关键词: Energy storage, Flow battery, Vanadium fow battery, Zinc-based fow battery, Novel fow battery system

Abstract:

Flow batteries have received increasing attention because of their ability to accelerate the utilization of renewable energy by resolving issues of discontinuity, instability and uncontrollability. Currently, widely studied fow batteries include traditional vanadium and zinc-based fow batteries as well as novel fow battery systems. And although vanadium and zinc-based fow batteries are close to commercialization, relatively low power and energy densities restrict the further commercial and industrial application. To improve power and energy densities, researchers have started to investigate novel fow battery systems, including aqueous and non-aqueous systems. Here, novel non-aqueous fow batteries possess low conductivity and low safety, limiting further application. Therefore, the most promising systems remain vanadium and zinc-based fow batteries as well as novel aqueous fow batteries. Overall, the research of fow batteries should focus on improvements in power and energy density along with cost reductions. In addition, because the design and development of fow battery stacks are vital for industrialization, the structural design and optimization of key materials and stacks of fow batteries are also important. Based on all of this, this review will present in detail the current progress and developmental perspectives of fow batteries with a focus on vanadium fow batteries, zinc-based fow batteries and novel fow battery systems to provide an efective and extensive understanding of the current research and future development of fow batteries.

Full-text：https://link.springer.com/article/10.1007/s41918-019-00047-1/fulltext.html

Key words: Energy storage, Flow battery, Vanadium fow battery, Zinc-based fow battery, Novel fow battery system