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Title:
NEGATIVE ELECTRODE MATERIAL FOR NON-AQUEOUS SECONDARY BATTERIES, NEGATIVE ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERIES, AND NON-AQUEOUS SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/225534
Kind Code:
A1
Abstract:
A negative electrode material for non-aqueous secondary batteries, comprising carbonaceous particles (A) and silicon oxide particles (B), wherein the carbonaceous particles (A) have a 10% particle dimeter deformation pressure of 10 MPa or less as measured by a specific measurement method using a micro-compression testing machine, and the median diameter (D50) of the silicon oxide particles (B) is 0.8 to 20 μm inclusive. It is preferred that the content ratio of the silicon oxide particles (B) relative to the total amount of the carbonaceous particles (A) and the silicon oxide particles (B) is less than 30% by weight.

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Inventors:
MARU NAOTO (JP)
YAMADA SHUNSUKE (JP)
KONDO HISAKO (JP)
Application Number:
PCT/JP2019/019872
Publication Date:
November 28, 2019
Filing Date:
May 20, 2019
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
H01M4/587; H01M4/36; H01M4/38; H01M4/48
Foreign References:
JP2013200983A2013-10-03
JP2007242282A2007-09-20
JP2017016944A2017-01-19
JP2011233497A2011-11-17
JP2017004727A2017-01-05
JP2018088406A2018-06-07
JP2015038862A2015-02-26
JP2015069762A2015-04-13
JP2009105046A2009-05-14
JP2017004727A2017-01-05
JP2013200983A2013-10-03
JP3952118B22007-08-01
JP2018098022A2018-06-21
Other References:
"Encyclopedia of powder process industry and technology", vol. 49, 1974, SANGYO GIJYUTSU CENTER K.K., article "Graphite"
"HANDBOOK OF CARBON, GRAPHITE, DIAMOND AND FULLERENES", NOYES PUBLICATIONS
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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