Preparation method and application of high-capacity supercapacitor graphene conductive agent dispersion liquid
The invention provides a preparation method of high-capacity supercapacitor graphene conductive agent dispersion liquid. According to the preparation method, graphene powder is dispersed in a solventthrough hydroxyl anthraquinonyl quaternary ammonium salt, after a conductive agent is added, dispersi...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a preparation method of high-capacity supercapacitor graphene conductive agent dispersion liquid. According to the preparation method, graphene powder is dispersed in a solventthrough hydroxyl anthraquinonyl quaternary ammonium salt, after a conductive agent is added, dispersion is conducted through a nano grinding machine, and thus the graphene conductive agent dispersionliquid is obtained. According to the dispersion liquid, a preparation technology is simple, raw materials are easy to obtain, and the production cost is low. Hydroxyl anthraquinonyl quaternary ammonium salt surface-modified graphene and the composed conductive agent have good wettability and electrochemical stability; and when the high-capacity supercapacitor graphene conductive agent dispersion liquid is used for a supercapacitor electrode material, a constituted supercapacitor has low internal resistance, the high electrostatic capacity, and the good circulation characteristic.
一种高容量超级电容器石墨烯导电剂分散液的制备方法,通过羟基蒽醌基季铵盐将石墨烯 |
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