Preparation method of boron ionic liquid containing super capacitor

Abstract

The invention discloses a preparation method of a boron ionic liquid containing super capacitor. The method comprises the steps of weighing boron-containing lithium salt and an organic compound according to the mixing ratio under an argon atmosphere condition in a gloves box; agitating and heating to obtain a stable, uniform and transparent ionic liquid solution; assembling prepared active carbon electrodes into the super capacitor. The method has the advantages that the lithium ion liquid electrolyte is high in safety and stability; in addition, no additives are added; the high electrochemical voltage is able to increase the energy storage of the super capacitor on the premise that the high energy density and circulating performance are remained.

Description

technical field

[0001] The invention relates to the field of electrochemical new energy, in particular to a method for preparing a boron-containing ionic liquid supercapacitor. Background technique

[0002] Supercapacitor is a new type of green energy storage energy between physical power supply and chemical power supply, which stores energy at the interface between electrode materials and electrolytes. Its fundamental advantage lies in its electric double layer charge energy storage, which is different from chemical power batteries. There is no bulk phase change caused by chemical reactions, and it can achieve hundreds of thousands of charge and discharge cycles (10 5 - 10 6 ) times, it can fundamentally solve the problem of short battery cycle life, so the application prospect of supercapacitors will be very broad.

[0003] At present, due to the disadvantage of low voltage of water-based supercapacitors, the research and development of supercapacitors using organic sol...