Title:
LITHIUM SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2013051210
Kind Code:
A
Abstract:
To improve a nonaqueous electrolyte in a lithium secondary battery including a positive electrode, a negative electrode and a nonaqueous electrolyte including a solute dissolved in a nonaqueous solvent, and prevent deterioration in various characteristics when stored under a high temperature environment.
In a lithium secondary battery including a positive electrode 1, a negative electrode 2 and a nonaqueous electrolyte including a solute dissolved in a nonaqueous solvent, the nonaqueous electrolyte is added with a lithium salt including an oxalate complex as an anion and at least one film forming agent selected from the group consisting of vinylene carbonate, vinyl ethylene carbonate, ethylene sulfite and fluoroethylene carbonate.
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Inventors:
FUJIWARA TOYOKI
TAKEDA KAZUHISA
KITAO HIDEKI
NAKANISHI NAOYA
NOMA TOSHIYUKI
TAKEDA KAZUHISA
KITAO HIDEKI
NAKANISHI NAOYA
NOMA TOSHIYUKI
Application Number:
JP2012244949A
Publication Date:
March 14, 2013
Filing Date:
November 07, 2012
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
H01M10/0567; H01M4/36; H01M4/505; H01M4/525; H01M10/052; H01M10/0568
Domestic Patent References:
| JP2004152753A | 2004-05-27 | |||
| JP2005005115A | 2005-01-06 | |||
| JP2002110144A | 2002-04-12 | |||
| JP2002075369A | 2002-03-15 | |||
| JP2004523073A | 2004-07-29 | |||
| JP2005500432A | 2005-01-06 |
Attorney, Agent or Firm:
Masaaki Ohashi