Bipolar current collector for zinc bromine static battery apparatus and method of preparation thereof

A Zinc Bromine Static Battery (ZBSB) apparatus, comprising:

• a first cell that comprises a first cathode layer;
• a second cell that comprises a second cathode layer;
• and
• a bipolar current collector disposed between the first cell and the second cell;
• wherein the bipolar current collector comprises:
• a first electrically conductive layer comprising a polyethylene based polymer and an electrically conductive agent, wherein the first electrically conductive layer is in contact with the first cathode layer of the first cell;
• and
• a second electrically conductive layer that is attached to the first electrically conductive layer, wherein the second electrically conductive layer comprises the polyethylene based polymer and graphite, wherein each of the first cell and the second cell of the ZBSB apparatus is independent of a preinstalled anode electrode, and wherein the second electrically conductive layer is configured to dynamically operate as an anode layer of the second cell when in operation.

A method of preparation of a bipolar current collector for a Zinc Bromine Static Battery (ZBSB) apparatus, the method comprising:

• adding an electrically conductive agent on a substrate made of a polyethylene based polymer to form a first electrically conductive layer;
• adding a graphite layer on a substrate made of a polyethylene based polymer to form a second electrically conductive layer;
• and
• joining the formed first electrically conductive layer with the formed second electrically conductive layer to form the bipolar current collector for the ZBSB apparatus.