Title:
LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2013/183522
Kind Code:
A1
Abstract:
The present invention pertains to a lithium ion secondary battery having an electrode element in which a positive electrode and a negative electrode are disposed facing one another, an electrolyte solution, and an outer package for encapsulating the electrode element and the electrolyte solution, wherein: the negative electrode is prepared by using a second negative electrode active material in which lithium is doped into a first negative electrode active material containing a metal (a) that can alloy with lithium, a metal oxide (b) that can absorb and release lithium ions, and a carbon material (c) that can absorb and release lithium ions; and the electrolyte solution contains a fluorinated ether compound represented by a predetermined formula.
Inventors:
KAWASAKI DAISUKE (JP)
SUDO SHINYA (JP)
SUDO SHINYA (JP)
Application Number:
PCT/JP2013/064945
Publication Date:
December 12, 2013
Filing Date:
May 29, 2013
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H01M10/052; H01M2/02; H01M4/36; H01M4/38; H01M4/48; H01M4/62; H01M10/0567; H01M10/0569; H01M10/0585
Domestic Patent References:
| WO2012015033A1 | 2012-02-02 |
Foreign References:
| JP2012043691A | 2012-03-01 | |||
| JP2010160986A | 2010-07-22 | |||
| JP2003346793A | 2003-12-05 |
Attorney, Agent or Firm:
ITO, Katsuhiro et al. (JP)
Katsuhiro Ito (JP)
Katsuhiro Ito (JP)
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