Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY USING THE SAME
Document Type and Number:
Japanese Patent JP2011029075
Kind Code:
A
Abstract:

To provide an electrode for reducing stress directed toward the surface of a current collector and inhibiting the peeling of an active material layer from the current collector.

A negative electrode for lithium ion secondary battery includes a current collector and an active material layer formed on the current collector. The active material layer includes a first active material layer and a second active material layer having smaller volume variation than the first active material layer due to occlusion and release of lithium. The first active material layer and the second active material layer are alternately disposed towards the surface of the electrode.


Inventors:
SAKAGUCHI SHINICHIRO
Application Number:
JP2009175481A
Publication Date:
February 10, 2011
Filing Date:
July 28, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NISSAN MOTOR
International Classes:
H01M4/13; H01M4/133; H01M4/134; H01M4/36; H01M4/72; H01M4/74
Attorney, Agent or Firm:
Hatta International Patent Corporation