COMPLETELY SOLID-STATE SECONDARY LITHIUM-ION BATTERY (VERSIONS) Russian patent published in 2019 - IPC H01M10/525 H01M4/134 

FIELD: electrical engineering.

SUBSTANCE: invention relates to a fully solid-state secondary lithium-ion battery. According to the invention, a fully solid-state secondary lithium-ion battery consists of an anode which contains particles of active material, electroconductive material and solid electrolyte, where particles of active material of anode contain at least one active material selected from a group consisting of elemental silicon and SiO, and where for particles of active material of anode value A obtained according to following formula (1) is equal to 6.1 or more and 54.8 or less: formula (1) A = S_BET × d_med × D, where S_BET is specific surface area of particles of anode active material, determined by BET method (m²/g); d_med is average diameter of D50 (mcm) of anode active material particles; and D is density (g/cm³) of anode active material particles.

EFFECT: improved cycle characteristics.

6 cl, 3 dwg, 1 tbl, 14 ex