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Lithium-ion hybrid capacitor monomer

Lithium-ion hybrid capacitor monomer

  • Cname:Farah capacitance
  • Views:Times
  • Release date:2022-03-21 15:32:59
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  • Features
  • Parameter

Product name: Double layer gold capacitor monomer 3.8V500F

     Farad capacitors , also known as double capacitors , gold capacitors , and supercapacitors , are chemical components developed in the 1970s and 1980s. Supercapacitors store energy through polarized electrolytes, but no chemical reaction occurs, and the energy storage process is reversible, which is why supercapacitors can be repeatedly charged and discharged hundreds of thousands of times. The difference between the amount of Farad capacitance and the ordinary capacitor is the difference in capacity first.


       For supercapacitors, there are different classification methods according to different contents. 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 stored energy through the adsorption of pure electrostatic charges on the electrode surface. Faraday quasi-capacitors mainly generate Faraday quasi-capacitance through reversible redox reactions on and near the surface of Faraday quasi-capacitance active electrode materials (such as transition metal oxides and polymers), thereby realizing energy storage and conversion. Secondly, according to the type of electrolyte, it can be divided into two categories: aqueous supercapacitors and organic supercapacitors. In addition, according to whether the type of active material is the same, it can be divided into symmetrical supercapacitors and asymmetrical supercapacitors. After Z, according to the state of the electrolyte, supercapacitors can be divided into two categories: solid electrolyte supercapacitors and liquid electrolyte supercapacitors.

Lifespan: The internal resistance of the supercapacitor increases, the capacity decreases within the specified parameter range, and its effective use time can be extended, which is generally related to its characteristics. What affects the life is the drying of the activity, the increase of the internal resistance, and the reduction of the ability to store electrical energy to 63.2%, which is called the end of life.

Voltage: Supercapacitors have a recommended voltage and a working voltage. If the voltage used is higher than the recommended voltage, the life of the capacitor will be shortened, but the capacitor can continuously work under high voltage for a long time, and the activated carbon inside the capacitor will decompose to form gas, which is beneficial to store electrical energy. , but not more than 1.3 times the recommended voltage, otherwise the supercapacitor will be damaged due to excessive voltage.

Temperature: The normal operating temperature of supercapacitors is -40~70℃. Temperature and voltage are important factors that affect the life of supercapacitors. For every 5°C increase in temperature, the life of the capacitor will decrease by 10%. At low temperature, if the working voltage of the capacitor is increased, the internal resistance of the capacitor will not rise, which can improve the use efficiency of the capacitor.

Discharge: In the pulse charging technology, the internal resistance of the capacitor is an important factor; in the small current discharge, the capacity is an important factor.

Charging: There are many ways to charge capacitors, such as constant current charging , constant voltage charging , pulse charging , etc. During the charging process, connecting a resistor in series with the capacitor circuit will reduce the charging current and improve the service life of the battery.

Advantages of supercapacitor batteries

     The supercapacitor battery is a new type of high-power power battery that combines supercapacitors and lithium-ion batteries. One of its electrodes is the activated carbon electrode of the supercapacitor, and one electrode is the electrode of the lithium-ion battery


Product performance table:

series

model

LIC

 0813

LIC

 0802

LIC 

1313

LIC 

1020

LIC 

1320

LIC
1620

LIC
1640

LIC 1840

4.1

Operating temperature

-40℃-85℃

4.2

Operating Voltage

2.5V-3.8V

4.3

mixed voltage

2.5V

4.4

Standard capacitance (@25±2℃)

20F

40F

70F

80F

120F

250F

500F

750F

tolerance

-20%~+80%

4.5

Resistive AC (1KHz, 3.8V)

≤ 500mΩ

≤ 200mΩ

≤ 175mΩ

≤ 150mΩ

≤ 100mΩ

≤ 50mΩ

≤ 25mΩ

≤ 25mΩ

4.6

Discharge current

continuous

100MA

200MA

200MA

250MA

500MA

750MA

3.0A

3.0A

Pulse (1 second)

0.5A

1.0A

3.0A

5.0A

5.0A

10.0A

30.0A

30.0A

4.7

Charging voltage/current

4.2V 200mA

4.2V 300mA

4.2V 500mA

4.2V 500mA

4.2V 1A

4.2V 2A

4.2V 3A

4.2V 3A

4.8

Mass (G)

≤1.5

≤2.0

≤3.5

≤3.0

≤5.0

≤8.0

≤20.0

≤20.0

4.9

Storage conditions

+10℃-50℃60%RH

Product Size:

series

φD(mm)

