ACCUMULATOR BATTERY ELEMENT Russian patent published in 2022 - IPC H01M10/525 H01M10/563 H01M10/568 H01M4/525 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, namely to a lithium-ion accumulator battery, which has increased stability and reliability due to the use of an electrolyte based on SO₂, which shows good characteristics at low temperatures. Accumulator battery element (2, 20, 40) contains active metal, at least one positive electrode (4, 23, 44), at least one negative electrode (5, 22, 45), case (1, 28), and an electrolyte. In this case, specified positive electrode (4, 23, 44) contains at least one compound in the form of an oxide layer as active material, and the specified electrolyte is made based on SO₂, and it contains at least one conductive salt containing an organic additive selected from a group: C₁-C₁₀ alkyl, C₂-C₁₀ alkenyl, C₂-C₁₀ alkynyl, C₃-C₁₀ cycloalkyl, C₆-C₁₄ aryl, and C₅-C₁₄ heteroaryl, related to aluminum or boron. An accumulator battery with such an element provides an increase in charging and discharging cycles.

EFFECT: increase in operational reliability and service life of a battery without destruction of an electrolyte.

25 cl, 15 dwg, 5 tbl, 7 ex