Miniaturization of Zn/Br redox flow battery cell

Abstract

Redox flow battery is one of secondary batteries, which is a kind of a fuel cell because it also utilizes active material supplied externally. It has been paid attention since it has been considered as a solution for large-scale energy storage. We miniaturized the cell of Zn/Br redox flow battery as an energy source for a sensor node of wireless sensor network systems. In this paper, we report the fabrication and the experimental results for performance characteristics of the miniaturized Zn/Br redox flow battery cell. Especially, we investigated the electrode material influence on its characteristics utilizing three kinds of carbon materials.