Title:
二次電池およびその製造方法
Document Type and Number:
Japanese Patent JP6289986
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a secondary battery capable of improving cycle characteristics of the secondary battery without exposing an electrode to a high temperature in a manufacturing process and a manufacturing method of the same.SOLUTION: The secondary battery includes a negative electrode having a negative electrode foil 42a and a negative electrode mixture layer 42b. The negative electrode mixture layer 42b contains SiO-based active material particles 1 and a binder 2. Each of the SiO-based active material particles 1 is at least partially covered by a coating layer 3 composed of a resin material containing an imide bond imidized at a temperature higher than a heat-resistant temperature of the binder 2.
Inventors:
Ryo Kojima
Akihide Tanaka
Akihide Tanaka
Application Number:
JP2014088257A
Publication Date:
March 07, 2018
Filing Date:
April 22, 2014
Export Citation:
Assignee:
Hitachi Automotive Systems, Ltd.
International Classes:
H01M4/13; H01M4/133; H01M4/139; H01M4/1393; H01M4/36; H01M4/48; H01M4/62
Domestic Patent References:
| JP2009224239A | ||||
| JP2012519948A |
Attorney, Agent or Firm:
Yusuke Hiraki
Sekiya Mitsuo
Toshiaki Watanabe
Sekiya Mitsuo
Toshiaki Watanabe