Sealed type lead acid storage battery

Details Sealed type lead acid storage battery Sealed type lead acid storage battery

1990-08-13

1991-12-24

Kalafut, Stephen J.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

429252, H01M 216

Patent

active

050751840

ABSTRACT:
An integrated composite-type separator sheet for use in a sealed type lead acid storage battery comprising: (i) at least one pressed fiber layer of a first type consisting essentially of glass fibers having an average diameter of 0.1-2 .mu., and (ii) a pressed fiber layer of a second type consisting essentially of glass fibers having an average diameter of 3-10 .mu., said pressed fiber layer of the second type having a thickness at least equal to the thickness of the pressed fiber layer of the first type.
The separator and battery of this invention have the following advantages: good close contact between the separator and the electrode plates maintained for a long time during the use of the battery, and greatly improved performance of the battery and its service life, as compared with conventional batteries.

REFERENCES:
patent: 2117371 (1938-05-01), Slayter
patent: 2511887 (1950-06-01), Vinal
patent: 3014085 (1961-12-01), Bachman
patent: 3711332 (1973-01-01), Bastacky
patent: 4216281 (1980-08-01), O'Rell et al.
patent: 4361632 (1982-11-01), Weber et al.
patent: 4414295 (1983-11-01), Uba

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