Title:
POWER STORAGE ELEMENT
Document Type and Number:
Japanese Patent JP2015022941
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power storage element in which sealability can be enhanced in the vicinity of the electrode terminal thereof, and the sealability can be maintained.SOLUTION: In a power storage element 100 including a container 110, an electrode body 200 to be housed in the container, an electrode terminal 130, a collector member 160 for electrically connecting the electrode terminal and electrode body, and an external insulation sealant 120 for insulating the container and the electrode terminal, the electrode terminal has a columnar connection part 132 penetrating the container and being connected with the collector member, and a planar terminal body 131, i.e., the end of the connection part, arranged on the outside of the container. The external insulation sealant insulates the container and electrode terminal by being arranged between the container and connection part and between the container and terminal body. At least one of the terminal body and container is formed so that a first interval d1 between the terminal body and container at a first position P1 of the terminal body is smaller than a second interval d2 between the terminal body and container at a second position P2 closer to the connection part than the first position.
Inventors:
YAMAMOTO YOSHIHIRO
Application Number:
JP2013151071A
Publication Date:
February 02, 2015
Filing Date:
July 19, 2013
Export Citation:
Assignee:
GS YUASA CORP
International Classes:
H01M2/30; H01M2/06
Domestic Patent References:
| JP2013137992A | 2013-07-11 | |||
| JPH08203494A | 1996-08-09 | |||
| JPH09153351A | 1997-06-10 | |||
| JP2010097822A | 2010-04-30 | |||
| JP2010277936A | 2010-12-09 |
Attorney, Agent or Firm:
Nakahara Masaki