Title:
二次電池
Document Type and Number:
Japanese Patent JP6474329
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a secondary battery capable of preventing the occurrence of winding dislocation in a wound electrode body when a winding core is pulled out from the wound electrode body that is wound about the winding core of a winding device.SOLUTION: A secondary battery includes a wound electrode body 30 in which a positive electrode 31 and a negative electrode 32 are wound about a winding axis A with separators 33, 34 interposed therebetween. The wound electrode body 30 includes an inorganic layer 34a on an inner peripheral surface 34i of the separator 34 that is wound on the most inner periphery.SELECTED DRAWING: Figure 5C
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Inventors:
Hirofumi Sasaki
Toshiyuki Ariga
Toshiyuki Ariga
Application Number:
JP2015142290A
Publication Date:
February 27, 2019
Filing Date:
July 16, 2015
Export Citation:
Assignee:
Hitachi Automotive Systems, Ltd.
International Classes:
H01M10/04; H01M2/16
Domestic Patent References:
| JP2010244875A | ||||
| JP2011154936A | ||||
| JP2014216252A | ||||
| JP201426768A | ||||
| JP11260338A | ||||
| JP2014216261A | ||||
| JP201222813A | ||||
| JP2012195296A |
Foreign References:
| WO2013108372A1 |
Attorney, Agent or Firm:
Yusuke Hiraki
Sekiya Mitsuo
Toshiaki Watanabe
Sekiya Mitsuo
Toshiaki Watanabe