Preparation method of three-dimensional graphene-based nickel-molybdenum nanowire aqueous battery positive electrode

Abstract

The invention discloses a preparation method of a three-dimensional graphene-based nickel-molybdenum nanowire aqueous battery positive electrode. The invention belongs to the technical field of battery electrodes. The method comprises the following steps:S1, preparing 10mL of a graphene oxide solution; S2, selecting and adding 50 mg of nickel molybdate nanowires into the graphene oxide solution, dispersing and mixing the mixed solution by using an ultrasonic disperser; S3, preparing a pre-processed interdigital micromold, and treating the interdigital micromold for 5 minutes by utilizing O2 plasma; and S4, taking the interdigital micromold, injecting the graphene oxide and nickel molybdate nanowire dispersion liquid into the interdigital micromold, and carrying out freeze drying to obtainthe microelectrode. In the invention, the manufacturing process is simple, the production cost can be reduced, and good electrochemical performance can be guaranteed in the use process.

Description

technical field [0001] The invention relates to the technical field of battery electrodes, in particular to a method for preparing a three-dimensional graphene-based nickel-molybdenum nanowire aqueous battery positive electrode. Background technique [0002] The positive electrode of the battery is a component in the battery, which is used as the two ends of the input or output current in the conductive medium (solid, gas, vacuum or electrolyte solution). The pole where the current is input is called the anode or positive pole, and the pole where the current is released is called the cathode or negative pole. [0003] Because the battery has many advantages such as high specific energy, it is considered as an important device for power supply. With the development of modern manufacturing technology, batteries will be widely used in electronic equipment, communication devices and other fields. [0004] When the traditional battery positive electrode is prepared, the prepara...

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Problems solved by technology

[0004] When the traditional battery positive electrode is prepared, the preparation process is complicated, which will increase the production cost. At the same time, the prepared battery positive electrode has poor electrochemical performance during use, which affects the use of the battery positive electrode. Therefore, there is an urgent need for a convenient manufacturing method. And the preparation method of the positive electrode of the battery that improves electrochemical performance

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