Title:
Nonaqueous electrolyte rechargeable battery
Document Type and Number:
Japanese Patent JP5989634
Kind Code:
B2
Abstract:
A nonaqueous electrolyte secondary battery has a positive electrode plate containing a positive electrode active material capable of reversibly absorbing and desorbing lithium; a negative electrode plate containing a negative electrode active material capable of reversibly absorbing and desorbing lithium; a separator separating the positive electrode plate and the negative electrode plate; and a nonaqueous electrolyte solution obtained by dissolving a solute in an organic solvent, said solute being composed of a lithium salt. In this battery, a polyolefin microporous membrane is used as the separator formed of a multilayer film having two or more layers and at least one of two surface layers of said polyolefin microporous membrane containing inorganic particles. Thus the nonaqueous electrolyte secondary battery exhibits good low-temperature characteristics, high-temperature storage characteristics and room-temperature cycle characteristics even in cases where hexamethylene diisocyanate is contained in the nonaqueous electrolyte solution.
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Inventors:
Iwanaga Masato
Application Number:
JP2013502257A
Publication Date:
September 07, 2016
Filing Date:
February 22, 2012
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H01M10/0567; H01M10/052; H01M50/417; H01M50/451; H01M50/457
Domestic Patent References:
| JP2003003078A | 2003-01-08 | |||
| JP2007242411A | 2007-09-20 | |||
| JP2006164759A | 2006-06-22 | |||
| JP2003003078A | 2003-01-08 | |||
| JP2007242411A | 2007-09-20 | |||
| JP2006164759A | 2006-06-22 |
Foreign References:
| WO2006038532A1 | 2006-04-13 | |||
| WO2006038532A1 | 2006-04-13 |
Attorney, Agent or Firm:
Patent Business Corporation IP Win