Water-based rechargeable zinc ion battery alloy type negative electrode material and preparation method and application thereof

A zinc-ion battery and anode material technology, applied in battery electrodes, secondary batteries, sustainable manufacturing/processing, etc., can solve the problems of little research, reduced working life, and easy formation of dendrites, etc., to reduce production Cost, increase binding force, effect of increasing binding force

Active Publication Date: 2020-11-10
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Anode materials play a key role in the performance of rechargeable secondary batteries, however, there are very few studies on anode materials for aqueous Zn-ion rechargeable batteries
Metal zinc foil is the most commonly used negative electrode material, b

Method used

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  • Water-based rechargeable zinc ion battery alloy type negative electrode material and preparation method and application thereof
  • Water-based rechargeable zinc ion battery alloy type negative electrode material and preparation method and application thereof
  • Water-based rechargeable zinc ion battery alloy type negative electrode material and preparation method and application thereof

Examples

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Example Embodiment

[0045]According to a third embodiment of the present invention, a water-based zinc-ion battery is provided, and the negative electrode is a zinc saline solution, a zinc salt organic solution or a zinc salt organic solution or zinc salt. Solid electrolyte.

[0046]According to a fourth embodiment of the present invention, there is provided an application of the above aqua-bonded zinc-type battery alloy type negative electrode material as an aqueous zinc metal battery zinc metal negative electrode current collector.

[0047]The inert metal monomi in the present invention may have a resistance to the Zn alloying or at low temperatures, and when deposited an appropriate amount of inert metal, it can be used as a nuclear bit, reducing nuclear barrier, and reduces the core. Overotic, effectively inhibit zinc graft growth, forming non-denyed zinc negative electrode.

[0048]In order to make it possible to understand the technical solution of the present invention more clearly, the technical solutio...

Example Embodiment

[0049]Example 1

[0050]In the carbon cloth collector in 1 mACM-2The current density, in the electroplating liquid per liter of the antimony ion concentration, the constant current is deposited, and 15 min is deposited under a temperature without stirring, and then washed with ethanol and deionized water, 60 degrees Celsius in a vacuum oven is dried, and finally After heating at 220 ° C for 2 hours under conditions having a vacuum of 10 Pa, a alloy type negative electrode material carbon cloth / antimony for water-based zinc-based cells can be obtained.

[0051]Main application: Used as alloy type negative electrode materials for water-based zinc cells, assembles aqueous zinc ion semi-battery, prepared carbon cloth / antimony for an anode material of aqueous zinc-ion battery, a zinc foil for the electrode and a reference electrode, 2M trifluoromethanesulfonate or zinc sulfate is an electrolyte, assembled and electrochemical testing under normal temperature.

[0052]Secondary application: Use...

Example Embodiment

[0053]Example 2

[0054]In the titanium foil (Ti) current collector with 1 mA cm-2The current density is deposited at a concentration of 0.006 moles per liter of the antimony ion concentration, and the constant current is deposited, 10 min is deposited under a temperature without stirring, and then washed with ethanol and deionized water, 60 degrees Celsius in a vacuum oven dry, finally After heating at 340 ° C for 0.5 h at a temperature of 10 Pa, it is preferable to obtain a alloy negative electrode material Ti / Sb for water-based zinc ion batteries.

[0055]Used as an alloy type negative electrode material of a water-based zinc battery, an assembled aqueous zinc ion semi-battery, the prepared Ti / Sb is used as a negative electrode material of aqueous zinc-ion battery, and the zinc foil is used for the electrode and the reference electrode, with 2 moles per liter. Zinc-sulfate or zinc sulfate is an electrolyte, assembled and electrochemical testing under normal temperature.

[0056]It is ...

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Abstract

The invention discloses a water-based rechargeable zinc ion battery alloy type negative electrode material and a preparation method and application thereof, and the preparation method comprises the following steps: electrochemically depositing a particle layer of a specific metal simple substance on a current collector, then performing heating to 50-450 DEG C under a vacuum condition, and treatingfor 0.1-5 hours; wherein the current collector is carbon cloth, carbon fiber paper, graphene paper, MXene, stainless steel foil or titanium foil, and the metal simple substance is antimony, cobalt, nickel, germanium, copper, silver or gold. The material prepared by the invention can be used as a dendritic-crystal-free alloy type negative electrode material and has high theoretical specific capacity; and the deposited metals can be used as nucleation seeds to effectively inhibit zinc dendrites, and the electrode material can reduce nucleation barriers, reduce nucleation overpotential, realizeuniform zinc deposition, effectively inhibit growth of the zinc dendrites and better exert the cycle stability of the zinc dendrites.

Description

technical field [0001] The invention belongs to the field of water system zinc battery negative electrodes, and relates to a water system rechargeable zinc ion battery alloy type negative electrode material and a preparation method and application thereof. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] At present, the global energy storage industry still maintains a relatively fast development speed. There is an urgent need for rechargeable and dischargeable secondary batteries in grid energy storage, base station backup power supply, household optical storage systems, and electric vehicle optical storage charging stations. The demand for batteries is increasing. Compar...

Claims

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Application Information

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IPC IPC(8): H01M4/42H01M4/66H01M10/38
CPCH01M4/42H01M4/662H01M10/38Y02E60/10Y02P70/50
Inventor 冯金奎田园安永灵
Owner SHANDONG UNIV
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