Preparation method of high-performance cabbage-shaped heterostructure electrode material

A heterogeneous structure and electrode material technology, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors, etc., can solve the problem of poor adhesion to current collectors, inability to accurately control the synthesis method, and uneven material morphology, etc. problems, to achieve superior rate performance and improve electrochemical performance
CN112863887AActive Publication Date: 2021-05-28SHENYANG POLYTECHNIC UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG POLYTECHNIC UNIV
Publication Date
2021-05-28

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Abstract

The invention belongs to the field of electrode material preparation, and particularly relates to a preparation method of a high-performance cabbage-shaped heterostructure electrode material. The method comprises the following steps of pretreating foamed nickel, dissolving 2-3 mmol of nickel acetate, 4-5 mmol of cobalt acetate, 2-3 mmol of sodium molybdate, 30-40 mmol of ammonium fluoride and 2-5 g of urea into 60-100 ml of water, stirring, reacting, cooling, cleaning and drying to obtain a prepared sample, dissolving 8-9 mmol of sodium sulfide in 60-70 ml of deionized water, magnetically stirring for 45 minutes, transferring the prepared sample into the solution, transferring into a reaction kettle, keeping the temperature at 80-90 DEG C for 12 hours, naturally cooling to room temperature, cleaning for three times by using absolute ethyl alcohol and deionized water, keeping the temperature of the prepared sample at 60 DEG C for 6 hours, and drying to obtain a finished product. The problems that the material morphology is not uniform, the synthesis method cannot be accurately controlled, the conductivity is poor, and the adhesion with a current collector is poor are solved.
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Description

technical field

[0001] The invention belongs to the field of electrode material preparation, in particular to a method for preparing a high-performance cabbage-shaped heterostructure electrode material, which can be used in related fields such as batteries, capacitors, and electrocatalysis. Background technique

[0002] At present, in order to solve the problem of energy shortage and environmental pollution caused by the use of traditional energy, many countries around the world are rapidly researching and developing various pollution-free and high-performance energy storage technologies. There are two types of energy storage devices that have attracted much attention, namely are secondary batteries and supercapacitors. At present, the risk factor of the electrolyte of the battery is relatively high. When the energy storage device converts energy, it will also generate heat. When the heat accumulates to a certain extent, it may cause damage to the device or even cause an acc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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