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Title:
NEGATIVE ELECTRODE ACTIVE MATERIAL CONTAINING AL-CONTAINING SILICON MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/053985
Kind Code:
A1
Abstract:
The present invention provides a novel silicon material. A negative electrode active material is characterized by containing an Al-containing silicon material for which the Al mass% (WAl%) satisfies 0 < WAl < 1, and for which the BET specific surface area is 4 to 10 m2/g.

Inventors:
YAMAGUCHI YASUHIRO (JP)
MOHRI TAKASHI (JP)
HARATA MASANORI (JP)
MAEHARA YUUKI (JP)
SUGIOKA TAKAHIRO (JP)
MUNE SHIMPEI (JP)
Application Number:
PCT/JP2018/023078
Publication Date:
March 21, 2019
Filing Date:
June 18, 2018
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Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
H01M4/38; C01B33/02; C01B33/06; H01G11/30; H01G11/86
Domestic Patent References:
WO2016031146A12016-03-03
WO2015182123A12015-12-03
Foreign References:
JP2015176674A2015-10-05
Attorney, Agent or Firm:
KYORITSU INTERNATIONAL (JP)
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