Supercapacitors: EDLC, Radial type most used in energy storage and energy control field

2025-01-25

Supercapacitors are emerging as a burgeoning force in the energy storage market. Unlike ordinary capacitors that struggle to significantly boost capacitance, supercapacitors are revolutionizing the field.

They are an electrochemical energy storage device bridging traditional capacitors and batteries. With activated carbon as the main electrode material, they offer high safety due to its high ignition point and sealed structure. Supercapacitors operate on two principles: electric double - layer capacitance, where ions form charge layers at the electrode - electrolyte interface for electrostatic charge storage, and pseudocapacitance, involving redox reactions in materials like metal oxides for enhanced charge storage.

The development of supercapacitors has a long - standing history.

From the Leyden jar in the 18th century to the commercialization of carbon - based electrochemical capacitors in 1969, and further advancements in recent years with new materials like graphene and carbon nanotubes. Their performance has been continuously enhanced, with prospects for higher energy density, lower cost, and longer lifespan.

In the energy storage market, supercapacitors are booming.

Driven by demands from new energy vehicles and smart grids, the global market size reached about $2.1 billion in 2023, with the Chinese market at around 3.05 billion yuan. They have vast potential. In electric vehicles, they can achieve rapid charging within 10 seconds to 10 minutes, a stark contrast to the slow - charging lithium - ion batteries. They also shine in scenarios with frequent charge - discharge cycles, such as energy recovery in electric vehicles and grid regulation.

supercapacitors have an extremely long cycle life

Moreover, supercapacitors have an extremely long cycle life of 500,000 - 1 million times and a service life of over 10 years, reducing maintenance costs for industrial equipment. Their large capacitance at the farad level, compared to the picofarad or microfarad of common capacitors, makes them suitable for solar and wind energy storage. And being free from heavy - metal pollution, they are in line with the concept of carbon neutrality.

Supercapacitors still face challenges

Their power density is lower than traditional batteries, limiting long - term, high - energy applications. The self - discharge problem reduces stored charge over time, and while surface treatments offer temporary fixes, a fundamental solution remains elusive. Existing electrode materials have drawbacks, and new materials like graphene face cost and consistency issues in large - scale production.

Nonetheless, like solid - state batteries, these problems are expected to be overcome with technological progress. Combining supercapacitors and solid - state batteries in hybrid energy storage systems holds great promise. In electric vehicles, supercapacitors can handle high - power operations during acceleration and braking, while solid - state batteries provide stable energy for normal driving. In renewable energy storage, they can respectively manage power fluctuations and long - term storage, maximizing the advantages of both.

In conclusion, supercapacitors, with their unique properties and wide - ranging applications, are set to play an increasingly important role in the energy storage field as technology advances.

Hongda Capacitors till now has 5 series supercapacitors line cards. Normally EDLC,and Radial type  are most used. Hongda Capacitors can offer cost efficient capacitors to meet your industry demand.

HCE Series Electric Double Layer Capacitors, Supercapacitors,

HDS Series Winding Radial ultra capacitor,

HHP Series Radial Lead Type Supercapacitors,

HHT Series Electric Double Layer Capacitors, Supercapacitors

HDZM Series electrolytic double layer capacitors

Welcome to share your RFQ or request to get your solution from Hongda Team: emily@hongdacap.com.hk.