Invention Grant
US07985503B2 Method for preparing spherical nickelous hydroxide which is dopped and multiple metal oxides, and lithium ion secondary battery 有权
制备掺杂的球形镍氢氧化物和多种金属氧化物的方法以及锂离子二次电池

  • Patent Title: Method for preparing spherical nickelous hydroxide which is dopped and multiple metal oxides, and lithium ion secondary battery
  • Patent Title (中): 制备掺杂的球形镍氢氧化物和多种金属氧化物的方法以及锂离子二次电池
  • Application No.: US11922908
    Application Date: 2005-06-27
  • Publication No.: US07985503B2
    Publication Date: 2011-07-26
  • Inventor: Long LiCan Ren
  • Applicant: Long LiCan Ren
  • Applicant Address: CN Guangdong
  • Assignee: Shenzhen Bak Battery Co., Ltd
  • Current Assignee: Shenzhen Bak Battery Co., Ltd
  • Current Assignee Address: CN Guangdong
  • Agency: Jacobson Holman PLLC
  • International Application: PCT/CN2005/000931 WO 20050627
  • International Announcement: WO2007/000075 WO 20070104
  • Main IPC: H01M4/13
  • IPC: H01M4/13
Method for preparing spherical nickelous hydroxide which is dopped and multiple metal oxides, and lithium ion secondary battery
Abstract:
The invention relates to a method for preparing multiple metal oxides and intermediate compound, i.e. spherical nickelous hydroxide which is lopped. The intermediate compound is prepared by: mixing bivalent nickel salt, cobalt salt, ammonia water and ammonium salt to form solution containing complex; then adding the said solution containing complex with the mixture solution of metal salt(s) and alkali into reaction vessel in parallel flow, stirring to form precipitate of spherical nickelous hydroxide which is dopped, and washing to remove the impurities. The resulting spherical nickelous hydroxide which is dopped, as an intermediate compound, can be used to produce multiple metal oxides. The resulting multiple metal oxides can be used as anode active material. The spherical nickelous hydroxide has advantages of uniform size and narrow size distribution. The multiple metal oxides has high electric conductivity and cycle performance, particularly, is suitable to be used as anode material.
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