CPC H01M 10/052 (2013.01) [H01M 4/382 (2013.01); H01M 10/0585 (2013.01); H01M 50/109 (2021.01); H01M 50/437 (2021.01); H01M 50/44 (2021.01); H01M 50/446 (2021.01); H01M 50/451 (2021.01); H01M 50/454 (2021.01)] | 15 Claims |
1. A Li—S battery cell comprising
a Sulphur-containing cathode,
a Lithium-containing anode,
a non-woven glass fiber separator made of glass fibers having diameters below 2 microns, in between the cathode and anode
with an electrolyte on both sides of the glass fiber separator filling interspaces between the anode and the cathode;
wherein the glass fiber separator is coated with a carbon particle coating comprising a mixture of a polymer and electrically conductive nano-sized carbon particles for preventing polysulfides from migrating from the Sulphur-containing cathode to the Lithium anode,
wherein the glass fiber separator abuts the Sulphur-containing cathode, wherein the carbon particle coating is oriented towards the cathode and is in electrical contact with the cathode,
wherein the carbon particle coating has a thickness in the interval of 10-80 microns, and
wherein the carbon loading in the carbon particle coating is in the interval of 0.5-1 mg/cm2.
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