Top > Search of International Patents > NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY USING NEGATIVE ELECTRODE

NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY USING NEGATIVE ELECTRODE

Foreign code F120007000
File No. S2011-0647-N0
Posted date Nov 7, 2012
Country WIPO
International application number 2012JP002579
International publication number WO 2012/144177
Date of international filing Apr 13, 2012
Date of international publication Oct 26, 2012
Priority data
  • P2011-094896 (Apr 21, 2011) JP
Title NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY USING NEGATIVE ELECTRODE
Abstract

In a lithium ion secondary battery which uses a negative electrode active material that is mainly composed of SiOx that is decomposed into Si and SiO2, the negative electrode is configured so as to contain a mixture of first particles, which are composed of SiO-based particles that are composed of silicon oxide represented by SiOx (0.3 = x = 1.6), and second particles that are represented by LiMgPO4. Consequently, change in the volume during the charging and discharging can be reduced due to the second particles and excessive reaction with the electrolyte solution can be suppressed. As a result, the cycle characteristics are improved.

  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • KABUSHIKI KAISHA TOYOTA JIDOSHOKKI,
  • NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY,
  • HAYASHI, KEIICHI,
  • MIYOSHI, MANABU,
  • HIROSE, TAKAYUKI,
  • MURASE, HITOTOSHI,
  • MORIMOTO, HIDEYUKI,
  • TOBISHIMA, SHINICHI
  • Inventor
  • HAYASHI, KEIICHI,
  • MIYOSHI, MANABU,
  • HIROSE, TAKAYUKI,
  • MURASE, HITOTOSHI,
  • MORIMOTO, HIDEYUKI,
  • TOBISHIMA, SHINICHI
IPC(International Patent Classification)
Please contact us by E-mail or facsimile if you have any interests on this patent.

PAGE TOP

close
close
close
close
close
close