Nonaqueous battery sealed with a montmorillonite material

Details Nonaqueous battery sealed with a montmorillonite material Nonaqueous battery sealed with a montmorillonite material

1993-06-18

1994-04-26

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

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

429194, H01M 208

Patent

active

053065824

ABSTRACT:
A nonaqueous battery having a positive electrode made of an active material of light metal or its alloy or an active material capable of intercalating/deintercalating lithium ion, and a nonaqueous electrolyte, in which the battery is sealed with a sealant containing a pitch and at least one montmorillonite group material. In a preferred embodiment, the amount of the montmorillonite group material is in the range of 2 to 30% by weight based on the total weight of the sealant minus solvents. The pitch may be a blown asphalt and the at least one montmorillonite group material may be a tri-octahedron type montmorillonite group material comprising a quaternary ammonium intercalated between layers. Alternatively, the pitch may be blown asphalt having a penetration (25.degree. C.) of 10 to 20 and the at least one montmorillonite group material may be a hectolite comprising a quaternary ammonium intercalated between layers.

REFERENCES:
patent: 4184007 (1980-01-01), Urry
patent: 4248944 (1981-02-01), Smilanich
patent: 4256815 (1981-03-01), Smilanich et al.
patent: 4503133 (1985-03-01), van Lier et al.

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