Shenzhen supercapacitor

Cname：Super capacitor
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Release date:2023-02-09 11:07:06

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Product introduction

The specific details of the structure of Shenzhen supercapacitors depend on the application and use of supercapacitors. These materials may be slightly different due to the manufacturer or specific application requirements. The common feature of all supercapacitors is that they contain a positive electrode, a negative electrode, and a diaphragm between the two electrodes. The electrolyte fills the two pores separated by the two electrodes and the diaphragm.

Series Specification Sheet:

Specification	characteristic
Rated voltage VR	3.0V
surge voltage	3.15V
Capacity range	1F-500F
Operating temperature range	-40℃~+65℃
Product life	Normal temperature cycle life: 500,000 cycles between VR and 1/2VR at 25 °C , capacity decay ≤30% times, internal resistance change ≤4 times
	High temperature endurance life: the temperature is maintained at VR for 1000 hours, the capacity decays by 30%, and the internal resistance changes ≤4 times

Product performance table:

model	Voltage V	Capacity F	AC internal resistance mΩ1KHz	24h leakage current uA	Product size mm
model	Voltage V	Capacity F	AC internal resistance mΩ1KHz	24h leakage current uA	Diameter D	length H	Pitch P
YKY-3R0-J105VYJ06	3.0	1	300	10	8	13	3.5
YKY--3R0-J205VYJ07	3.0	2	180	20	8	20	3.5
YKY--3R0-J335VYJ07	3.0	3.3	140	33	8	20	3.5
YKY--3R0-J405VYJ13	3.0	4	100	40	10	20	5
YKY--3R0-J475VYJ09	3.0	4.7	90	45	12.5	21	5
YKY--3R0-J505UYJ04	3.0	5	90	50	8	24	3.5
YKY--3R0-J705UYJ13	3.0	7	70	70	10	20	5
YKY--3R0-J805VYJ09	3.0	8	60	80	12.5	21	5
YKY--3R0-J106UYJ11	3.0	10	60	100	10	25	5
YKY--3R0-J156VYJ19	3.0	15	38	150	12.5	34	5
YKY--3R0-J256VYJ21	3.0	25	30	250	16	26	7.5
YKY--3R0-J306VYJ21	3.0	30	20	300	16	26	7.5
YKY--3R0-J406VYJ25	3.0	40	20	400	18	41	7.5
YKY--3R0-J506VYJ25	3.0	50	20	500	18	41	7.5
YKY--3R0-J606VYJ25	3.0	60	20	600	18	41	7.5
YKY--3R0-J107UYJ28	3.0	100	8	1000	22	46	10
YKY--3R0-J127UYJ28	3.0	120	15	1200	22	46	10
YKY--3R0-J367VYJ33	3.0	360	3.2	3500	35	61	10
YKY--3R0-J507VYJ44	3.0	500	3	500	35	80	22

Product size:

Shenzhen super capacitor

应用.jpg

Product application range:

RAM , detonators, car recorders, smart meters, vacuum switches, digital cameras, motor drives, smart three meters, UPS, security equipment, communication equipment, flashlights, water meters, gas meters, tail lights, small appliances

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.

C=It(U1-U2)

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:

W=PT

(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 to 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.