Metal working – Method of mechanical manufacture – Electrical device making
Patent
1989-02-03
1990-05-29
Skapars, Anthony
Metal working
Method of mechanical manufacture
Electrical device making
429190, H01M 1010
Patent
active
049292510
ABSTRACT:
The invention relates to a lead accumulator with a thixotropic gel consisting primarily of sulphuric acid and a gel former as an electrolyte, whereby the electrolyte consists of two different phases, a liquid, gel former-free phase, by which essentially the pores of the active materials are filled in, a solid phase, as a thioxotropic gel, by which the electrolyte space especially between the electrodes, is filled up. Both phases merge in the zone of the pores of the separators, which are arranged about the electrodes. Arranged in relation to the electrodes as separators are fibrous, non-woven materials, woven textile fabrics or other flexible, porous surface structures with capillary-active properties, that cover the entire surfaces of the electrodes without separation. The electrodes are retained in their positions by means of spacers.
The partial electrolyte present as thixotropic gel contains as gel former 6-15% preferably 8-12% of a pyrogenically produced silicic acid, the particle size of which measures 0.01-0.1 microns, preferably 0.01-0.02 microns.
According to the process for producing the accumulator set forth in the invention,
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Koch Robert J.
Skapars Anthony
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