超级电容器从储能机理上面分的话，超级电容器分为双层电容器和赝电容器。是一种新型储能装置，它具有充电时间短、使用寿命长、温度特性好、节约能源和绿色环保等特点。超级电容器用途广泛。

　　Super capacitor from the energy storage mechanism above, super capacitor is divided into double-layer capacitor and pseudo capacitor. It has the characteristics of short charging time, long service life, good temperature characteristics, energy saving and environmental protection. Supercapacitors are widely used.

　　超级电容器又名电化学电容器，双电层电容器、黄金电容、法拉电容，是从上世纪七、八十年代发展起来的通过极化电解质来储能的一种电化学元件。

　　Supercapacitor, also known as electrochemical capacitor, double-layer capacitor, gold capacitor, farad capacitor, is an electrochemical element developed in the 1970s and 1980s to store energy through polarized electrolyte.

　　超级电容器是一种介于传统电容器与电池之间、具有特殊性能的电源，主要依靠双电层和氧化还原假电容电荷储存电能。

　　Supercapacitor is a kind of power supply with special performance between traditional capacitor and battery. It mainly relies on double layer and redox pseudo capacitor charge to store electric energy.

　　在其储能的过程并不发生化学反应，这种储能过程是可逆的，也正因为此超级电容器可以反复充放电数十万次。其基本原理和其它种类的双电层电容器一样，都是利用活性炭多孔电极和电解质组成的双电层结构获得超大的容量。

　　There is no chemical reaction in the process of energy storage, which is reversible, because the supercapacitor can charge and discharge hundreds of thousands of times. Its basic principle is the same as other kinds of electric double-layer capacitor, which is composed of activated carbon porous electrode and electrolyte to obtain super large capacity.

　　超级电容器原理是利用双电层原理的电容器。当外加电压加到超级电容器的两个极板上时，与普通电容器一样，极板的正电极存储正电荷，负极板存储负电荷，在超级电容器的两极板上电荷产生的电场作用下，在电解液与电极间的界面上形成相反的电荷，以平衡电解液的内电场，这种正电荷与负电荷在两个不同相之间的接触面上，以正负电荷之间极短间隙排列在相反的位置上，这个电荷分布层叫做双电层，因此电容量非常大。

　　The principle of supercapacitor is a capacitor based on the principle of double electric layer. When the applied voltage is applied to the two plates of the supercapacitor, the positive electrode of the supercapacitor stores the positive charge and the negative electrode stores the negative charge. Under the electric field generated by the charge on the polar plate of the supercapacitor, the opposite charge is formed on the interface between the electrolyte and the electrode to balance the internal electric field of the electrolyte The contact surface between the same phase is arranged in the opposite position with very short gap between positive and negative charges. This charge distribution layer is called electric double layer, so the capacitance is very large.

　　当两极板间电势低于电解液的氧化还原电极电位时，电解液界面上电荷不会脱离电解液，超级电容器为正常工作状态，如电容器两端电压超过电解液的氧化还原电极电位时，电解液将分解，为非正常状态。由于随着超级电容器放电 ，正、负极板上的电荷被外电路泄放，电解液的界面上的电荷相应减少。

　　When the potential between the two plates is lower than the redox electrode potential of the electrolyte, the charge on the electrolyte interface will not separate from the electrolyte, and the supercapacitor will work normally. If the voltage at both ends of the capacitor exceeds the redox electrode potential of the electrolyte, the electrolyte will decompose into an abnormal state. With the discharge of the supercapacitor, the charge on the positive and negative plates is discharged by the external circuit, and the charge on the interface of the electrolyte decreases accordingly.

　　超级电容器的充放电过程始终是物理过程，没有化学反应。因此性能是稳定的，与利用化学反应的蓄电池是不同的。超级电容器突出优点是功率密度高、充放电时间短、循环寿命长、工作温度范围宽，是世界上已投入量产的双电层电容器中容量大的一种。

　　The charging and discharging process of supercapacitor is always a physical process without chemical reaction. Therefore, the performance is stable, which is different from the battery using chemical reaction. The outstanding advantages of supercapacitor are high power density, short charge and discharge time, long cycle life and wide working temperature range. It is one of the large capacity electric double-layer capacitors put into mass production in the world.