Title:
リチウム二次電池
Document Type and Number:
Japanese Patent JP6396153
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a high-capacity nonaqueous secondary battery superior in high-temperature cycle characteristics, storage suitability, and reliability.SOLUTION: A lithium secondary battery comprises: a positive electrode; a negative electrode; a separator; and a nonaqueous electrolyte. The nonaqueous electrolyte includes: a compound having a nitrile group in its molecule; lithium tetrafluoroborate; and an electrolytic salt. In the nonaqueous electrolyte, the content of the compound having a nitrile group in its molecule is 0.05-5.0 mass%, and the content of the lithium tetrafluoroborate is 0.05-0.70 mass%.
Inventors:
Ryota Han
Yusuke Nakamura
Takako Nishida
Haruki Kamisha
Yusuke Nakamura
Takako Nishida
Haruki Kamisha
Application Number:
JP2014201341A
Publication Date:
September 26, 2018
Filing Date:
September 30, 2014
Export Citation:
Assignee:
Maxell Holdings Co., Ltd.
International Classes:
H01M10/0567; H01M10/052; H01M10/0568
Domestic Patent References:
| JP2012169253A | ||||
| JP2010198916A | ||||
| JP2006244723A | ||||
| JP2011198747A | ||||
| JP2004179146A |
Foreign References:
| WO2013094465A1 | ||||
| WO2014021272A1 | ||||
| US20140342242 |
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