Title:
NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES
Document Type and Number:
WIPO Patent Application WO/2015/045385
Kind Code:
A1
Abstract:
Provided is a negative electrode for nonaqueous electrolyte secondary batteries, which has high capacity and a long service life. This negative electrode for nonaqueous electrolyte secondary batteries is composed of: a first active material layer (3) that is arranged on a collector (2); and a second active material layer (4) that covers the first active material layer (3). The first active material layer (3) is a layer containing a conductive assistant, a binder resin and a first active material that can be reversibly alloyed with lithium. The second active material layer (4) is a layer containing a conductive assistant, a binder resin and a second active material that does not form an alloy with lithium and is capable of reversibly absorbing and desorbing lithium.
Inventors:
SUGAWARA KENJI (JP)
Application Number:
PCT/JP2014/004909
Publication Date:
April 02, 2015
Filing Date:
September 25, 2014
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD (JP)
International Classes:
H01M4/13; H01M4/139; H01M4/36; H01M4/38; H01M4/46; H01M4/587; H01M4/62; H01M4/66; H01M10/052; H01M10/0585; H01M10/0587
Domestic Patent References:
WO2003100888A1 | 2003-12-04 |
Foreign References:
JP2004362789A | 2004-12-24 | |||
JP2009266705A | 2009-11-12 | |||
JP2006059704A | 2006-03-02 | |||
JP2008277156A | 2008-11-13 | |||
JP2011029075A | 2011-02-10 |
Attorney, Agent or Firm:
HIROSE, Hajime et al. (JP)
Hirose 1 (JP)
Hirose 1 (JP)
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