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Title:
POWER STORAGE DEVICE
Document Type and Number:
Japanese Patent JP2014107217
Kind Code:
A
Abstract:

To appropriately restrain a single cell whose wall surface included in a power storage device swells out.

Provided is a power storage device in which single cells the wall surface whose battery case swells in a prescribed direction by accommodating a wound body as a power generation element are stacked one on another in the prescribed direction, and a spacer member is interposed between the single cells adjacent to each other. The power storage device is characterized in that a plurality of ribs protruding toward the battery case are formed on the spacer member, the plurality of ribs have a center-side rib formed at a position corresponding to a region facing the wound body in the prescribed direction and an outer rib other than the center-side rib, the center-side rib having a lower height in the prescribed direction than the outer rib, and all of the plurality of ribs are in contact with the battery case.


Inventors:
OZAKI AKIHIRO
FUKUDA SHIGERU
KOBAYASHI TAKENORI
Application Number:
JP2012261290A
Publication Date:
June 09, 2014
Filing Date:
November 29, 2012
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M2/10
Domestic Patent References:
JP2012113961A2012-06-14
JP2009277471A2009-11-26
JP2010287530A2010-12-24
JP2009277471A2009-11-26
Foreign References:
WO2011158341A12011-12-22
WO2013084290A12013-06-13
US20120129038A12012-05-24
Attorney, Agent or Firm:
Mizuno Katsufumi
Makoto Ide
Hiroshi Suzawa



 
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