Super capacitor charcoal electrode material, super capacitor charcoal electrode, preparation method of material, and preparation method of electrode

Abstract

The invention discloses a method for preparing a super capacitor charcoal electrode material by using coal liquefaction aromatic hydrocarbons, and the charcoal electrode material prepared through the method. The method comprises the following steps: sequentially stabilizing, charring and activating the coal liquefaction aromatic hydrocarbons, washing a product obtained after the activation, and drying, wherein eh ash content of the coal liquefaction aromatic hydrocarbons does not exceed 3000ppm. The invention also discloses a method for making a charcoal electrode by using the charcoal electrode material, and the charcoal electrode. The specific capacity of the charcoal electrode is effectively improved in the invention.

Description

technical field

[0001] The invention relates to a method for preparing a carbon electrode material for a supercapacitor by using coal liquefied aromatics, a supercapacitor carbon electrode comprising the carbon electrode material and a manufacturing method thereof. Background technique

[0002] Supercapacitors (Supercapacitors), also known as electrochemical capacitors, are a new type of energy storage device developed in recent years with performance between traditional capacitors and secondary batteries. Its main performance features are: both the high specific energy of the secondary battery and the high specific power of the traditional capacitor; the power density can reach 1-10kW / kg, which is equivalent to 5-10 times that of the battery; the charging and discharging speed is fast, and it can be used in several The charge and discharge are completed within seconds to minutes, and the charge and discharge efficiency is high, which can be ≥90%; the cycle performance is go...

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