Microporous conductive sheet electrode and processing technology thereof
A processing technology and conductive sheet technology, applied in the field of microporous conductive sheet electrode and its processing technology, can solve the problems of poor stability, low reliability, and short life of supercapacitors, and achieve good electrical and thermal conductivity and large surface area.
Inactive Publication Date: 2018-06-29
GUANGDONG MENLO ELECTRIC POWER
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Problems solved by technology
This means a longer process and additional production costs for wet electrode technology compared to dry electrode technology
During the operation of supercapacitors, solvent impurities will react to produce additional substances, which will affect the performance of electrodes and electrolytes
The gas produced by the reaction will accelerate the aging of the supercapacitor
Therefore, supercapacitors using wet electrode technology have a relatively short lifespan, low reliability, and poor stability
On the same day, due to the presence of adhesives in the current dry electrodes, the adhesives will block a certain number of gaps in the electrodes, affecting the electrical and thermal conductivity of the electrodes, and therefore weakening the performance of the supercapacitor
Method used
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[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0033] see figure 1 , figure 2 , image 3 with Figure 5 Shown, a kind of microporous conductive plate electrode comprises graphene electrode body 10, and described graphene electrode body 10 is made of graphene material 1 and conductive framework 2, and conductive framework 2 is three-dimensional network structure, and conductive framework 2 has several Cavities 21, the cavities 21 communicate with the surface of the conductive framework 2, and the cavities 21 communicate with each other, the graphene material 1 is filled in the cavities 21, and co-extruded with the conductive framework 2 to form the graphene electrode body 10, graphite The graphene electrode body 10 has several micropores 3 , and the micropores 3 communicate with the surface of the graphene electrode body 10 .
[0034] The conductive skeleton 2 is a foamed metal aluminum skeleton...
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Abstract
The invention relates to a microporous conductive sheet electrode and a processing technology thereof. The microporous conductive sheet electrode comprises a graphene electrode body, wherein the graphene electrode body comprises a graphene material and a conductive framework which are combined together and comprises a plurality of micropores, and the micropores are communicated with the surface ofthe graphene electrode body. According to the processing technology of the microporous conductive plate electrode, an adhesive is not needed, and graphene powder as well as graphene and a conductiveskeleton are combined into a stable mass by the aid of a support by the conductive skeleton and in combination with extrusion force of certain strength; moreover, certain micropores (pores) are also formed between the graphene powder, so that cations in an electrolyte can enter and exit from the micropores when the electrode is used as a supercapacitor electrode.
Description
technical field [0001] The invention relates to electronic materials, in particular to a microporous conductive sheet electrode and its processing technology. Background technique [0002] Supercapacitors are also called electrochemical capacitors, gold capacitors, and Faraday capacitors; including electric double layer capacitors and pseudocapacitors, which store energy by polarizing electrolytes. It is an electrochemical element with reversible energy storage process, which can be repeatedly charged and discharged hundreds of thousands of times. [0003] The core component of a supercapacitor is the electrode. The manufacturing process of the electrode is currently divided into two technologies: dry electrode and wet electrode. Dry electrode technology is only processed into electrodes by dry mixing activated carbon powder and binder. Wet electrode technology In the process of making electrodes, in addition to activated carbon powder and binders, liquid solvents need to ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01G11/24H01G11/32H01G11/86H01M4/133H01M4/1393
CPCH01G11/24H01G11/32H01G11/86H01M4/133H01M4/1393Y02E60/10Y02E60/13
Inventor 孔星
Owner GUANGDONG MENLO ELECTRIC POWER