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Lithium ion secondary battery

  • US 20070048596A1
  • Filed: 08/14/2006
  • Published: 03/01/2007
  • Est. Priority Date: 08/25/2005
  • Status: Abandoned Application
First Claim
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1. A lithium ion secondary battery comprising a positive electrode capable of absorbing and desorbing lithium ions, a negative electrode capable of absorbing and desorbing lithium ions, and a non-aqueous electrolyte, wherein a difference Δ

  • T between a temperature T1 and a temperature T2 is equal to 50°

    C. or greater, where said T1 is a temperature at which the heat generation rate of said positive electrode in a charged state reaches the maximum, and said T2 is a temperature at which the heat generation rate of said negative electrode in a charged state reaches the maximum.

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