Length(mm)

φD(mm)

P (mm)

Weight (G)

BTLIC0813RS3R8020

08±1.5

13±1.5

φ0.6±0.1

3.5±0.5

≤1.5

BTLIC0820RS3R8040

08±1.5

20±1.5

φ0.6±0.1

3.5±0.5

≤2.0

BTLIC1313RS3R8070

13±1.5

13±1.5

φ0.6±0.1

5.5±0.5

≤3.50

BTLIC1020RS3R8080

10±1.5

20±1.5

φ0.6±0.1

5.5±1.5

≤3.0

BTLIC1320RS3R8120

13±1.5

20±1.5

φ0.6±0.1

5.5±0.5

≤5.0

BTLIC1620RS3R8250

16±1.5

20±1.5

φ0.8±0.1

7.5±0.5

≤8.0

BTLIC1640RS3R8500

16±1.5

40±1.5

φ0.8±0.1

7.5±0.5

≤20.0

BTLIC1840RS3R8750

18±1.5

40±1.5

φ0.8±0.1

7.5±0.5

≤20.0

Internal resistance, capacity, self-discharge :

Lithium-ion hybrid capacitor monomerLithium-ion hybrid capacitor monomerLithium-ion hybrid capacitor monomer

Packaging Specifications:

Lithium-ion hybrid capacitor monomer

Precautions:

1. Use

1. The operating temperature of lithium-ion capacitors should not exceed the upper or lower limit of the rated temperature (-20 degrees to +55 degrees)

2. Lithium-ion capacitors should be used at nominal voltage. At the same time, in order to prolong the service life of the product, it is recommended that the monomer be used within the range of " rated voltage " (2.5v-3.8v).

3. Please confirm the polarity of lithium-ion capacitors before use, and avoid reverse connection.

4. The external ambient temperature has a heavy impact on the life of lithium-ion capacitors, please keep away from heat sources.

5. Do not directly touch water, oil, acid or alkali for lithium ion capacitors.

6. Do not knead, nail, or disassemble Li-ion capacitors.

7. Do not discard lithium-ion capacitors at will. When discarding, please dispose of them in accordance with national environmental protection standards.

2. Storage

1. During the transportation of lithium-ion capacitors, avoid violent vibration, kneading, rain and chemical corrosion, and handle with care.

2. Lithium-ion capacitors should not be placed in places with a relative humidity of more than 85% or containing toxic gases. In such an environment, the leads and casings are susceptible to moisture and corrosion, resulting in circuit breakers for ultra-fast rechargeable batteries.

3. If the lithium-ion capacitor needs to be stored for a long time, please store it in a place with a temperature of -40~35 degrees, a relative humidity below 50%, and good ventilation.

testing method:


capacity

1 Constant current discharge method

(1) Measurement circuit

image.png

                     Figure 1 - Constant Current Discharge Method Circuit

2 Measurement method

◎ The DC voltage of the constant current/constant voltage source is set to the rated voltage (UR ) .

◎ Set the constant current value of the constant current charging and discharging device specified in Table 1.

◎ Switch the switch S to the DC power supply, and charge it with constant voltage for 30 minutes after the constant current/constant voltage source reaches the rated voltage.

◎ After charging, switch the switch S to a constant current discharge device to discharge with a constant current.

◎ Measure the time t1 and t2 of the voltage across the capacitor from U1 to U2, as shown in Figure 2, and calculate the capacitance value according to the following equation :

image.png

Figure 2 Terminal voltage characteristics of capacitors

image.png

in

C capacity (F);

I discharge current (A);

U1  measures the initial voltage (V) ;

U 2  measures the termination voltage (V);

t 1  Time (s) for the discharge voltage to reach U1;

t 2   Time (s) for the discharge voltage to reach U2.

See Table 1 for the discharge current I and the voltages U1 and U2 at which the discharge voltage drops .

                           

3 Equipment: A, ARBIN supercapacitor test system B, linear DC stabilized power supply C, constant current discharge device D, voltage recorder

Internal resistance

Test method: AC impedance method

Measurement circuit

The measurement circuit shown is tested.

image.png

           Figure 3 - AC Impedance Method Circuit

Measurement methods

The internal resistance Ra of the capacitor should be calculated by the following formula:

image.png

in

Ra AC internal resistance (Ω);

U RMS value of AC voltage (V rms);

I AC current rms value (V rms).

The frequency at which the voltage is measured, should be 1kHz.

The AC current should be 1mA to 10mA.


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