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Lithium secondary battery and non-aqueous electrolytic solution

  • US 7,981,552 B2
  • Filed: 11/30/2007
  • Issued: 07/19/2011
  • Est. Priority Date: 10/03/2000
  • Status: Active Grant
First Claim
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1. A lithium secondary battery comprising:

  • a positive electrode comprising a compound metal oxide comprising lithium and cobalt or nickel;

    a negative electrode comprising a lithium metal, a lithium alloy or a material capable occluding and releasing lithium; and

    a non-aqueous electrolyte solution comprising an electrolyte in a non-aqueous solvent, in which the non-aqueous electrolyte solution contains an organic compound in an amount of 1 to 5 weight %, said organic compound being a combination of a cyclohexylbenzene and tert-pentylbenzene, 1,3-di-tert-pentylbenzene or 1,4-di-tert-pentyl benzene.

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