Energy storage device and a method of preparing the device
AssigneeCity University of Hong Kong
InventorsChunyi Zhi, Xinliang Li, Qi Yang, Longtao Ma
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Abstract
An energy storage device includes a cathode including an active material with a material structure of MXenes, wherein the active material includes at least one electrochemically active component; and a gelatin-based electrolyte containing an aqueous electrolytic solution disposed adjacent to the electrode. The aqueous electrolytic solution is arranged to facilitate a physical and/or a chemical transformation of at least a portion of the active material upon an operation cycle of charging and discharging of the energy storage device.
Claims23
An energy storage device, comprising:
- a cathode comprising a carbon cloth, the carbon cloth comprising an active material deposited thereupon, the active material comprising a material structure of vanadium carbide MXenes;
- an anode comprising a carbon cloth, the carbon cloth comprising zinc being deposited thereupon;
- and
- a gelatin-based electrolyte comprising an aqueous electrolytic solution that is in electrical communication with the cathode and the anode;
- wherein the gelatin-based electrolyte comprises a polyacrylamide hydrogel, and wherein the aqueous electrolytic solution comprises a high concentration salt solution containing a total concentration from about 5 M to about 21 M of metal ions;
- and
- wherein the energy storage device increases capacity upon the operation cycle of charging and discharging.
A method of preparing an energy storage device, comprising the steps of:
- providing an anode comprising a carbon cloth, the carbon cloth comprising zinc being deposited thereupon;
- providing a cathode comprising a carbon cloth, the carbon cloth comprising an active material deposited thereupon, the active material comprising a material structure of vanadium carbide MXenes;
- providing a gelatin-based electrolyte comprising an aqueous electrolytic solution that is in electrical communication with the cathode and the anode, wherein the gelatin-based electrolyte comprises a hydrogel of polyacrylamide, and wherein the aqueous electrolytic solution comprises a high concentration salt solution containing a total concentration from about 5 M to about 21 M of metal ions;
- and
- sandwiching the gelatin-based electrolyte between the anode and the cathode;
- wherein the energy storage device increases capacity upon the operation cycle of charging and discharging.
Dependencies are inferred from the claim text.