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CN105940533A 正极活性材料粉末、包含正极活性材料粉末的正极以及二次电池 失效 - 权利终止

  • Patent Title: 正极活性材料粉末、包含正极活性材料粉末的正极以及二次电池
  • Patent Title (English): Positive-electrode active material powder, positive electrode containing positive-electrode active material powder, and secondary battery
  • Application No.: CN201480074267.3
    Application Date: 2014-12-12
  • Publication No.: CN105940533A
    Publication Date: 2016-09-14
  • Inventor: 松田基史
  • Applicant: 株式会社三德
  • Applicant Address: 日本兵库县
  • Assignee: 株式会社三德
  • Current Assignee: 株式会社三德
  • Current Assignee Address: 日本兵库县
  • Agency: 北京泛华伟业知识产权代理有限公司
  • Agent 王勇; 李科
  • Priority: 2013-257908 2013.12.13 JP
  • International Application: PCT/JP2014/082996 2014.12.12
  • International Announcement: WO2015/088007 JA 2015.06.18
  • Date entered country: 2016-07-27
  • Main IPC: H01M4/525
  • IPC: H01M4/525 ;  H01M4/36 ;  H01M4/505
正极活性材料粉末、包含正极活性材料粉末的正极以及二次电池
Abstract:
本发明提供了一种正极活性材料粉末或正极，其能够改善非水电解质可充电电池在高压下的循环特性并且表现出优越的容量保持率。正极活性材料粉末具有化学式(I)表示的组成：Lix‑wNawCo1‑yMyO2+z(0.950≤x≤1.100，0
Abstract(English):

Provided is a positive-electrode active material powder or positive electrode that can improve the cycling characteristics of a non-aqueous electrolyte secondary battery that is under high voltage and can demonstrate excellent capacity retention. The positive-electrode active material powder of the present invention has a composition indicated by formula (I), Lix-wNawCo1-yMyO2+z (wherein 0.950<=x<=1.100, 0

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