Patent ID: 7482096

Claim:
A non-aqueous primary electrochemical cell, comprising: an active metal anode, wherein the active metal is selected from the group consisting of alkali or alkaline earth metals or alloys thereof; a cathode depolarizer/electrolyte solvent comprising SOCl 2 ; a dissolved electrolyte salt containing a cation of the active metal and a halo-containing anion; and wherein the active metal anode is coated with an active metal ion-conducting protective film comprising the reaction product of the active metal anode material with one or more anode protective film forming agents comprising phosphate, wherein the one or more anode protective film forming agents comprises an agent selected from the group consisting of H 3 PO 4 , HPO 3 , XH 2 PO 4 , X 2 HPO 4 , NH 2 PO 4 and mixtures thereof, and mixtures thereof with an agent selected from the group consisting of H 2 SO 4 and XHSO 4 and mixtures thereof, where X is an atom of the alkali metal and R is an alkyl group.