CATHODES BASED ON CARBON AIR GEL FOR LITHIUM-SULPHUR BATTERIES Russian patent published in 2024 - IPC C01B32/05 H01M10/52 H01M4/04 H01M4/139 H01M4/38 H01M4/66 H01M4/80 H01M4/1393 H01M4/583 B82B1/00 

FIELD: nanoporous materials.

SUBSTANCE: invention relates to a sulphur-doped nanoporous carbon material for use in an energy storage device. Moreover, the sulphur-doped nanoporous carbon material contains: a carbon air gel containing a fibrous morphology that has a plurality of interconnected structures, in which the plurality of interconnected structures contain a plurality of carbon crossbars having a width from 2 to 10 nm; in which a plurality of interconnected structures define a plurality of pores; elemental sulphur is located inside a pore of many pores; wherein the carbon air gel has an electrical conductivity of at least 1 S/cm; and wherein the carbon air gel has an elastic modulus of at least 0.2 GPa. The invention also relates to an interconnected cathode material without a stripper and without a binder for a lithium-sulphur battery.

EFFECT: proposed material provides a functional morphology and an optimal pore structure where optimal sulphur loadings can be achieved and where the sulphur is trapped in a size-matched medium.

9 cl, 4 ex, 7 dwg