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Aqueous zinc ion battery additive, electrolyte prepared from aqueous zinc ion battery additive and application of aqueous zinc ion battery additive

A zinc-ion battery, water-based electrolyte technology, applied in secondary batteries, circuits, electrical components, etc., to achieve the effects of low price, wide application range, great application prospects and research value

Pending Publication Date: 2022-05-06
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although Zn-ion batteries are considered to be an important alternative to Li-ion batteries, the dendrite problem and side reactions are still the main obstacles limiting their development

Method used

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  • Aqueous zinc ion battery additive, electrolyte prepared from aqueous zinc ion battery additive and application of aqueous zinc ion battery additive
  • Aqueous zinc ion battery additive, electrolyte prepared from aqueous zinc ion battery additive and application of aqueous zinc ion battery additive
  • Aqueous zinc ion battery additive, electrolyte prepared from aqueous zinc ion battery additive and application of aqueous zinc ion battery additive

Examples

Experimental program
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Effect test

Embodiment 1

[0030] This embodiment provides a method for preparing an aqueous zinc-ion battery electrolyte and the aqueous zinc-ion battery electrolyte and corresponding batteries prepared by the method. The method includes: adding methanol to the zinc trifluoromethanesulfonate solution , the volume ratio of methanol to water is 1:3, and then the 1mol / L zinc trifluoromethanesulfonate mixed solution electrolyte is obtained; the 1mol / L zinc trifluoromethanesulfonate aqueous solution is used as the electrolyte; the manganese dioxide coated The stainless steel foil is used as the positive electrode, the zinc sheet is used as the negative electrode, the glass fiber is used as the separator, and the electrolyte is a mixed solution of 1mol / L zinc trifluoromethanesulfonate with methanol, and a 2032 button zinc-ion battery is assembled. And the electrolyte is 1mol / L zinc trifluoromethanesulfonate aqueous solution as a comparison group, and the 2032 button zinc ion battery is assembled under the sam...

Embodiment 2

[0032] This embodiment provides a method for preparing an aqueous zinc-ion battery electrolyte and the aqueous zinc-ion battery electrolyte and corresponding batteries prepared by the method. The method includes: adding methanol to the zinc trifluoromethanesulfonate solution , the volume ratio of methanol to water is 1:3, and then a 1mol / L zinc trifluoromethanesulfonate mixed solution is obtained as an electrolyte; a 1mol / L zinc trifluoromethanesulfonate aqueous solution is used as an electrolyte; Manganese stainless steel foil is used as positive electrode, zinc sheet is used as negative electrode, glass fiber is used as diaphragm, electrolyte is 1mol / L zinc trifluoromethanesulfonate mixed solution with methanol, and 2032 button zinc ion battery is assembled. And the electrolyte is 1mol / L zinc trifluoromethanesulfonate aqueous solution as a comparison group, and the 2032 button zinc ion battery is assembled under the same conditions; the electrochemical performance test of the...

Embodiment 3

[0034] This embodiment provides a method for preparing an aqueous zinc-ion battery electrolyte and the aqueous zinc-ion battery electrolyte and corresponding batteries prepared by the method. The method includes: adding methanol to the zinc trifluoromethanesulfonate solution , the volume ratio of methanol to water is 1:3, and then the 1mol / L zinc trifluoromethanesulfonate mixed solution electrolyte is obtained; the 1mol / L zinc trifluoromethanesulfonate aqueous solution is used as the electrolyte; the manganese dioxide coated The stainless steel foil is used as the positive electrode, the zinc sheet is used as the negative electrode, the glass fiber is used as the separator, and the electrolyte is a mixed solution of 1mol / L zinc trifluoromethanesulfonate with methanol, and a 2032 button zinc-ion battery is assembled. And the electrolytic solution is 1mol / L zinc trifluoromethanesulfonate aqueous solution as contrast group, assembles 2032 type button zinc ion battery with the same...

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PUM

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Abstract

The invention relates to an aqueous zinc ion battery additive, an electrolyte containing the additive and application, the additive is one or more of methanol, ethanol and ethylene glycol, and the electrolyte comprises a solvent and a solute. Wherein the solvent is water, the solute is one or more of zinc trifluoromethanesulfonate, zinc sulfate and zinc chloride, and the volume ratio of the additive to the solvent water is 1: (1-10). The additive provided by the invention can be mixed with water in any proportion, and can form hydrogen bonds with water. The interaction between the additive provided by the invention and water can effectively inhibit the adverse reaction in the water-based zinc ion battery, thereby improving the electrochemical performance of the water-based zinc ion battery.

Description

Technical field [0001] The invention belongs to the field of aqueous zinc ion batteries, and particularly relates to an additive for aqueous zinc ion batteries and an electrolyte prepared therefrom and its application. Background technique [0002] Due to safety concerns and resource shortages of lithium-ion batteries, developing new generation energy storage devices as alternatives has attracted increasing research interest. As one of the most promising alternatives, aqueous rechargeable zinc-ion batteries have entered the field of view of researchers, with the advantages of safety, environmental protection, and high theoretical capacity. Although zinc-ion batteries are considered an important alternative to lithium-ion batteries, dendrite problems and side reactions are still the main obstacles limiting their development. To overcome these obstacles, many strategies have been explored to modify zinc anodes or perform electrolyte design, such as surface coating modificatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/36H01M10/38
CPCH01M10/36H01M10/38Y02P70/50
Inventor 于浩林显森葛林恒刘伟良任慢慢杨志洲
Owner QILU UNIV OF TECH
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