Separator for alkaline cell and alkaline cell prepared by using

Details Separator for alkaline cell and alkaline cell prepared by using Separator for alkaline cell and alkaline cell prepared by using

1990-01-31

1991-06-25

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429251, H01M 216

Patent

active

050266179

ABSTRACT:
A separator for an alkaline cell comprising a substrate of a separator and 0.1% to 10% by weight of amorphous ultra fine particles of titanium dioxide and/or hydrated titanium dioxide having a primary particle diameter of a maximum of 500 .ANG. and a specific surface area of a minimum of 100 m.sup.2 /gram. An alkaline cell is also provided which incorporates the separator. The separator results in improved capability to retain electrolytic solution, improved resistivity against alkali and a low amount of residual gas generated during charge. Furthermore, the separator minimizes the electrical resistance, improves the resistivity against oxidation and prevents dendrite occurrence.

REFERENCES:
patent: 4287276 (1981-09-01), Lundquist, Jr. et al.
patent: 4327164 (1982-04-01), Feinberg et al.
patent: 4330602 (1982-05-01), O'Bell et al.
patent: 4331746 (1982-05-01), Sheibley
patent: 4734344 (1988-03-01), Choi

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