ACCUMULATOR BATTERY CELL Russian patent published in 2022 - IPC H01M10/52 H01M10/568 H01M10/569 H01M4/58 H01M4/62 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, to an accumulator battery cell with an SO₂-based electrolyte and can be used in optimised designs of lithium-ion accumulator batteries. The technical result is achieved due to the accumulator battery cell, containing a body (1), at least one positive electrode (4), at least one negative 5 electrode (5), and an SO₂-based electrolyte, containing a positive electrode with an active material of the following composition: AxM'yM"z(XO4-mSn), wherein A constitutes an alkali metal selected from a group including aluminium, sodium, calcium, zinc, and lithium; M' constitutes at least one metal selected from a group including titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, and zinc; M" constitutes at least one metal selected from the group consisting of metals of groups 4, 5, 6, 13, 14, 15, and 16 of the periodic table; X is selected from the group consisting of phosphorus and silicon; x is greater than 0, y is greater than 0, z is greater than or equal to 0, n is greater than 0, and m is less than or equal to n.

EFFECT: higher specific capacity and operating life of the accumulator battery.

16 cl, 7 dwg, 4 ex