What is the difference between Supercapacitor and Capacitor

 

What is Supercapacitor or capacitor?

 

Capacitors and supercapacitors are both devices used to store electrical energy, but they differ significantly in their construction, energy storage mechanisms, and applications.

 

Core differences between capacitors and supercapacitors

 

Energy Storage Mechanism

Energy Storage Mechanism is one of the major differences between supercapacitors and capacitors. Capacitors Store energy by accumulating electric charge between two conductive plates (typically made of metal) separated by an insulating material (dielectric). They store energy electrostatically, with the amount of stored energy proportional to the square of the voltage applied and the capacitance (C) of the capacitor (E = 0.5 * C * V^2).

Supercapacitors (Electric Double-Layer Capacitors, EDLCs): Store energy electrochemically at the interface between an electrode and an electrolyte. They rely on the formation of an electric double layer (EDL) at the electrode-electrolyte interface to store charge, which enables them to achieve much higher capacitance compared to traditional capacitors.

 

Capacitance

Capacitance is another difference between supercapacitors and capacitors.

Capacitors typically have capacitance values ranging from picofarads (pF) to millifarads (mF). They are used for short-term energy storage, filtering, and power conditioning in electronic circuits.

Supercapacitors have much higher capacitance values, typically ranging from tens of farads (F) to several thousand farads. This high capacitance allows them to store much larger amounts of electrical energy compared to capacitors, albeit at lower voltage ratings.

 

Energy Density:

Capacitors have relatively low energy density (energy stored per unit volume or mass), which limits their use for high-energy applications. While supercapacitors have higher energy density compared to traditional capacitors but lower compared to batteries. They bridge the gap between conventional capacitors and batteries in terms of energy storage capacity.

 

Charge and Discharge Characteristics

Capacitors can charge and discharge quickly, making them suitable for applications requiring rapid energy transfer, such as in electronics for smoothing power supply voltages.

Supercapacitors can also charge and discharge rapidly, but their energy density allows them to store more energy per unit volume or mass compared to capacitors, making them suitable for applications requiring higher energy storage.

 

Applications

Commonly capacitors are used in electronic circuits for energy storage, coupling, decoupling, filtering, and timing applications. But supercapacitors find applications in energy harvesting, regenerative braking systems, power backup systems, and other applications requiring rapid energy storage and release, where batteries may be too slow or capacitors too low in capacity.

 

 

Supercapacitor Manufacturer

 

Now in the market, there are some famous brands produce supercapacitors, such as Vishay, Kemet,  Eaton, Panasonic etc. 

 

Super capacitor
Photo	Description	UF Capacitors Series Code	Vishay	Eaton	ELNA	Panasonic	Cornell Dubilier
	Coin Type Super Capacitors TSE series	TSE series	196 DLC  series	KR series	DSK series DBN series DX series	SG Series EEC Series	EDC Series EDS Series

 

We UF Capacitors also focus on providing high quality supercapacitors. You can find popular 1.5F 3.6V supercapacitors, 1.5F 5.5V supercapacitors at UF Capacitors. Below are our supercapacitor cross reference.

 

 

 

UF Capacitors Supercapacitor Top 10 Best Selling    

About US

 

UF Capacitors is an ISO9001-certified manufacturer in China, founded in 1995. We hold military qualifications for tantalum capacitors, MLCC, and other products. Additionally, we have a UL-recognized test laboratory located at our factory site.

 

Our marketing position is to provide a superior alternative to first-tier brands such as TDK, Murata, AVX, EPCOS, Vishay, and Panasonic. We offer similar quality but at better prices, with faster lead times and excellent service. With extensive experience working with renowned international companies like GE, Philips, Jabil, and Flex, we have built a strong reputation.

 

UF Capacitors serves the consumer electronics, computing, communications, and industrial markets. As a professional Chinese electronic components manufacturer, we are dedicated to delivering high-quality electronic components, exceptional management, strict quality control systems, and excellent sales service. We strive to foster mutually beneficial partnerships and drive business growth.

 

Welcome visit our website: www.ufcapacitors.com

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