METHOD OF FILLING SEALED ACCUMULATOR WITH GEL-LIKE SULPHURIC ACID ELECTROLYTE Russian patent published in 2016 - IPC H01M10/06 H01M10/10 H01M10/38 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, namely to method of filling sealed lead-acid accumulators with gel-like sulphuric acid electrolyte. Method involves filling of sealed lead storage battery with sulphuric gel-like electrolyte by creating negative pressure of gases in accumulator, feeding electrolyte and holding for impregnation of porous active mass of electrodes and separators with electrolyte, wherein evacuation and supply of electrolyte is made cyclically, and holding is performed at atmospheric pressure of gases. Fabricated accumulator has larger by 15-20 % value of current density in nominal and peak discharge modes, as well as higher by 11-20 % capacity and specific energy. Optimal value of negative pressure of gases in storage battery at cyclic filling with gel electrolyte makes 40-60 kPa, and duration of holding for impregnating pores of active masses of accumulator is 20-30 seconds.

EFFECT: technical result of invention is increased specific energy and density of discharge current of lead-acid battery due to improved impregnation of porous active mass of electrodes and separators of electrolyte.

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