Electrolytic binary Co and Ni sulfides in electrodes of lithium and lithium-ion low—temperature batteries

Electrolytic binary e-Co, Ni-sulfides are synthesized on aluminum supports and studied in laboratory lithium and lithium-ion batteries with the electrolytes of ethylene carbonate—dimethyl carbonate—1 M LiClO4 and propylene carbonate—dimethoxyethane—1 M LiClO4. The discharge capacity of binary sulfides in laboratory cells is higher than in the case of the corresponding individual sulfides. A 2 V lithium-ion system with e-Co, Ni sulfide and LiMn2O4 as the negative and positive electrodes, accordingly, is suggested. The discharge capacity of a lithium-ion batteries exceeds 400 mA h/g of e-Co, Ni sulfide. A relationship is established between the surface morphology of the synthesized sulfides and their discharge characteristics.