Toyota has unveiled a revolutionary electric car battery, able to travel 1,200 kilometres in one go and can be charged in just ten minutes. Toyota’s CEO Koji Sato said that “commercialisation of solid state batteries is a thing of the future... now within reach, changing the future of cars". The company also claims to be on the brink of being able to manufacture them. So is this, as some are claiming, a ‘watershed moment’ in car making? Can these new batteries now be produced at scale? What impact will this have on the popularity of electric cars and their uptake? Has Toyota solved the electric car battery problem? Contributors: Paul Shearing, chair in sustainable energy engineering and director of the Zero Institute at the University of Oxford. Shirley Meng, Professor of Molecular Engineering at the University of Chicago. Jeff Liker, Professor of Industrial Engineering at the University of Michigan for 35 years. Dr Evi Petavratzi, a mineral commodity specialist from the British Geological Survey. Presenter: Tanya Beckett Producer: Bob Howard Editor: Tara McDermott Sound Designer: Gareth Jones Production Coordinator: Jordan King Image: Olga Rolenko via Getty Images - 1403000871