A Stirred Self-Stratified Battery for Large-Scale Energy Storage

摘要: Summary Large-scale energy storage batteries are crucial in effectively utilizing intermittent renewable (such as wind and solar energy). To reduce battery fabrication costs, we propose a minimal-design stirred with gravity-driven self-stratified architecture that contains zinc anode at the bottom, an aqueous electrolyte middle, organic catholyte on top. Due to solubility difference, positive redox species strictly confined upper catholyte. Thus, self-discharge is eliminated, even when realize high-rate charge-discharge. Moreover, intrinsically avoids electrode deterioration failure related membrane crossover suffered by other types of cells. Therefore, it exhibits excellent cycling stability, which promising for long-term storage.