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Title:
COMPOSITE GRAPHITE PARTICLES FOR NON-AQUEOUS SECONDARY CELL NEGATIVE ELECTRODE, NEGATIVE ELECTRODE FOR NON-AQUEOUS SECONDARY CELL, AND NON-AQUEOUS SECONDARY CELL
Document Type and Number:
WIPO Patent Application WO/2014/046144
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide composite graphite particles (C) for a non-aqueous secondary cell negative electrode, in which a large amount of metal particles (B) which can be alloyed with Li are present in the particles. The present invention pertains to composite graphite particles for a non-aqueous secondary cell negative electrode, in which the composite graphite particles (C) contain graphite (A) and metal particles (B). When the cross section of the composite graphite particles (C) is observed using a scanning electron microscope, the graphite (A) is shown to have a folded structure, and the abundance ratio of the metal particles (B) in the composite graphite particles (C) is at least 0.2 when calculated using a specific measurement method.

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Inventors:
UEDA AKIO (JP)
AKASAKA SATOSHI (JP)
ISHIWATARI NOBUYUKI (JP)
FUSE TOORU (JP)
KAMEDA TAKASHI (JP)
ASAMI HARUMI (JP)
KIMURA TAKAHIDE (JP)
YAMADA SHUNSUKE (JP)
Application Number:
PCT/JP2013/075193
Publication Date:
March 27, 2014
Filing Date:
September 18, 2013
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
H01M4/38; H01M4/36; H01M4/48; H01M4/587
Domestic Patent References:
WO2012018035A12012-02-09
Foreign References:
JP2009181767A2009-08-13
JP2007227239A2007-09-06
JP2011003551A2011-01-06
JP2009164140A2009-07-23
JP2008235247A2008-10-02
JP2011233368A2011-11-17
JP2003223892A2003-08-08
JP2012043546A2012-03-01
JP2012124116A2012-06-28
JP2005243508A2005-09-08
JP2008027897A2008-02-07
JP2008186732A2008-08-14
JP3952118B22007-08-01
Other References:
"Funryutai Purosesu Gijutsu Shfisei", 1974, INDUSTRIAL TECHNOLOGY CENTER K.K.
"HANDBOOK OF CARBON, GRAPHITE, DIAMOND AND FULLERENES", NOYES PUBLICATIONS
See also references of EP 2899782A4
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
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