With the long-lagging lithium ion battery still dominating our devices. the battery market is working tirelessly to create a faster, safer, cheaper and more powerful future. While batteries have always taken a backseat to more prominent technology, the slimmest of devices still depend on them. And they might be the most outdated component within these groundbreaking innovations. While rechargeable lithium ion is the lightest of the metal elements, most modern devices (and their users) have much to gain from a transformation in the battery market. For starters, their flammability and safety concerns have ruined product launches and tainted the reputations of their brands (hello Samsung and Galaxy Note 7).