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Title:
CARBON MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND MANUFACTURING METHOD FOR CARBON MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2014/030720
Kind Code:
A1
Abstract:
　The objective of the present invention is to provide a non-aqueous electrolyte secondary battery having superior input and output characteristics, even at low temperatures. In order to do so, the input and output characteristics of a non-aqueous electrolyte secondary battery at low temperatures are drastically improved by using, as the negative electrode active material in the non-aqueous electrolyte secondary battery, composite particles (carbon material) that satisfy specific conditions and comprise graphite particles and carbon particles having a primary particle diameter of 3nm-500nm, said composite particles preferably further containing amorphous carbon.

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Inventors:
YAMADA SHUNSUKE (JP)
ISHIWATARI NOBUYUKI (JP)
UEDA AKIO (JP)
FUSE TOORU (JP)
YOKOMIZO MASAKAZU (JP)
KATOU AKIHIRO (JP)
Application Number:
PCT/JP2013/072472
Publication Date:
February 27, 2014
Filing Date:
August 22, 2013
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
H01M4/587; H01M4/36
Domestic Patent References:
WO2007086603A12007-08-02
WO2012000201A12012-01-05
WO2007086603A12007-08-02
Foreign References:
JP2010218758A2010-09-30
JP2009266795A2009-11-12
JP2008027664A2008-02-07
JP2004063321A2004-02-26
JPH1131508A1999-02-02
JP2004063321A2004-02-26
JP2007200868A2007-08-09
JP2009004304A2009-01-08
Other References:
See also references of EP 2889937A4
Attorney, Agent or Firm:
KAWAGUCHI, Yoshiyuki et al. (JP)
Yoshiyuki Kawaguchi (JP)
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