battery, comprising subjecting a mixture containing a lithium compound and nickel-manganese-cobalt hydroxide to a first-stage sintering and a second-stage sintering, wherein said process further comprises adding a binder and/or binder solution after the first-stage sintering, and the mixture of the binder and/or binder solution and the product of first-stage sintering is sintered in said second-stage sintering. The tap density and volume specific capacity of the positive electrode material lithium-nickel-manganese-cobalt composite oxide prepared by the present process, come up to 2.4 g/cm 3 and 416.4 mAh/cm 3 , respectively. Besides, the positive electrode material lithium-nickel-manganese-cobalt composite oxide prepared by the present process possesses the advantages of high specific capacity and good cycle stability.

    Abstract translation: 一种用作锂离子电池正极材料的锂镍锰钴复合氧化物的制备方法，包括将含有锂化合物和镍锰 - 氢氧化钴的混合物进行第一阶段烧结， 其中所述方法还包括在第一阶段烧结之后添加粘合剂和/或粘合剂溶液，并且在所述第二阶段烧结中将粘合剂和/或粘合剂溶液与第一阶段烧结产物的混合物烧结 。 通过本方法制备的正极材料锂镍锰钴复合氧化物的振实密度和体积比容量达到2.4g / cm 3和416.4mAh / cm 3， 3 。 此外，通过本方法制备的正极材料锂镍锰钴复合氧化物具有高比容量和良好的循环稳定性的优点。

    DRY PROCESS-BASED BATTERY POLE PIECE AND BATTERY
    4.
    发明公开
    DRY PROCESS-BASED BATTERY POLE PIECE AND BATTERY 审中-公开

    公开(公告)号：EP4333097A1

    公开(公告)日：2024-03-06

    申请号：EP22841451.2

    申请日：2022-07-14

    Applicant: BYD Company Limited

    Inventor： HU, Yiwei ,  GUO, Zizhu ,  PAN, Yi ,  ZHANG, Jianchang ,  SUN, Huajun

    IPC: H01M4/13

    Abstract: A dry battery electrode plate and a battery are provided. The dry battery electrode plate includes: a metal current collector and a self-supporting electrode film. The metal current collector is provided with pores. The self-supporting electrode film includes a first electrode film and a second electrode film. The first electrode film is arranged on one side of the metal current collector. The second electrode film is arranged on one side of the metal current collector facing away from the first electrode film. The first electrode film and the second electrode film are configured to be press-fit connected by an external force. The first electrode film and the second electrode film are attached to the metal current collector. The first electrode film and the second electrode film are connected to each other at positions corresponding to the pores.

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