A Newly Designed Modular ZnBr2 Single Cell Structure

Abstract

We describe a ZnBr2 single cell which has a highly modular symmetrical structure. With designed polyethylene shell frames, membrane frame and composite titanium-carbon felt electrodes, it has a higher energy density and is more flexible compared with traditional flow batteries. We repeatedly tested its performance, which showed good tightness, high reliability and a high energy efficiency of 75%. Due to the special symmetrical structure and modular design, it is easy to assemble and disassemble, which makes it suitable as a test platform for electrodes, membranes and electrolyte performance testing. The designed modular flow cell has low cost and high energy density, and can provide good guidance for flow battery research.

Sizing and Lifecycle Assessment of Electrochemical Batteries for Electric Vehicles and Renewable Energy Storage Systems

“…This battery system requires an obligatory temperature (below 50°C) and oxidation control system for safety, which makes it expensive [112]. The energy density (75-85 Wh/kg), efficiency (65-75%), and cycle life (>2000 cycles) of this battery vary within a moderate range [113]. Some significant advantages of these batteries are their flexibility in ambienttemperature operation, compatible power density in RES and EV applications, fast charging capability, and 100% DOD without any damage to the battery system [11,89].…”