Secondary cell is with nonaqueous electrolytic solution and nonaqueous electrolytic solution secondary battery

Secondary cell is with nonaqueous electrolytic solution and nonaqueous electrolytic solution secondary battery

  • CN 101,617,432 A
  • Filed: 02/05/2008
  • Published: 12/30/2009
  • Est. Priority Date: 02/20/2007
  • Status: Active Application
First Claim
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1. secondary cell nonaqueous electrolytic solution, it is characterized in that, in non-water kind solvent, contain, contain fluoridizing the chain carboxylate and be that the tunicle that benchmark decomposes forms compound shown in the following formula (1) in the described non-water kind solvent in the scope of+1.0~

  • 3.0V with the equilibrium potential of lithium metal and lithium ion as electrolytical lithium salts;

    R1-CH 2-COO-R2(1) In the formula, R1 represents hydrogen or alkyl, and R2 represents alkyl, and the carbon number sum of R1 and R2 is in 3, and when R1 was hydrogen, at least a portion of the hydrogen among the R2 was replaced by fluorine, and when R1 was alkyl, at least a portion of the hydrogen among R1 and/or the R2 was replaced by fluorine.

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