Patent ID: 8329343

Claim:
An electrode comprising: an electrode collector and an electrode active material layer, wherein a film containing a salt represented by the following formula (I) is provided on the electrode active material layer: R1A n M x (I) wherein R1 is an n-valent hydrocarbon group containing at least one structure selected from the group consisting of HS—, —S—, —S—S—, —S—C(═S)—S—, —N—C(═S)—S—, —C(═O)—S—, —O—C(═O)—S—, —S—C(═O)—S— and —S—; n represents an integer of from 1 to 4; A represents the anion selected from the group consisting of CO 2 − and SO 3 − ; M represents a metal ion selected from the group consisting of an alkali metal ion and an alkaline earth metal ion; and x represents an integer of 1 to 10.