SO-BASED ELECTROLYTE FOR STORAGE BATTERY CELL AND STORAGE BATTERY CELL Russian patent published in 2024 - IPC H01M10/525 H01M10/54 H01M10/568 

FIELD: chemistry.

SUBSTANCE: invention relates to an electrolyte based on SO₂ for a storage battery cell and to a storage battery cell. SO₂-based electrolyte and storage battery cell (2, 20, 40) with such an electrolyte containing at least a first conducting salt of formula:

,

where: M is a metal selected from the group consisting of alkali metals, alkali-earth metals, metals of group 12 of the periodic table of elements and aluminium; x is integer from 1 to 3; R¹, R² are independently selected from a group consisting of a halogen atom, a hydroxyl group, a chemical group -OR⁵ and a chelate ligand formed together by at least two of substitutes R¹, R², R³, R⁴ and coordinated with Z; R³ is selected from the group consisting of a hydroxyl group, a chemical group -OR⁵ and a chelate ligand formed together by at least two of substitutes R¹, R², R³, R⁴ and coordinated with Z; substitute R⁴ is selected from the group consisting of a halogen atom, a hydroxyl group and a chelate ligand formed together by at least two of substitutes R¹, R², R³, R⁴ and coordinated with Z; substituent R⁵ is selected from the group consisting of C_1-10 alkyl, C_2-10 alkenyl, C_2-10 alkynyl, C_3-10 cycloalkyl, C_6-14 aryl and C_5-14 heteroaryl; Z is aluminium or boron.

EFFECT: obtained organic lithium-ion cell has very good electrical and operational characteristics, high operational reliability and service life, in particular, a large number of useful charging and discharging cycles.

25 cl, 12 dwg, 1 tbl, 4 ex