Electrode covering for electrochemical cells

In an alkali metal-halogen electrochemical cell comprising anode and cathode electrodes and an operatively associated electrode, the improvement comprising:

• a covering at one or more interfaces of the electrodes and the electrolyte, the covering comprising a non-fabric, continuous film of anode ion impermeable substrate material having a uniform unit weight and perforated with a pattern of openings, each opening having a desired shape to provide for anode ion flow therethrough, wherein the substrate material is uniformly coated with an organic electron donor material.

In an alkali metal-halogen electrochemical cell wherein an alkali metal anode has a surface in contact with a solid electrolyte, the improvement comprising:

• a covering at the interface of the electrodes on the anode surface, the covering comprising a non-fabric, continuous film of anode ion impermeable substrate material having a uniform unit weight and perforated with a pattern of openings, each opening having a desired shape to provide for anode ion flow therethrough, wherein the substrate material is uniformly coated with an organic electron donor material.

In a lithium-halogen electrochemical cell wherein a lithium anode has a surface in operative contact with a solid electrolyte, the improvement comprising:

• a covering adhered to the lithium anode surface, the covering comprising a non-fabric, continuous film of anode ion impermeable substrate material having a uniform unit weight and perforated with a pattern of openings, each opening having a desired shape to provide for anode ion flow therethrough, wherein the substrate material is uniformly coated with an organic electron donor material.

In an alkali metal-oxyhalide electrochemical cell wherein an alkali metal anode has a surface in operative contact with a liquid cathode/electrolyte, the improvement comprising:

• a covering on the anode surface, the covering comprising a non-fabric, continuous film of anode ion impermeable substrate material having a uniform unit weight and perforated with a pattern of openings, each opening having a desired shape to provide for anode ion flow therethrough, wherein the substrate material is uniformly coated with an organic electron donor material.

In an alkali metal-oxyhalide electrochemical cell wherein a lithium anode has a surface in operative contact with a liquid cathode/electrolyte, the improvement comprising:

• a covering adhered to the lithium anode surface, the covering comprising a non-fabric, continuous film of anode ion impermeable substrate material having a uniform unit weight and perforated with a pattern of openings, each opening having a desired shape to provide for anode ion flow therethrough, wherein the substrate material is uniformly coated with an organic electron donor material.