Scientists develop a lithium-ion battery that won’t catch fire

Phys.org  October 18, 2019
Current Li-ion batteries are susceptible to catastrophic fire and explosion incidents because they are built with flammable and combustible materials. Researchers at Johns Hopkins University have built a new class of “water-in-salt” and “water-in-bisalt” electrolytes—referred to as WiS and WiBS, respectively—that, when incorporated in a polymer matrix, reduces water activity and elevates the battery’s energy capabilities and life cycle while ridding it of the flammable, toxic, and highly reactive solvents present in current Li-ion batteries. It expands the electrochemical stability window to 4.1 V, dramatically improves cycle life in full cells with lithium titanate anodes compared to liquid water-based electrolytes and it can be built and operated in open air…read more. Video  TECHNICAL ARTICLE 

Chemical Communications 2019