TaiSan – a London company whose technology could unlock the use of sodium-ion batteries for mass market applications such as electric bikes, scooters, vehicles and power tools – has raised £4.65 million.

The round was co-led by Eos Advisory, and the Midlands Engine Investment Fund II through fund manager Mercia Ventures, with participation from AFI Ventures, EverQuest Capital Partners, Adeline Arts & Science, Techmind, angel François Badelon, and existing investors InnoEnergy, TSP Ventures, Exergon, and Heartfelt. 

Of the total raised, £700,000 came from Innovate UK, which provided grant funding through its Investor Partnerships Programme to match fund part of the private investment.