SOBASED ELECTROLYTE FOR BATTERY CELL AND BATTERY CELL Russian patent published in 2022 - IPC H01M10/563 

FIELD: battery cells.

SUBSTANCE: invention relates to an SO₂-based electrolyte for a battery cell and to a battery cell. The electrolyte contains at least one first conductive salt of formula (I)

,

while M is a metal selected from the group consisting of alkali metals, alkaline earth metals, metals of the 12th group of the periodic table of elements and aluminum; x is an integer from 1 to 3; substituents R¹, R², R³ and R⁴ are independently selected from the group consisting of C₁-С₁₀ alkyl, С₂-С₁₀ alkenyl, С₂-С₁₀ alkynyl, С₃-С₁₀ cycloalkyl, С₆-С₁₄ aryl and С₅-С₁₄ heteroaryl; and Z is aluminum or boron.

EFFECT: high level of electrical energy and good performance, high operational reliability and service life, in particular, a large number of useful charge and discharge cycles without destroying the electrolyte during operation of the battery cell.

24 cl, 13 dwg, 5 tbl, 3 ex