EV Engineering News

Maxwell delivers ultracapacitor-based energy storage for Beijing subway system

Maxwell UCaps

Like cars, trains waste large amounts of energy during braking. Until now, however, there has been no practical way to recover this energy by using regenerative braking. Locomotives do not carry large batteries, and they are typically connected to an electrical grid that can’t handle quick bursts of energy.

Ultracapacitors, which offer extremely high charge/discharge rates and long cycle life, could provide a solution.

Ultracapacitor specialist Maxwell Technologies has announced that it is supplying its technology for a regenerative braking energy storage system used by the Beijing subway system.

The China Railway Rolling Stock Corporation will use Maxwell’s 48-volt modules in two sets of regenerative braking energy storage devices for the system’s No. 8 line, which runs through the heart of China’s capital.


Source: Maxwell via Green Car Congress

Create Account. Already Registered? Log In

Virtual Conference on EV Engineering: Free to Attend

The sessions from our Fall 2022 Virtual Conference are now available to view on-demand. Register for a session below to watch the recording and download the presentation.


EV Engineering Webinars & Whitepapers

EV Tech Explained