HERMETIC BATTERY AND METHOD FOR MANUFACTURING SAME

WIPO Patent Application WO/2012/147782

A1

[Problem] To provide a highly productive hermetic battery equipped with a sealing body with a safety valve excellent in conductivity. [Solution] A hermetic battery is hermetically sealed by swaging and fixing a sealing body to the opening portion of a cylindrical exterior can with a bottom. A method for manufacturing the hermetic battery is characterized by comprising: a preparation step of preparing a terminal cap and a safety valve, the terminal cap having an external terminal portion projecting toward the outside of the battery and a flange portion positioned in the periphery of the external terminal portion, the safety valve having a current-carrying contact portion projecting toward the inside of the battery and a peripheral portion positioned in the periphery of the current-carrying contact portion and provided with a bent portion formed by bending the outer circumferential edge toward the outside of the battery; a temporarily fixing step of overlapping the safety valve and the terminal cap and temporarily fixing the overlapped portion by using the bent portion; and a conductive bonding step of conductively bonding the bent portion and the peripheral portion.

YAMATO KENJI (JP)
YAMASHITA SYUICHI (JP)
YAMAGUCHI YUMA (JP)

PCT/JP2012/061073

November 01, 2012

April 25, 2012

Click for automatic bibliography generation  

SANYO ELECTRIC CO (JP)
YAMATO KENJI (JP)
YAMASHITA SYUICHI (JP)
YAMAGUCHI YUMA (JP)

H01M50/171

WO2001059856A1

2001-08-16

JP2001126695A	2001-05-11
JP2010277784A	2010-12-09
JPH08212994A	1996-08-20
JP2009039720A	2009-02-26
JP2010135320A	2010-06-17
JPH04132158A	1992-05-06
JP2001167740A	2001-06-22

OHASHI MASAAKI (JP)
Masaaki Ohashi (JP)

View/Download PDF      PDF Help

Previous Patent: SLIDING MEMBER

Next Patent: NONAQUEOUS ELECTROLYTE SECONDARY CELL