Effect of ether-based electrolyte composition on the lithium storage performance of copper sulfide

TheKspgap enabled precipitation transformation reactions from transition metal hydroxides to sulfides for alkali metal ion storage

“…The other two reduction peaks at 1.20 and 0.85 V are responsible for the electrochemical formation of Cu 2 S and Cu respectively. 35 The electrochemical reaction equations are similar to those of the SIB. The three oxidation peaks are observed at 1.87, 2.06, and 2.28 V, corresponding to the formation of Cu 2 S, Li x CuS, and CuS, respectively.…”