Title:
LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2016/088837
Kind Code:
A1
Abstract:
Provided is a lithium secondary battery having excellent high-temperature cycle characteristics, which comprises a positive electrode that is capable of absorbing and desorbing lithium, a negative electrode, and an electrolyte solution that contains a nonaqueous electrolyte solvent. This lithium secondary battery is characterized in that: a negative electrode active material contains a compound containing elemental silicon; and the surface of the negative electrode contains a phosphorus compound having a cyclic phosphoric acid ester structure wherein -O-P-O- constitutes a part of the ring structure.
Inventors:
TAKAHASHI MAKIKO (JP)
NOGUCHI TAKEHIRO (JP)
KATOU YUUKOU (JP)
NOGUCHI TAKEHIRO (JP)
KATOU YUUKOU (JP)
Application Number:
PCT/JP2015/084027
Publication Date:
June 09, 2016
Filing Date:
December 03, 2015
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H01M4/13; H01M4/134; H01M4/38; H01M4/48; H01M4/505; H01M4/525; H01M4/58; H01M10/052; H01M10/0567; H01M10/0568; H01M10/0569; H01M10/058
Domestic Patent References:
| WO2014080871A1 | 2014-05-30 | |||
| WO2013183655A1 | 2013-12-12 | |||
| WO2015025877A1 | 2015-02-26 |
Foreign References:
| JP2014137996A | 2014-07-28 | |||
| JP2013062026A | 2013-04-04 | |||
| JPH11307081A | 1999-11-05 |
Attorney, Agent or Firm:
ITO, Katsuhiro et al. (JP)
Katsuhiro Ito (JP)
Katsuhiro Ito (JP)
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