Abstract: The present specification relates to a battery, comprising an anode, a cathode, an electrolyte disposed between the anode and the cathode, a halogen in contact with the cathode, and a metal in contact with the anode, wherein the halogen is in contact with a polymeric halogen sequestering agent (HSA) which is a polymer comprising a moiety capable of sequestering the halogen.

Abstract: The invention relates to an assembly comprising a first gelated ionic liquid film in contact with a first electrically conductive surface, wherein the first gelated ionic liquid film comprises a first ionic liquid encapsulated within a gel matrix; and a second gelated ionic liquid film in contact with a second electrically conductive surface, wherein the second gelated ionic liquid film comprises a second ionic liquid encapsulated within a gel matrix; wherein the first and second gelated ionic liquid films are in contact with each other. There is also described an electrochemical cell comprising an assembly according to the invention, and methods for producing same.