“Battery makers are concentrating on trying to solve some of the key limitations of lithium ion batteries. One of those is the scant supply of raw materials required to make them, a supply that is unlikely to meet future energy storage demands, according to Prof Thomas Maschmeyer, co-founder of the University of Sydney spin-off company Gelion. Gelion batteries use zinc and bromide, elements with more stable and abundant supplies than the lithium and cobalt of lithium ion batteries. Unlike lithium ion batteries, which will become more costly as demand for raw materials outstrips supply, the price of Gelion’s batteries will only decrease with increased production scales.”