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

外国特許コード F120007000
整理番号 S2011-0647-N0
掲載日 2012年11月7日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2012JP002579
国際公開番号 WO 2012/144177
国際出願日 平成24年4月13日(2012.4.13)
国際公開日 平成24年10月26日(2012.10.26)
優先権データ
  • 特願2011-094896 (2011.4.21) JP
発明の名称 (英語) NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY USING NEGATIVE ELECTRODE
発明の概要(英語)

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.

  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • KABUSHIKI KAISHA TOYOTA JIDOSHOKKI,
  • NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY,
  • HAYASHI, KEIICHI,
  • MIYOSHI, MANABU,
  • HIROSE, TAKAYUKI,
  • MURASE, HITOTOSHI,
  • MORIMOTO, HIDEYUKI,
  • TOBISHIMA, SHINICHI
  • 発明者(英語)
  • HAYASHI, KEIICHI,
  • MIYOSHI, MANABU,
  • HIROSE, TAKAYUKI,
  • MURASE, HITOTOSHI,
  • MORIMOTO, HIDEYUKI,
  • TOBISHIMA, SHINICHI
国際特許分類(IPC)
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