Title:
NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2013/121624
Kind Code:
A1
Abstract:
An objective of the present invention is to provide a method for manufacturing a negative electrode for a lithium secondary battery wherein conductive metal particles can be uniformly and easily formed in a conductive intermediate layer. The present invention provides a method for manufacturing a negative electrode for a lithium secondary battery which includes a current collector comprising a metal, an active material layer comprising an active material and a binder, and a conductive intermediate layer comprising conductive metal particles which is provided between the current collector and the active material layer, the method comprising the steps of: (1) placing a polyamic acid on the current collector; (2) allowing migration to take place thereby causing the metal to transfer from the current collector into the polyamic acid; and (3) curing the polyamic acid by heating, wherein the metal transferred into the polyamic acid constitutes the conductive metal particles.
More Like This:
Inventors:
IRIYAMA JIRO (JP)
KAJITA TETSUYA (JP)
KAJITA TETSUYA (JP)
Application Number:
PCT/JP2012/076706
Publication Date:
August 22, 2013
Filing Date:
October 16, 2012
Export Citation:
Assignee:
NEC CORP (JP)
IRIYAMA JIRO (JP)
KAJITA TETSUYA (JP)
IRIYAMA JIRO (JP)
KAJITA TETSUYA (JP)
International Classes:
H01M4/13; H01M4/134; H01M4/139; H01M4/1395; H01M4/38; H01M4/62; H01M4/66
Domestic Patent References:
| WO2010137415A1 | 2010-12-02 |
Foreign References:
| JP2004288520A | 2004-10-14 | |||
| JP2007123141A | 2007-05-17 | |||
| JP2007165061A | 2007-06-28 | |||
| JP2011060560A | 2011-03-24 | |||
| JP2010106225A | 2010-05-13 | |||
| JP2011108600A | 2011-06-02 | |||
| JPH11126612A | 1999-05-11 |
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
Akio Miyazaki (JP)
Download PDF:
Claims: