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Linsheng Introduces The Main Features Of Automotive Supercapacitors
Total Views: 134 - Total Replies: 8
Nov 29 2018, 10:29 pm - by Bertlinsheng

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linsheng    said that although the energy density of supercapacitors is 5% or less of batteries, this energy storage method can be applied to the shortcomings of traditional batteries and short-term high peak currents. Compared with batteries, this supercapacitor has the following advantages:


First, the electric capacity is large. The supercapacitor uses activated carbon powder and activated carbon fiber as the polarizable electrode, and the area of ​​contact with the electrolyte is greatly increased. According to the calculation formula of the electric capacity, the larger the surface area of ​​the two plates, the larger the capacitance. Therefore, the capacity of the general electric double layer capacitor is easy to exceed 1F, and its appearance has suddenly jumped the capacity range of the ordinary capacitor by 3 to 4 orders of magnitude. At present, the maximum capacity of the single supercapacitor can reach 5000F;


Second, the charge and discharge life is very long, up to 500,000 times or 90000h, and the battery's charge and discharge life is difficult to exceed l000 times;


Third, it can provide high discharge current. For example, the 2700F supercapacitor has a rated discharge current of not less than 950A, and the discharge peak current can reach 1680A. Generally, the battery usually cannot have such a high discharge current, and some high discharge current batteries are in this case. The service life is greatly shortened under high discharge current;

  Fourth, it can be quickly charged in tens of seconds to several minutes, and it is extremely dangerous or almost impossible to fully charge the battery in such a short period of time;


Fifth, it can work normally in a wide temperature range (-40 ° C ~ +70 ° C), and the battery is difficult to work at high temperatures, especially in low temperature environments;


Sixth, the material of the supercapacitor is safe and non-toxic, and the lead-acid battery and the nickel-cadmium battery are all toxic. Moreover, the supercapacitors can be used in any parallel to increase the capacity. If the pressure equalization measure is adopted, it can also be used in series.


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