Title:
LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2016/093246
Kind Code:
A1
Abstract:
Provided is a lithium ion secondary battery which has excellent heat resistance, while being suppressed in the formation of lithium dendrite. The present invention relates to a secondary battery which comprises an electrode element containing a positive electrode, a negative electrode and a separator, and which is characterized in that: the negative electrode contains (a) a carbon material that is capable of absorbing and desorbing lithium ions and (b) a negative electrode active material containing an oxide that is capable of absorbing and desorbing lithium ions; and the separator contains 50% by mass or more of a nonwoven fabric that has a thermal melting or thermal decomposition temperature of 160°C or more.
Inventors:
KAWASAKI DAISUKE (JP)
SHIMURA KENICHI (JP)
ISHIKAWA HITOSHI (JP)
SHIMURA KENICHI (JP)
ISHIKAWA HITOSHI (JP)
Application Number:
PCT/JP2015/084434
Publication Date:
June 16, 2016
Filing Date:
December 08, 2015
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H01M10/052; H01M4/36; H01M4/505; H01M4/525; H01M4/587; H01M10/0566; H01M10/058; H01M50/489; H01M50/417; H01M50/443; H01M50/491
Foreign References:
JP2013191550A | 2013-09-26 | |||
JP2011108593A | 2011-06-02 | |||
JP2013139652A | 2013-07-18 | |||
JP2007157723A | 2007-06-21 | |||
JP2012124029A | 2012-06-28 | |||
JP2013137984A | 2013-07-11 | |||
JP2013511124A | 2013-03-28 |
Attorney, Agent or Firm:
ITO, Katsuhiro et al. (JP)
Katsuhiro Ito (JP)
Katsuhiro Ito (JP)
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