How to distinguish between super capacitor and battery

First of all, there is no electrochemical process in the charging and discharging process of the supercapacitor based on the electric double layer principle. Therefore, the voltage of the supercapacitor can be released to zero, so the two ends of the supercapacitor are short-circuited during the storage process of the electric double layer supercapacitor, which means that the supercapacitor is not expected to be charged or voltage when not in use. The voltage of the battery is not allowed to be discharged to zero and the positive and negative electrodes are not allowed to be short-circuited, which will form a short circuit and damage the battery. Therefore, it can be simply judged simply from whether the usual two electrodes are short-circuited. Of course, it is also very effective to use whether it can be discharged to zero as the difference between the supercapacitor and the battery; second, in theory, because the two electrodes of the supercapacitor are symmetrical, it allows reverse voltage operation, and the battery never It is also impossible to work with reverse voltage. Third, the connection between the voltage and the charge in the charging process of the electric double layer principle is a linear connection, but the connection between the voltage and the charge of the battery is not a linear connection. The assumption is that the distinction between electrochemical supercapacitors and storage batteries is more difficult than the distinction between supercapacitors and storage batteries based on the electric double layer principle. The reason is that the principles of electrochemical supercapacitors and batteries are the same. The difference is that there is a part of the electric double layer effect of electrochemical supercapacitors as part of energy storage. If there is no such point, it is not essentially a supercapacitor. ; Assuming the difference in demand between electrochemical supercapacitors and batteries, one can start with energy density. That is, the energy storage of electrochemical supercapacitors is much lower than that of batteries. Therefore, electrochemical capacitors and batteries can be distinguished from the comparison of discharge capabilities. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Analysis of the types and advantages and disadvantages of lithium batteries