Title:
リチウム二次電池及びそれに用いられる非水電解液
Document Type and Number:
Japanese Patent JP5708491
Kind Code:
B2
Abstract:
Disclosed are: a lithium secondary battery which comprises a positive electrode containing, as a positive electrode active material, a lithium-containing metal oxide that contains at least one metal element selected from nickel, manganese and iron, a negative electrode containing, as a negative electrode active material, a carbon material capable of absorbing and releasing lithium, and a non-aqueous electrolytic solution comprising a non-aqueous solvent and an electrolyte salt dissolved in the non-aqueous solvent, wherein the lithium secondary battery is characterized in that the non-aqueous electrolytic solution contains 0.1 to 5 mass% of 1,2,3,4-tetrahydronaphthalene and 0.1 to 5 mass% of a biphenyl derivative and/or an alkyl phenol derivative; and a non-aqueous electrolytic solution for use in the lithium secondary battery. The lithium secondary battery can have an excellent post-low-temperature-cycle recovery rate even after the battery is exposed to a high-temperature environment.
Inventors:
Koji Abe
Application Number:
JP2011536128A
Publication Date:
April 30, 2015
Filing Date:
October 09, 2010
Export Citation:
Assignee:
Ube Industries,Ltd.
International Classes:
H01M10/0567; H01M4/133; H01M4/505; H01M4/525; H01M4/58; H01M4/587; H01M10/0525
Domestic Patent References:
| JP2004234948A | 2004-08-19 | |||
| JP2005085608A | 2005-03-31 | |||
| JP2005203265A | 2005-07-28 | |||
| JP2003257479A | 2003-09-12 | |||
| JP2004234948A | 2004-08-19 | |||
| JP2005085608A | 2005-03-31 | |||
| JP2005203265A | 2005-07-28 | |||
| JP2003257479A | 2003-09-12 |
Attorney, Agent or Firm:
Makoto Kataoka
Tamotsu Otani
Tamotsu Otani