SOLID POLYMER ELECTROLYTE Russian patent published in 2021 - IPC H01M6/18 H01M10/05 

FIELD: electrical industry.

SUBSTANCE: invention relates to the field of electrical industry and can be used in production of lithium primary and secondary current sources, as well as in supercapacitors. The technical problem solved by invention consists in increasing the specific electrical conductivity of solid polymer electrolyte, ensuring its electrochemical stability and mechanical strength. Expected result is achieved by the fact that the solid polymer electrolyte consists of a polymer matrix and inorganic ionogenic lithium salt, while poly [1,4-phenylenoxy-4-bis(trifluoromethyl)methane-6,9-phenylenoxy-10,13-phenylenesulfonyl-14,17 phenylene] of average molecular weight (0.2-1.0) ⋅10⁵ at the following mass ratio of components, parts by mass: poly [1,4-phenylenoxy-4-bis(trifluoromethyl)methane-6,9-phenylenoxy-10,13-phenylenesulfonyl-14,17 phenylene] - 100, inorganic lithium salt - 1-22.

EFFECT: increasing the electrolyte homogeneity and increasing diffusion coefficient of lithium and tensile strength.

1 cl, 1 tbl