COMPOSITE MATERIAL FOR MANUFACTURING OF BIPOLAR AND MONOPOLAR PLATES OF ELECTROCHEMICAL CELLS AND METHOD FOR THEIR MANUFACTURE Russian patent published in 2023 - IPC H01M4/96 

FIELD: electrochemical industry.

SUBSTANCE: method for manufacturing bipolar and monopolar plates for electrochemical cells from highly filled polymer composite materials. The composite material for manufacturing of bipolar and monopolar plates of electrochemical cells contains an elastomer polymer matrix and a functional filler with an auxiliary component distributed in the polymer matrix at the following ratio per 100 parts by weight including polymer matrix components, in parts by weight: functional filler – 100-600; auxiliary component – 0.5-20.

EFFECT: production of bipolar and monopolar plates of electrochemical cells from highly filled polymer composite materials with improved performance characteristics, such as: tensile strength up to 60 MPa, compressive strength up to 150 MPa, chemical resistance in acids and alkalis, electrolytes within pH 1-14, change in mass over 45 days not more than 1%, electrical conductivity up to 50 S/cm, thermal conductivity up to 15 W/(m×K), operating heat resistance up to 300°C, total porosity 2-30%, including open porosity less than 1%.

15 cl, 1 dwg, 2 tbl, 11 ex