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Title:
NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY
Document Type and Number:
Japanese Patent JPH11214001
Kind Code:
A
Abstract:

To provide a nonaqueous electrolytic solution secondary battery capable of attaining an high energy density by ensuring a good cycle performance, even if a graphite material is applied as a negative electrode.

This nonaqueous electrolytic solution secondary battery consists of at least a positive electrode, consisting of a transition metallic oxide including lithium, a negative electrode made of a graphite material, and nonaqueous electrolytic solution including lithium ions. The graphite material for the negative electrode is used as a material with a spacing d(002) of 3.38 or less for (002) surface, and at least one kind selected from among vinyl sulfones shown in formula 1 below and vinyl esters shown in formula 2 below is contained by 1 to 10 (vol.%) in the nonaqueous electrolytic solution. Formula 1: CH2=CHSO2 R1 (R1 is methyl group or ethyl group.) Formula 2: CH2= CHCO2 R2 (R2 is methyl group or ethyl group.).


Inventors:
SUZUKI TAKASHI
NAGURA HIDEAKI
Application Number:
JP1179098A
Publication Date:
August 06, 1999
Filing Date:
January 23, 1998
Export Citation:
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Assignee:
FUJI ELECTROCHEMICAL CO LTD
International Classes:
C01B31/04; H01M4/587; H01M10/05; H01M10/0525; H01M10/0567; (IPC1-7): H01M4/58; C01B31/04; H01M4/02; H01M10/40
Attorney, Agent or Firm:
Kensuke Isshiki (2 outside)