2.7V 200F farad capacitor
Working temperature range
Rated discharge capacitance
High temperature load
High temperature storage
Compared with batteries and traditional physical capacitors, the characteristics of super capacitors are mainly reflected in:
(1) High power density. It can reach 102~104 W/kg, which is much higher than the power density level of the battery.
(2) Long cycle life. After a few seconds of high-speed deep charge-discharge cycles of 500,000 to 1 million cycles, the characteristics of the super capacitor change little, and the capacity and internal resistance are only reduced by 10% to 20%.
For supercapacitors, there are different classification methods depending on the content.
First, according to different energy storage mechanisms, supercapacitors can be divided into two categories: electric double layer capacitors and Faraday quasi capacitors. Among them, the electric double layer capacitor mainly generates adsorption energy by adsorbing on the surface of the electrode by pure electrostatic charge. Faraday quasi-capacitors mainly generate Faraday quasi-capacitance by reversible redox reaction on the surface and near the surface of Faraday quasi-capacitor active electrode materials (such as transition metal oxides and high molecular polymers), thereby realizing energy storage and conversion.
Secondly, depending on the type of electrolyte, it can be divided into two categories: water-based supercapacitors and organic supercapacitors.
In addition, depending on whether the types of active materials are the same, they can be classified into symmetric supercapacitors and asymmetric supercapacitors.
Finally, according to the state of the electrolyte, supercapacitors can be divided into two categories: solid electrolyte supercapacitors and liquid electrolyte supercapacitors.