POROUS SEPARATOR OF SUPERFINE FIBRE WITH HEAT RESISTANCE AND HIGH STRENGTH, METHOD OF ITS MANUFACTURE AND ACCUMULATOR BATTERY USING THIS SEPARATOR Russian patent published in 2014 - IPC H01M2/16 H01M10/38 

FIELD: electricity.

SUBSTANCE: invention is related to manufacture of accumulator battery separators. The method for manufacture of heat-resistant and high-strength separator of a superfine fibre includes the following stages: air-blast electrospinning of the mixed solution containing from 50 up to 70 wt % of heat-resistant polymer material and from 30 up to 50 wt % of swellable polymer material thus forming a porous tissue made of the heat-resistant superfine fibre where heat-resistant polymer material and swellable polymer material are united in the form of the superfine fibre; drying in order to control content of the solvent and moisture remained at the surface of porous tissue; thermal compression of the dried porous tissue at a temperature within the range of 170 and 210°C.

EFFECT: invention suggests the porous separator of the superfine fibre with heat-resistance and high strength and the method for its manufacture as mass production of the heat-resistant and high-strength separator of the superfine fibre using air-blast electrospinning (AES), as well as an accumulator battery using such separator.

24 cl, 9 dwg, 2 tbl, 7 ex