Zinc composite electrode material, preparation method thereof and battery
A composite electrode, working electrode technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problem that the effect needs to be improved
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[0040] figure 1 A partially enlarged schematic diagram of an optical microscope of the dendritic zinc-based crystal of the zinc composite electrode material provided by the embodiments of the present invention; figure 2 The X-ray diffraction pattern of the dendritic zinc-based crystals of the zinc composite electrode material provided by the embodiments of the present invention. see figure 1 and figure 2 , the embodiment of the present invention provides a kind of preparation method of zinc composite electrode material, and this method specifically comprises:
[0041] The aqueous electrolyte containing soluble zinc salt is used as the electrolyte, the solid metal zinc material is used as the anode, and the zinc plate is used as the cathode, and dendritic zinc-based dendrites are deposited on the surface of the cathode by electrochemical cathodic reduction; among them, the dendritic zinc-based dendrites It is a zinc composite electrode material with dendrite-like appearanc...
Embodiment 1
[0060] This embodiment provides a battery, which is prepared by the following steps:
[0061] S1: At room temperature, weigh an appropriate amount of solid potassium hydroxide with an electronic balance, dissolve it in an appropriate amount of deionized water, and prepare an alkaline aqueous electrolyte of 0.1M potassium hydroxide;
[0062] S2: Weigh an appropriate amount of zinc oxide solid powder with an electronic balance, dissolve it in the alkaline aqueous electrolyte in step S1, and form an alkaline aqueous electrolyte containing 0.01M zinc salt in the form of zincate anion;
[0063] S3: Use the zinc plate with a purity of more than 95% as the working electrode and the counter electrode, and the mercury / mercury oxide standard electrode as the reference electrode, and immerse it in the alkaline aqueous electrolyte containing zinc salt prepared in step S2 to construct an electrochemical method. Deposition reaction device;
[0064] S4: Using GamryInterface1000E electrochem...
Embodiment 2
[0069] This embodiment provides a battery, which is prepared by the following steps:
[0070] S1: At room temperature, weigh an appropriate amount of solid potassium hydroxide with an electronic balance, dissolve it in an appropriate amount of deionized water, and prepare an alkaline aqueous electrolyte of 15M potassium hydroxide;
[0071] S2: Weigh an appropriate amount of zinc oxide solid powder with an electronic balance, dissolve it in the alkaline aqueous electrolyte in step S1, and form an alkaline aqueous electrolyte containing 5M soluble zinc salt in the form of zincate anion;
[0072] S3: use the zinc plate with a purity of more than 95% as the working electrode and the counter electrode respectively, and immerse it in the alkaline aqueous electrolyte containing zinc salt prepared in step S2 to construct an electrochemical deposition reaction device;
[0073]S4: Use the GamryInterface1000E electrochemical workstation as a constant current source to apply a negative cu...
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