Title:
A manufacturing method of an accumulation-of-electricity element
Document Type and Number:
Japanese Patent JP5945904
Kind Code:
B2
Abstract:
Provided is an electric storage device that can ensure seal in a peripheral area of a portion in a defining wall of a case through which a rivet passes even when a rivet is inserted through the defining wall of the case and the rivet is caulked. The electric storage device includes: an electrode assembly: a case that houses the electrode assembly, the case including a defining wall; and a rivet, wherein a peripheral area of a portion in the defining wall through which the rivet passes has a higher hardness than the remaining area.
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Inventors:
Kawamoto Gen
Tsutsumi Masakazu
Jun Nakamura
Tsutsumi Masakazu
Jun Nakamura
Application Number:
JP2011278647A
Publication Date:
July 05, 2016
Filing Date:
December 20, 2011
Export Citation:
Assignee:
Gs Yuasa Co., Ltd.
International Classes:
H01G11/00; H01G11/74; H01G11/78; H01M50/553; H01M50/193; H01M50/55; H01M50/567
Domestic Patent References:
| JP2000268781A | ||||
| JP2001093485A | ||||
| JP2000277081A | ||||
| JP2009289637A | ||||
| JP2010157415A | ||||
| JP2009054531A | ||||
| JP2008305645A |
Attorney, Agent or Firm:
Noboru Fujimoto