About Calcium Batteries? With a little work, the abundant metal could replace lithium in modern batteries. Batteries of an e-car are shown to the customers on the ExpoZHANG PENGGETTY IMAGES Lithium ion batteries are common today, but for a number of environmental and economic reasons, scientists are looking for the next big battery. Calcium has potential in a number of areas, but struggles in finding a way to move electricity through an electrolyte. It's not perfect yet, but scientists have created the best electrolyte to date. A recently synthesized chemical offers the promise of an entirely new type of battery: calcium-based, as opposed to the modern batteries that rely on lithium. Across the globe, scientists are interested in what's coming after lithium batteries. The rechargeable batteries have become the dominant power source in any number of consumer electronics, from phones to cars. Research predicts that the global lithium ion battery market will be w...