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Shenzhen Yukun Technology Co., Ltd

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Electrochemical capacitor monomer

Electrochemical capacitor monomer

  • Cname:Fully enclosed capacitors
  • Views:Times
  • Release date:2023-02-24 11:54:08
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Product introduction:           

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

Series specification table:

series name


type name


Rated voltage VR


surge voltage


Capacity range


Operating temperature range


Product life

Normal temperature cycle life: 25°C, 500,000 cycles between VR and 1/2VR, capacity decay ≤30%, internal resistance change ≤4 times

High temperature endurance life: 65℃, keep VR, 1000 hours, capacity decay ≤30%, internal resistance change ≤4 times.

 Product performance table:

modelVoltage VCapacity FAC internal resistance mΩ1KHz24h leakage current uAProduct size mm



Length A±1

Height B±1

Pitch P

Product display:

Improper use will cause electrolyte leakage and other phenomena; Compared with aluminum electrolytic capacitor, its internal resistance is large, so it can not be used in AC circuit;

1. Unlike batteries, it may be better than batteries in some applications. Sometimes it is a better way to combine the power characteristics of the capacitor with the high energy storage of the battery.

2. It can be charged to any potential within its rated voltage range and can be fully discharged. The battery works in a narrow voltage range due to its own chemical reaction. If it is over-discharged, it may cause sexual damage.

3. The state of charge and voltage constitute a simple function, while the state of charge of a battery includes a variety of complex conversions.

4. Compared with the traditional capacitor with the same volume, the battery can store more energy than the supercapacitor with the same volume. In some applications where power determines the size of energy storage devices, supercapacitors are a better way.

5. It can transmit energy pulse repeatedly without any adverse effect. On the contrary, if the battery transmits high power pulse repeatedly, its life will be greatly reduced.

6. It can be charged quickly, but the battery will be damaged if it is charged quickly.

7. It can be cycled hundreds of thousands of times, while the battery life is only a few hundred cycles

Product display:


Product Description:

         Advantages of double layer super Faraday capacitor

 High reliability, cycle life: > 500000 times 

Good frequency characteristics, high temperature resistance, low temperature rise and high adhesion 

High energy conversion efficiency 

Small loss during use 


Green power supply :

The charging circuit is simple, without the charging circuit like charging battery, and maintenance free for long-term use

product photo and desing:

It is widely used in gas meters, water meters, heat meters, meter reading systems, etc. for starting devices, detonators, tax controllers, toys, power equipment, etc

testing method:

   1. Electrostatic capacity test method:

(1) Test principle

    The test of the electrostatic capacity of the supercapacitor is to use the method of constant current discharge of the capacitor , and calculate it according to the formula.


In the formula: C - electrostatic capacity, F;

       I-constant discharge current, A;

      U1, U2 - use voltage, V;

      t-Discharge time required for U1 to U2, S

(2), test procedure

   Charge the capacitor with a current of 100A, charge the capacitor to the working voltage and keep the voltage constant for 10 seconds, then discharge the capacitor with a current of 100A, take U1 as 1.2V and U2 as 1.0V, record the discharge time within this voltage range, and the total cycle Capacitance, take the average value.

2. Stored energy test

  (1) Test principle:

      The test of supercapacitor energy is carried out by the method of discharging the capacitor with constant power to 1/2 of the working voltage with the given voltage range of the capacitor. The output energy W of the capacitor is obtained from the relationship between the constant discharge power P and the discharge time T, namely:


  (2) Test procedure

     Charge the capacitor to the working voltage with a constant current of 100A, and then keep it constant until the charging current drops to the specified current (10A for traction type, 1A for start-up type), after 5 seconds of rest, discharge the capacitor with constant power to 1/2 of the working voltage, record Discharge time and calculate magnitude. Repeat the measurement 3 times and take the average value.

3. Equivalent series resistance test (DC)

  (1) Test principle

    The internal resistance of the capacitor is measured according to the sudden change of the voltage within 10 milliseconds of the capacitor disconnecting the constant current charging circuit. That is: in the formula:

     R - the internal resistance of the capacitor;

     U0 - capacitor cut off the voltage before charging;

     Ui - cut off the voltage within 10ms after charging;

     I - cut off the current before charging.

 (2) Measurement process

    Charge the capacitor with a constant current of 100A, disconnect the charging circuit when the charging working voltage is 80%, use a sampling machine, record the voltage change value within 10 milliseconds after the capacitor is powered off, and calculate the internal resistance, repeat 3 times, and take the average value.

4. Leakage current test

   After charging the capacitor to the rated voltage with a constant current of 100A, charge the capacitor with a constant voltage for 30min at this voltage value, and then leave it open for 72h. During the first three hours, the voltage value was recorded every minute, and during the remaining time, the voltage value was recorded every ten minutes.

  Calculate the self-discharge energy loss, SDLF=1-(V/VW)2, and the calculation time points are: 0.5, 1, 8, 24, 36, 72h.

   Note: The voltage tester must have high input impedance to minimize the impact of discharge.



1) 超过标称温度的温度



2) 超过额定电压的电压



3) 逆电压或交流电压的加载






a) 直接溅水、盐水及油的环境、或处于结露状态、充满着气体状的油分或盐分的环境。

b) 充满着有害气体(硫化氢、亚硫酸、氯、氨、溴、溴化甲基等)的环境。

c) 溅上酸性及碱性溶剂的环境。

d) 阳光直射或有粉尘的环境。

e) 遭受过度的振动及冲击的环境。









Next:Gold supercapacitor2023-02-24

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