The Renaissance of the Zn-Ce Flow Battery: Dual-Membrane
While the zinc–cerium flow battery has the merits of low cost, fast reaction kinetics, and high cell voltage, its potential has been restricted due to unacceptable charge loss and
During charge/discharge cycles at 50 mA cm −2, the coulombic and voltage efficiencies of the zinc–cerium redox flow battery are reported to be 92 and 68%, respectively .
While the zinc–cerium flow battery has the merits of low cost, fast reaction kinetics, and high cell voltage, its potential has been restricted due to unacceptable charge loss and unstable cycling performance, which stem from the incompatibility of the Ce and Zn electrolytes.
Zinc–cerium redox flow batteries (ZCBs) are emerging as a very promising new technology with the potential to store a large amount of energy economically and efficiently, thanking to its highest thermodynamic open-circuit cell voltage among all the currently studied aqueous redox flow batteries.
Zinc–cerium batteries are a type of redox flow battery first developed by Plurion Inc. (UK) during the 2000s. In this rechargeable battery, both negative zinc and positive cerium electrolytes are circulated though an electrochemical flow reactor during the operation and stored in two separated reservoirs.
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