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Title:
LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2017/155021
Kind Code:
A1
Abstract:
Provided is a lithium ion secondary battery that has excellent cycle characteristics and employs a silicon material for a negative electrode. This lithium ion secondary battery is characterized by having a negative electrode that contains: plate-shaped artificial graphite that is bent, at least some of the particles having a crease on the plate surface; and a material containing silicon as a constituent element.

Inventors:
AZAMI TAKESHI (JP)
Application Number:
PCT/JP2017/009429
Publication Date:
September 14, 2017
Filing Date:
March 09, 2017
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
H01M4/13; H01M4/36; H01M4/38; H01M4/48; H01M4/587; H01M10/052; H01M10/0566
Domestic Patent References:
WO2014046144A12014-03-27
WO2013094037A12013-06-27
Foreign References:
JP2013200984A2013-10-03
JP2015064936A2015-04-09
JP2015164127A2015-09-10
JP2013200983A2013-10-03
JP2002367611A2002-12-20
Attorney, Agent or Firm:
ITO, Katsuhiro et al. (JP)
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