Every few years, one or two research companies claim to have a breakthrough battery technology that will put large products like electric cars fully into the mainstream. In the last decade, several have come forward with either new materials or new techniques that will make batteries lighter, stronger and longer lived.
Battery buyers around the world have concerns about the current standard component: lithium. Lithium-based (Li-ion) batteries in all sizes power everything from cars to cell phones. Lithium is expensive to extract and fragile when worked. The element is abundant but never found as a solitary ore; its reactivity with air and water means it is always embedded in other
materials that keep it from deteriorating.
Full report can be read: NewBatteriesEVs.PDF