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Title:
HERMETICALLY SEALED CELL
Document Type and Number:
Japanese Patent JP2002289158
Kind Code:
A
Abstract:

To provide a hermetically sealed cell of low cost, and the cell having superior sealing and insulating properties.

The hermetically sealed cell has a metal casing 11 of cylindrical shape with bottom which encases positive electrodes 21, negative electrodes 22 and an electrolyte 13, and a metal lid 16 to close the opening 14 of the casing 11 with a gasket 15 therebetween. The gasket 15 is composed of a polymer injection-molded and ionizing radiation crosslinked, wherein the polymer is polyethylene, polyvinylidenefluoride, a compound of polyethylene and fluororubber, or a compound of polyvinylidenefluoride and fluororubber. Hence, this invention allows the continuous production of the gaskets by injection molding and reduces production cost. The crosslinking of the gasket enhances its thermal-resistance and makes it less softening, thereby maintaining the sealing effect of the cell in a heating atmosphere.


Inventors:
TAHIRA HIROKI
DEMACHI ATSUSHI
OKA TERUYUKI
KUBO TOSHIYUKI
TABUCHI SATOSHI
SAITO YASUHISA
KUWABARA TORAJI
TANAKA KEIICHI
HOSOKAWA TAKEHIRO
MURAO SATOSHI
Application Number:
JP2001087830A
Publication Date:
October 04, 2002
Filing Date:
March 26, 2001
Export Citation:
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Assignee:
HONDA MOTOR CO LTD
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
H01M2/08; (IPC1-7): H01M2/08
Domestic Patent References:
JPH10241645A1998-09-11
JPH10275604A1998-10-13
JP2000294206A2000-10-20
JP2000260409A2000-09-22
JPH11233079A1999-08-27
JPH11170365A1999-06-29
Attorney, Agent or Firm:
Yoichiro Shimoda (1 person outside)



 
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