Non-aqueous battery with a block copolymer sealing member

Details Non-aqueous battery with a block copolymer sealing member Non-aqueous battery with a block copolymer sealing member

1994-11-01

1995-10-31

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Cell enclosure structure, e.g., housing, casing, container,...

429185, 429197, 429218, 429249, H01M 208

Patent

active

054628202

ABSTRACT:
A non-aqueous battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte as well as a battery can serving as a negative electrode-terminal and a sealing terminal serving as a positive electrode-terminal which are crimp-sealed through a gasket comprising a polyolefin resin, wherein the polyolefin resin comprises a block copolymer of propylene and ethylene having an ethylene copolymerization rate ranging from 2 to 20% by weight and a modulus in flexure ranging from 12000 to 18000 kg/cm.sup.2. The non-aqueous battery has substantially improved storage stability when it is not in use and is not deteriorated even when it is subjected to discharge, large current discharge and pulse-discharge in an atmosphere whose temperature varies.

REFERENCES:
patent: 4144384 (1979-03-01), Jacobson et al.
patent: 4166160 (1979-08-01), Chianelli et al.
patent: 4198476 (1980-04-01), Di Salvo, Jr.
patent: 4340652 (1982-07-01), Raistrick et al.
patent: 4618547 (1986-10-01), Markin
patent: 5332633 (1994-07-01), Adamson et al.
patent: 5360685 (1994-01-01), Tanaka

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