Electrochemical Cell, Related Material, Process for Production, and Use Thereof
AssigneeIonova Technologies, Inc.
InventorsFraser Seymour, Evan Benbow
Life of this patent
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Abstract
The present invention relates to an electrochemical energy storage device referred to herein as a Metal/Ion Pseudo-Capacitor (MIPC). The MIPC stores charge through reversible metal electro-deposition and dissolution processes as anode functionality and ion adsorption/desorption processes, faradaic processes or both as cathode functionality.
Claims12
1) A Metal/Ion Pseudo-Capacitor (MIPC) comprises a multi-functional electrolyte, an anode deposition substrate (ADS), a cathode, a cathode current collector, a separator function, an anode current collector function, and packaging;
- wherein said MIPC stores electric charge by employing a multi-functional electrolyte comprising at least one redox-active cation component (M) which provides anode functionality through reversible metal electro-deposition and dissolution processes that occur upon the electrochemically active surface of said ADS, and pairs this with said cathode employing ion adsorption/desorption processes, faradaic processes or both faradaic and adsorption/desorption processes;
- wherein the multi-functional electrolyte comprises at least one cation species, at least one anion species, an ion conduction medium, and at least one phase selected from a group consisting of liquid, gel, solid, and combinations thereof;
- wherein said gel further comprises at least one gel agent selected from a group comprising an organic compound, a polymer, an inorganic compound, silica, and combinations thereof;
- wherein the composition of said multi-functional electrolyte is selected from a group consisting of ionic liquid, salt and liquid solvent, salt and gel solvent, salt and solid state ion conductor, and combinations thereof,
- wherein the liquid solvent is at least one selected from a group consisting of water and organic liquid.
10) An energy storage device comprising one or a plurality of MIPC cells,
- wherein said plurality of MIPC cells are combined with one or more additional energy device selected from a group consisting of MIPC, battery, fuel cell, energy conversion device, and any combination thereof;
- wherein said combination is an electrical configuration selected from a group consisting of series, parallel, and any combination thereof.
11) A method for preparing a MIPC comprising i) preparation of an anode deposition substrate (ADS), ii) preparation of a cathode and current collector, and iii) combination of the ADS, cathode and a multi-functional electrolyte with separator and packaging materials to form a MIPC;
- wherein the ADS is first formed and prepared prior to MIPC assembly, said preparation comprises the treatment of the electro-active surfaces of the ADS to remove impurities, oxidation and other passivation inducing products from said surfaces, thereby increasing and improving the deposition nucleation sites and the dissolution sites, said treatment by at least one method selected from a group consisting of mechanical, chemical, sonication, electrochemical, and combinations thereof;
- wherein the prepared ADS is first attached to an anode current collector by means selected from a group consisting of applying heat, applying pressure, applying a conductive adhesive, welding, sintering, and combinations thereof;
- wherein the combination of materials forming a MIPC comprises
- a/ placing at least one cathode and current collector assembly, at least one ADS, a multi-functional electrolyte, and a separator within a packaging material further comprising at least a case, at least one positive terminal, at least one negative terminal, and at least one pressure release valve;
- b/ placing the same under vacuum;
- and
- c/ sealing the MIPC.
Dependencies are inferred from the claim text.