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Keywords:

  • Li-redox flow batteries;
  • hybrid electrolytes;
  • redox flow batteries;
  • lithium-ion batteries

Abstract

By moving beyond the classical intercalation chemistry and the conventional redox flow batteries, a variety of new approaches toward high energy density storage are under intensive development. Among them, Li-redox flow batteries stand out as one that combines the existing knowledge of Li-ion batteries with the advantage of redox flow systems, and steps further toward functioning as fuel cells by fueling the cell with an external chemical agent. Following a brief recount of the features of Li-ion and redox flow battery systems, the concept of a Li-redox flow battery, which emerged from a synergy of the two battery systems, is presented.