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Recent Progress in Polysulfide Redox‐Flow Batteries
Author(s) -
Zhang Sanpei,
Guo Wenjuan,
Yang Fengchang,
Zheng Panni,
Qiao Rui,
Li Zheng
Publication year - 2019
Publication title -
batteries and supercaps
Language(s) - English
Resource type - Journals
ISSN - 2566-6223
DOI - 10.1002/batt.201900056
Subject(s) - polysulfide , flow battery , redox , energy storage , battery (electricity) , renewable energy , flexibility (engineering) , nanotechnology , organic radical battery , materials science , scalability , biochemical engineering , computer science , process engineering , chemistry , engineering , electrical engineering , electrode , power (physics) , thermodynamics , physics , statistics , mathematics , metallurgy , electrolyte , database
Harvesting energy from intermittent and unstable renewable sources yet producing massive and stable output require large‐scale energy storage systems. Redox‐flow batteries have attracted extensive attention because of their flexibility and scalability and are promising large‐scale energy storage systems for electrical grids. As an emerging member of the redox‐flow battery family, polysulfide flow batteries exhibit a relatively high energy density with ultralow chemical cost of the redox active materials. The special solution chemistry and complex conversions between sulfur and polysulfides with long and short chains lead to various system design schemes and complicated reaction mechanisms. Here, we present a review of various polysulfide flow battery systems developed to date and their underlying reaction mechanism and offer our perspective for their future development.