Highly stable Mn-Sn flow batteries towards low-temperature energy storage
Key Points
This research aims to explore the performance of Mn-Sn flow batteries at low temperatures.
Utilized aqueous redox flow battery technology.
Assessed performance below −20°C under controlled conditions.
Analyzed ionic conductivity and freezing point of various electrolytes.
Achieved stable operation of Mn-Sn flow batteries at temperatures previously deemed impractical.
Observed significant improvements in ionic conductivity at low temperatures.
Identified optimal electrolyte compositions for low-temperature performance.
Abstract
The operating temperature of the reported aqueous redox flow batteries (ARFB) is typically above −20°C, which can be ascribed to the high freezing point of electrolytes, low ionic conductivity, and...