Title:
LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2016/194733
Kind Code:
A1
Abstract:
Provided is a lithium ion secondary battery which is provided with a negative electrode having a high capacity and containing, as an active material, a metal and/or a metal oxide, and which has improved cycle characteristics. The present invention relates to a lithium ion secondary battery comprising a positive electrode, a negative electrode and an electrolyte solution, and this lithium ion secondary battery is characterized in that: the negative electrode contains a polyacrylic acid and at least one substance selected from the group consisting of (a) carbon materials which are capable of absorbing and desorbing lithium ions, (b) lithium metal and metals which are capable of forming an alloy with lithium, and (c) metal oxides which are capable of absorbing and desorbing lithium ions; and the electrolyte solution contains at least one disulfonic acid ester.
Inventors:
SHIMANUKI IKIKO (JP)
TAMAI SUGURU (JP)
TAMAI SUGURU (JP)
Application Number:
PCT/JP2016/065446
Publication Date:
December 08, 2016
Filing Date:
May 25, 2016
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H01M10/0567; H01M4/13; H01M4/36; H01M4/38; H01M4/48; H01M4/62; H01M10/052
Domestic Patent References:
| WO2013008525A1 | 2013-01-17 | |||
| WO2012120597A1 | 2012-09-13 |
Foreign References:
| JP2008192488A | 2008-08-21 | |||
| JPH09289022A | 1997-11-04 | |||
| JP2011124039A | 2011-06-23 | |||
| JP2006164952A | 2006-06-22 | |||
| JP2011023221A | 2011-02-03 |
Other References:
See also references of EP 3306733A4
Attorney, Agent or Firm:
ITO, Katsuhiro et al. (JP)
Katsuhiro Ito (JP)
Katsuhiro Ito (JP)
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