ELECTRICITY STORAGE DEVICE - HITACHI VEHICLE ENERGY LTD

Title:

ELECTRICITY STORAGE DEVICE

Document Type and Number:

WIPO Patent Application WO/2014/118965

Kind Code:

A1

Abstract:

An electricity storage device comprises: a power generation element having electrodes; a can for housing the power generation element; a lid for sealing the opening of the can; external terminals disposed on the lid; and collectors for connecting the electrodes of the power generation element and the external terminals. The external terminals include: a bus-bar welding portion having a bus-bar welding surface to which a bus bar is welded; and a collector connecting portion having a caulking jig touch surface. The collector connecting portion includes an insertion portion, which is inserted into a through-hole of the lid and an end of which is caulked and fixed to the collector. The bus-bar welding portion and the collector connecting portion are provided integrally adjacent to each other on the lid. The jig touch surface extends from the bus-bar welding surface in the same surface as the bus-bar welding surface.

Inventors:

TSUNAKI TAKURO (JP)
IWASA MASAAKI (JP)
URANO KAZUAKI (JP)
SAIMARU SHOU (JP)
MATSUMOTO SHO (JP)

Application Number:

PCT/JP2013/052334

Publication Date:

August 07, 2014

Filing Date:

February 01, 2013

Export Citation:

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Assignee:

HITACHI VEHICLE ENERGY LTD (JP)

International Classes:

H01M50/176; H01M50/188; H01M50/505; H01M50/516; H01M50/566; H01M50/538; H01M50/55; H01M50/553; H01M50/562

Foreign References:

JP2012243405A	2012-12-10
JP2012248451A	2012-12-13
JP2010080355A	2010-04-08
JP2012160337A	2012-08-23
JP2012123946A	2012-06-28

Other References: