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Title:
COMPOSITE MATERIAL, METHOD FOR MANUFACTURING COMPOSITE MATERIAL, ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2013191529
Kind Code:
A
Abstract:

To provide a composite material which achieves an excellent cycle characteristic while maintaining a high discharge capacity even in the condition that charge and discharge are repeated, and an excellent charge and discharge efficiencies in an early stage of cycles when used in a lithium ion secondary battery.

The composite material comprises: particles each having a solid phase A primarily including Si, and a solid phase B including an intermetallic compound of Si and at least one selected from Cr and Ti; a carbon material; and a metal oxide.


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Inventors:
YASUDA AKIRA
OZEKI KATSUTOMO
OSAKI YOSHIE
Application Number:
JP2012164935A
Publication Date:
September 26, 2013
Filing Date:
July 25, 2012
Export Citation:
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Assignee:
HITACHI CHEMICAL CO LTD
International Classes:
H01M4/38; H01M4/36; H01M4/48; H01M4/587
Domestic Patent References:
JP2007157704A2007-06-21
JP2006196338A2006-07-27
JP2004259475A2004-09-16
JP2002170561A2002-06-14
JP2006221830A2006-08-24
JP2010160986A2010-07-22
JP2013528907A2013-07-11
JP2007200686A2007-08-09
JP2010170943A2010-08-05
JP2009070825A2009-04-02
JP2001297757A2001-10-26
JP2011175821A2011-09-08
JP2009224168A2009-10-01
JP2007141504A2007-06-07
JP2000012017A2000-01-14
JP2013521620A2013-06-10
JP2007115671A2007-05-10
JP2007087941A2007-04-05
JP2012009457A2012-01-12
Foreign References:
US20090053608A12009-02-26
US20110039157A12011-02-17
WO2010058879A12010-05-27
WO2011053553A12011-05-05
WO2011109328A12011-09-09
WO2006106782A12006-10-12
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office



 
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