China EV battery race: Tesla’s rivals join NIO in efforts to achieve 1,000km driving range on single charge target

China’s electric car assemblers and battery producers are setting a new goalpost in their battle for supremacy in the world’s largest vehicle market: a driving range of up to 1,000 kilometres (621 miles) on a single charge. Their new weapon is the solid-state battery, deemed a better option because the electricity from solid electrodes and a solid electrolyte is safer, more reliable and more efficient than the liquid or polymer gel electrolytes found in existing lithium-ion or lithium polymer...