A polydopamine-coated mos 2 -Porous carbon supercapacitor material and its preparation method

A technology of supercapacitor and polydopamine, which is applied in the manufacture of hybrid/electric double-layer capacitors, electrodes of hybrid capacitors, etc., can solve the problems of reducing the electronic conductivity of capacitor materials, expensive precious metal materials, and low concentration of conductive ions. The transport of electrons, the effect of promoting transport and diffusion, and excellent electrical conductivity
CN110676068BActive Publication Date: 2021-12-03江西高信前沿科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
江西高信前沿科技有限公司
Publication Date
2021-12-03
Patent Text Reader

Abstract

The invention relates to the technical field of supercapacitors, and discloses a polydopamine-coated MoS 2 ‑Porous carbon supercapacitor material and its preparation method, including the following formula raw materials: N / S co-doped porous carbon, ammonium molybdate, sodium citrate, sodium sulfide nonahydrate, dopamine hydrochloride. The polydopamine-coated MoS 2 ‑Porous carbon supercapacitor material and its preparation method, the doping of N / P heteroatoms can adjust the nanoporous structure of porous carbon, which can be well infiltrated and contacted with the electrolyte, and its excellent electrical conductivity promotes the metal Transport and diffusion of ions and charges, nano-MoS prepared by in situ method 2 Uniformly grown on the surface of porous carbon materials, nano-MoS 2 With a huge active specific surface area, it can deintercalate the charge, and the polydopamine-coated electrode material with a high degree of cross-linking strengthens the flexibility and tensile strength of the material, and improves the rate performance and electrochemical cycle stability of the supercapacitor. .
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Description

technical field

[0001] The invention relates to the technical field of supercapacitors, specifically a polydopamine-coated MoS 2 - Porous carbon supercapacitor material and its preparation method. Background technique

[0002] A supercapacitor is a new type of energy storage device between a traditional capacitor and a rechargeable battery. It not only has the energy storage characteristics of a battery, but also has the characteristics of fast charge and discharge of a capacitor. The supercapacitor has the advantages of fast charging speed, long cycle life, strong discharge capacity, high energy conversion efficiency, and high power density. It is an ideal Green environmental protection power supply.

[0003] Electric double layer capacitors mainly include metal oxide electrode supercapacitors, such as RuO 2 , MnO 2 、 Co 2 o 3 , V 2 o 5 and other metal oxide materials, carbon electrode double-layer supercapacitors such as activated carbon fibers, carbon aerogels, ca...

Claims

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