The battle for the battery of the future has a new contender. Chinese manufacturer Sunwoda just announced its “Xin·Bixiao” battery, a polymer all-solid-state cell. This new battery steps into the ring with a key specification that makes the electric car industry sit up and take notice: an energy density of 400 Wh/kg. The headline-grabbing 400 Wh/kg is a measure of… Read more…