Method of producing shape-conformable alkali metal-sulfur battery having a deformable and conductive quasi-solid electrode

An alkali metal-sulfur cell having a quasi-solid electrode, said cell comprising:

• (a) a deformable and electrically conductive cathode material comprising a combination of a quantity of a cathode active material, a quantity of a quasi-solid electrolyte, and a conductive additive, wherein said cathode active material contains a sulfur-containing material selected from sulfur, a metal-sulfur compound, a sulfur-carbon composite, a sulfur-graphene composite, a sulfur-graphite composite, an organic sulfur compound, a sulfur-polymer composite, or a combination thereof, and wherein said conductive additive, containing conductive filaments, contains a 3D network of electron-conducting pathways and said electrolyte contains an alkali salt dissolved in a solvent and no ion-conducting polymer dissolved or dispersed in said solvent, wherein said quasi-solid cathode contains said 3D network of electron-conducting pathways such that the cathode maintains an electrical conductivity no less than 10−6 S/cm;
• and
• (b) an anode;
• wherein said quasi-solid electrolyte has a concentration and higher than 2.5 M.