Invention Application
US20130136987A1 POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME 有权
用于二次电池的正极电极活性材料和使用该电极的二次电池

  • Patent Title: POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME
  • Patent Title (中): 用于二次电池的正极电极活性材料和使用该电极的二次电池
  • Application No.: US13810506
    Application Date: 2011-07-25
  • Publication No.: US20130136987A1
    Publication Date: 2013-05-30
  • Inventor: Makiko UeharaTakehiro Noguchi
  • Applicant: Makiko UeharaTakehiro Noguchi
  • Applicant Address: JP Kanagawa
  • Assignee: NEC ENERGY DEVICES, LTD.
  • Current Assignee: NEC ENERGY DEVICES, LTD.
  • Current Assignee Address: JP Kanagawa
  • Priority: JP2010-172317 20100730
  • International Application: PCT/JP2011/066864 WO 20110725
  • Main IPC: H01M4/485
  • IPC: H01M4/485
POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME
Abstract:
Provided is a lithium ion positive electrode active material for a secondary battery that can realize a high operating voltage and a high capacity while suppressing capacity drop with cycles by using a low-cost material. A positive electrode active material for a secondary battery, which is a lithium manganese composite oxide represented by the following general formula (I) Lia(MxMn2-x-yYy)(O4-wZw)   (I) wherein in the formula (I), 0.5≦x≦1.2, 0
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