Super lithium capacitor

Product introduction:

        The utility model relates to an electric power-assisted bicycle with super lithium capacitor, which comprises an electric bicycle body and an energy-storage lithium capacitor module. The energy-storage lithium capacitor module is located on the electric bicycle body. The energy-storage lithium capacitor module includes a shell and a handle. The shell is equipped with a super lithium capacitor battery module and a control chip. The super lithium capacitor battery module is connected with the control chip. The lower part of the shell is equipped with a battery positive output socket and a battery negative output socket, The shell is connected with a handle, and there is a fixed chute between the shell and the handle. Using the above technical scheme, a super lithium capacitor electric power-assisted bicycle is made, which has small size, high energy density, and the battery is easy to place in any suitable position. Especially in the folding electric bicycle, it has a good application prospect.

Product performance table:

Product Size:

Product display:

Product Description：

We are lithium-ion capacitor battery, NOT the ordinary lithium-ion battery!

YKY lithium-ion capacitor battery is a new type of high-power battery made by mixing super capacitor and lithium ion battery; one of its electrodes is activated carbon electrode of super capacitor, and the other is lithium ion battery electrode! Therefore, it enjoys the advantages of both of the lithium-ion battery and super capacitor! 

1.Ultra-large Capacitance, much larger than ordinary capacitor.

2. High Power Density. The power that can be released instantly is nearly ten times higher than that of ordinary batteries without damaging the batteries. 

3. Long Cycle Life. The charge and discharge cycle life is more than 30000-100,000 times, which is one of the biggest advantages. Traditional batteries can only be charged and discharged hundreds of times.

4. Excellent Low Temperature Charge and Discharge Performance. Compared with traditional lithium-ion batteries which will be significantly reduced at low temperatures, YKY lithium-ion capacitor battery can be used normally in an ambient temperature of 40 to 60 degrees. 

5. Small Leakage. With super charge retention ability, the leakage is very small, while the traditional battery needs to be charged frequently to maintain the state.

6. Ultra-fast Charging. The charging speed is dozens of times faster than ordinary batteries, and it can fully charge the power required by a car in a few minutes. 

7. Environment Friendly & Maintenance-free. It will not cause pollution to the environment itself, and it is truly maintenance-free, while traditional batteries are still pollute the world we live.

Internal resistance, capacity, self-discharge :

Packaging Specifications:

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

                     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 :

Figure 2 Terminal voltage characteristics of capacitors

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.

           Figure 3 - AC Impedance Method Circuit

Measurement methods

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

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.