Title:
STOPPER FOR SEALED BATTERY, AND SEALED BATTERY
Document Type and Number:
WIPO Patent Application WO/2015/068353
Kind Code:
A1
Abstract:
A stopper according to the present invention, the stopper being used in a sealed battery, is provided with: a conductive terminal cap; a conductive explosion-proof valve electrically connected to the terminal cap; a conductive terminal plate having an abutting surface abutting the explosion-proof valve; and an insulating plate interposed between the explosion-proof valve and the terminal plate, wherein the stopper for a sealed battery is characterized in that the inner portion of the abutting surface has a welded portion formed between the explosion-proof valve and the terminal plate, the plan view shape of the welded portion is a shape defining an enclosed region, a C-shape, or a coil shape, a notch surrounding the welded portion is formed in the terminal plate, and the burst pressure of the welded portion is greater than the burst pressure of the notch.
Inventors:
FUKUOKA TAKAHIRO
YAMASHITA SHUICHI
YAMAGUCHI YUMA
IIDA YUKI
YAMASHITA SHUICHI
YAMAGUCHI YUMA
IIDA YUKI
Application Number:
PCT/JP2014/005428
Publication Date:
May 14, 2015
Filing Date:
October 27, 2014
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M50/169
Foreign References:
| JPH09129195A | 1997-05-16 | |||
| JPH1021892A | 1998-01-23 | |||
| JP2005011673A | 2005-01-13 | |||
| JP2014127284A | 2014-07-07 | |||
| JPH07105933A | 1995-04-21 | |||
| JPH08115714A | 1996-05-07 |
Attorney, Agent or Firm:
TOKUDA, Yoshiaki et al. (JP)
Yoshiaki Tokuda (JP)
Yoshiaki Tokuda (JP)
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