Tech start-up Petalite made headlines in 2015 after announcing it had developed a product which can re-charge smartphone devices in just 15 minutes.

The firm’s long-term goal is to bring fast charging technology to all portable batteries including vehicles and power supplies.

Since it was incorporated in 2014, Petalite has undergone three rounds of private investment and received three grants for its technology.

Check out our '101 Birmingham and Midlands’ list for more tech stars from the region.