In a laboratory on an industrial park an hour’s drive outside Boston, Tufts professor Michael Zimmerman is hoping a material he invented in his basement can help solve a crisis facing the electric car industry — which has inadvertently tied its fortunes to one of the poorest and least stable countries in the world.

In between his teaching, Mr Zimmerman runs start-up Ionic Materials, whose battery material could mark the future for the car industry as it races to go electric after a century of producing petrol cars. His hope is that his homegrown prototype could pave the way for a new generation of batteries that does not use cobalt, a silver-grey metal, more than 60 per cent of which is mined in the Democratic Republic of Congo.

Backed by highly respected computer scientist and investor Bill Joy, who spent years searching for the perfect battery, Ionic counts the Renault Nissan Mitsubishi carmaker alliance, Hyundai and French oil company Total among its shareholders.