What is a supercapacitor? What are its advantages?

Blog post description.

8/6/20232 min read

Supercapacitor manufacturer
Supercapacitor manufacturer

Supercapacitor, also known as supercap, electrochemical capacitor, or electrochemical supercapacitor, is a type of capacitor that can store and release a large amount of charge. It utilizes electrochemical principles to store charge between electrodes and electrolytes, unlike traditional electrochemical batteries such as lithium-ion batteries, which store and release energy through chemical reactions.

The main advantages of supercapacitors are as follows:

High power density: Supercapacitors have a very high power density, allowing them to rapidly store and release a large amount of electrical energy. In contrast, traditional chemical batteries often struggle to meet high power demands.

Long cycle life: Supercapacitors typically have a very long cycle life, capable of undergoing hundreds of thousands of charge-discharge cycles. This makes them highly suitable for applications that require frequent charge-discharge cycles.

Wide temperature range: Supercapacitors can operate in extreme temperatures, with minimal performance variation. This allows them to work in both low and high-temperature environments, making them suitable for specialized applications.

High reliability: Due to the absence of chemical reactions in supercapacitors, they do not carry the risk of expansion, leakage, or explosion that is associated with electrochemical batteries such as lithium-ion batteries. Therefore, supercapacitors are considered to be highly safe and reliable.

Rechargeability: Unlike traditional electrolytic capacitors, supercapacitors can be repeatedly charged and discharged, possessing rechargeability. This enables them to substitute disposable batteries, reducing environmental impact.

The main drawback of supercapacitors is their relatively low energy density, i.e., the amount of electrical energy that can be stored per unit mass or volume is relatively low. This limits their ability to completely replace traditional chemical batteries in energy-intensive applications such as electric vehicles. Therefore, supercapacitors are often used in combination with other batteries (such as lithium-ion batteries) to fully leverage their advantages and compensate for each other’s limitations.

NEWILLING is a leading wholesale supplier of lithium battery cells in China, with a battery inventory warehouse worth 500 million RMB.

We offer a wide range of options, including LFP, NCM, and LTO cells in both cylindrical and prismatic shapes.

Our brand new grade A lithium cells have capacities ranging from 4000mAh to 340Ah and Charge-discharge rates from 0.2C to 6C. We also provide advanced specialty cells.

Please let us know your design requirements, and we will use our expertise to quickly find the most suitable cell solution and specification for your team.

Contact Now!!