AMORPHOUS MOLYBDENUM SULFIDE ELECTRODES FOR NONAQUEOUS ELECTROCHEMICAL-CELLS

A series of amorphous molybdenum sulfides, aMoS//21, aMo//2S//5 and aMoS//3, have been investigated as candidate nonaqueous storage battery electrodes. Electrochemical performance is dependent on the stoichiometry of the molybdenum sulfide, as well as the details of the cycling regime. Amorphous molybdenum trisulfide (aMoS//3) shows the highest energy density, as well as the details of the cycling regime. Amorphous molybdenum trisulfide (aMoS//3) shows the highest energy density and longest cycle life of the three compounds. Four equivalents are discharged in the first cycle; three equivalents can be recharged and cycled at an average voltage of about 1. 9v in excess of 200 cycles to 50% of initial recharge capacity.