A kind of preparation method of dual ion water system energy storage device
A dual-ion, water-based technology, applied in the manufacture of hybrid/electric double-layer capacitors, structural parts, electrical components, etc., can solve the lack of multi-ion storage device design and other problems, to achieve dual-ion energy storage characteristics, excellent electrochemical performance , the effect of simple preparation method
Active Publication Date: 2021-11-16
GUILIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
However, in the aqueous environment, there is a lack of related design of multi-ion storage devices.
Method used
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Embodiment Construction
[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Those who do not indicate the specific conditions in the examples are carried out according to the conventional conditions or the conditions suggested by the manufacturer. The reagents or instruments used were not indicated by the manufacturer, and they were all conventional products that could be purchased from the market. The specific implementation mode of the present invention will be further elaborated below in conjunction with description accompanying drawing and specific implementation:
[0041] (1) The specific process of preparing CuO nano-array electrodes based on the positive electrode material is as follows:
[0042] a. The commercial metal copper sheet was ultrasonically cleaned in deionized water, acid solution and ethanol fo...
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The invention discloses a preparation method of a dual ion water system energy storage device. (1) The metal copper sheet is pretreated by cleaning, anodized under certain conditions, and sintered at a high temperature in a tube furnace to obtain CuO nano-array electrodes; (2) Commercial carbon cloth is pretreated by cleaning and passed certain conditions. Electrochemical deposition, carbon coating and high temperature carbonization to obtain VC / V 2 o 3 / C nanocomposite electrode; (3) The above two electrodes are separated by a diaphragm and assembled into an aqueous energy storage device in KOH electrolyte. This energy storage device has unique dual ion energy storage characteristics, that is, CuO and OH ‑ redox reaction, VC / V 2 o 3 / C and K + Redox reactions. Therefore, the present invention uses a simple preparation method to invent a dual-ion water system energy storage device, and its excellent electrochemical performance has great application prospects in electrochemical energy storage devices.
Description
technical field [0001] The invention relates to the field of electrochemical energy storage devices, in particular to a method for preparing a dual ion water system energy storage device Background technique [0002] With the advancement of human science and technology, the consumption of fossil energy has also caused serious environmental problems. Therefore, the development of electrochemical energy storage devices that can utilize clean energy has become a research hotspot. Among them, the aqueous supercapacitor / battery has the advantages of fast charging and discharging, long cycle life, and low price, and is considered to be an ideal energy storage device. [0003] It is well known that the storage of multiple ions can effectively increase the energy density of the device compared with the storage of single cations (Li, Na, K ions, etc.). However, in the aqueous environment, there is a lack of relevant designs for multi-ion storage devices. [0004] In view of this, ...
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IPC IPC(8): H01G11/84H01G11/86H01G11/24H01G11/30H01G11/32H01G11/46H01G11/62H01M4/26H01M4/48H01M4/583H01M10/28
CPCH01G11/24H01G11/30H01G11/32H01G11/46H01G11/62H01G11/84H01G11/86H01M4/26H01M4/48H01M4/583H01M10/28Y02E60/10Y02P70/50
Inventor 刘博天江林峰石成龙刘勇平
Owner GUILIN UNIVERSITY OF TECHNOLOGY