A Tubular Polymer Redox Flow Battery with a Ceramic Membrane

Abstract A tubular cell design for redox flow batteries is introduced utilizing chemically, mechanically, and thermally stable ceramic membranes. The basic viability of this new cell design is demonstrated via static and pumped charge and discharge experiments with a laboratory prototype. Electrochemical impedance spectroscopy measurements are presented for the investigation of the internal Ohmic resistance. The technological benefits of a tubular cell design as well as its limitations are discussed.