Eutectic electrolyte for the zinc based rechargeable redox static energy storage devices
AssigneesOffgrid Energy Labs Private Limited, Offgrid Energy Labs Inc.
InventorsBrindan Tulachan, Aasiya Bano Shaikh, Sumanta Chakrabarty
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Abstract
An electrolyte is provided for the zinc based rechargeable redox static energy storage devices, the electrolyte comprising one or more inorganic transition metal salt(s) of zinc; one or more Metal hydroxide(s); a eutectic solvent comprising one or more derivative(s) of methanesulfonic acid selected from its salts, one or more ammonium salt(s) one or more hydrogen bond donor(s). The electrolyte is thermally and chemically stable and has pH ranging from 5 to 7, and therefore does not facilitate evolution of hydrogen and oxygen during its application.
Claims16
An eutectic electrolyte for zinc based rechargeable redox static energy storage devices, the eutectic electrolyte comprising:
- one or more inorganic transition metal salt(s) of zinc selected from the group consisting of Zinc Chloride, Zinc Acetate, Zinc Methanesulfonate, Zinc Sulphate, Zinc triflate;
- one or more salt(s) of metal(s) selected from the group consisting of manganese, nickel, titanium and copper metal with sulphate anions, methane sulfonate anions, halides anions including chloride, bromide, organic salts of transition metal ions with anions selected from the group consisting of acetate, oxalates, formates, phosphinates, lactate, malate, citrate, benzoate, and ascorbate;
- one or more Metal hydroxide(s) selected from the group consisting of sodium hydroxide, potassium hydroxide, aluminum hydroxide, zinc hydroxide, calcium hydroxide, cesium hydroxide, magnesium hydroxide, and iron hydroxide;
- a eutectic solvent comprising one or more derivative(s) of methanesulfonic acid selected from its salts with metal ions selected from the group consisting of manganese, zinc, cerium, nickel, titanium, copper, sodium, potassium, and calcium;
- one or more ammonium salt(s) having general formula NTriX, where X can be selected from the group consisting of chloride, methanesulfonate, acetate, sulphate, triflate, and trimethanesulfonate;
- and
- one or more hydrogen bond donor(s) selected from the group consisting of urea, thiourea, glycerol, oxalic acid, acetic acid, ethylene glycol, acetamide, benzamide, adipic acid, benzoic acid, and citric acid;
- wherein the molar ratio of the derivative(s) of methanesulfonic acid, the ammonium salt(s) and the hydrogen bond donor(s) is in the range 0.5-3:2-7:8-13.
Dependencies are inferred from the claim text.