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Body Integrated Supercapacitor for Next Generation of Electric Vehicles


Fast charge, space-saving and safe energy storage solution for automobiles, developed by researchers in Hong Kong.

The energy storage has long been the most critical challenge for electric vehicles or hybrid electric vehicles. There is a new trend of using supercapacitors to complement or even replace batteries as energy storage devices to improve the vehicles’ performance.

Copyright : HKPolyU

The Hong Kong Polytechnic University (HKPolyU)’s Body Integrated Supercapacitor enables manufacturers to make use of space in car body to maximize energy storage. Special ackaging and built-in power electronics technologies have been developed to produce supercapacitor modules with new structure.

As curved supercapacitor modules can be produced using the new technologies, supercapacitors can be integrated into car body panels, such as the roof, doors and the trunk lid.

In addition, new energy storage balancing technologies have been invented, which can reduce energy loss and the size of nergy balancing circuit in the systems of energy storage devices.

A series of related technologies were also developed, such as charging and discharging control, as well as connections with other energy storage system. Due to such developments, the Body Integrated Supercapacitor is compatible with and applicable in various electric vehicles.

Special Features and Advantages

• Supercapacitor in form of curved and flat modules can be developed to be integrated in different parts of the car body
• Energy storage components with high power density enable fast charging and discharging
• Energy storage system for electric vehicles using solely supercapacitors
• Hybrid energy storage system of electric vehicles using supercapacitors plus batteries (Li-ion batteries or fuel cells)
• The supercapacitor module is with rated capacitance 150F, rated voltage 50V, and can be in flat and curved surfaces with a physical surface area of 0.5 sqm and a thickness of 4 cm.


• Applicable to electric vehicles, and be integrated with various parts of the vehicular body
• Applicable to other cases where supercapacitor energy storage systems are required

Principal Investigator
Prof. Eric CHENG
Department of Electrical Engineering
The Hong Kong Polytechnic University

Contact Details
Institute for Entrepreneurship
Tel: (852) 3400 2929 Fax: (852) 2333 2410 Email:

Associated links
Original article from HKPolyU

The Hong Kong Polytechnic University | Research SEA
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