This article over at IEEE.Org is a good read on some of the science behind zinc-based batteries, but what is even more amazing is that they predict to be able to scale up this technology and have it ready to come to market by the end of 2019. Not only could rechargeable zinc-based batteries possibly store as much energy as lithium-ion batteries, they could also be safer, cheaper, smaller and lighter, new research finds. The results suggest zinc batteries could find use in mild hybrids (microhybrids), electric vehicles, electric bicycles, and eventually, perhaps smartphones and power grid storage.