5.5V 0.68F super capacitor
Working temperature range
Rated discharge capacitance
High temperature load
High temperature storage
1) The lifetime is 200000cycles.
2) Warranty time is with 8 years comprehensive warranty.
3) The delivery time is 7 business days.
What is the relationship and difference between supercapacitors and batteries?
The supercapacitor is a carbon material-based active material plus conductive carbon black mixed with a binder as a pole piece material, and the polarized electrolyte is used to adsorb positive and negative ions in the electrolyte to form an electric double layer structure for energy storage, and the energy storage process does not substantially occur. Chemical reaction, so the cycle life is very long.
For the battery, a lead-acid battery is taken as an example. A lead-acid battery is made of a lead plate filled with sponge lead as a negative electrode, a lead plate filled with lead dioxide is used as a positive electrode, and 1.28% of dilute sulfuric acid is used as an electrolyte. When charging, electrical energy is converted into chemical energy, which is converted into electrical energy when discharged. When the battery is discharged, the metal lead is a negative electrode, which undergoes an oxidation reaction and is oxidized to lead sulfate; the lead dioxide is a positive electrode, and a reduction reaction occurs, and is reduced to lead sulfate. When the battery is charged by direct current, the two poles respectively produce lead and lead dioxide. After removing the power supply, it returns to the state before discharge to form a chemical battery. A lead storage battery is a battery that can be repeatedly charged and discharged, and is called a secondary battery.
The use of the two is also different. The supercapacitor has low energy density, but its excellent cycle performance, environmental protection and high power make it widely used in backup power supply, high frequency charge and discharge, high power output, etc., while the battery energy density is high, but Its own principle limits its life, and overcharge and overdischarge will cause irreversible trauma, and it is not environmentally friendly. However, in the absence of finding an energy storage component that can replace such a high energy density, the future is very long. Time is still the world of batteries (lithium-ion batteries), and even replace fuels such as gasoline to become the mainstream of automotive kinetic energy.
The relationship between the two is that the advantages of the high power output of the supercapacitor and the ability to accept large current charge and discharge and the high energy density of the battery can be used as an improvement in battery life and energy saving of the electric vehicle.