Story highlights
- Chinese company CRRC Corp developing graphene supercapacitors
- Application is in electric buses
- The company has produced two types of capacitors
(2D Materials Magazine)- China’s largest rolling stock manufacturer CRRC Corp. has announced that it has developed graphene supercapacitors that can power electric buses with higher efficiency and for a longer period.
The company has developed two types of graphene supercapacitors:
- 2.8 Volt/30,000 F: can power trolley buses for up to 10 km after a one-minute charge, compared with 6 km in the previous generation
- 3 Volt/12,000 F.: can provide enough electricity to power a tram for 6 km with only 30 seconds of charging.
The company has estimated that China can save 584 GWh of electricity and cut 6.7 million tonnes of carbon dioxide emission a year if all the newly-added buses, around 60,000 a year, can be installed with the new capacitors.
