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Progress and Prospects of Emerging Potassium–Sulfur Batteries
Author(s) -
Lei YaoJie,
Yang HuiLing,
Liang Yaru,
Liu HanWen,
Zhang Binwei,
Wang Liang,
Lai WeiHong,
Wang YunXiao,
Liu HuaKun,
Dou ShiXue
Publication year - 2022
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.202202523
Subject(s) - anode , separator (oil production) , cathode , battery (electricity) , materials science , sulfur , energy storage , electrolyte , potassium ion battery , redox , energy density , organic radical battery , nanotechnology , engineering physics , electrical engineering , electrode , metallurgy , chemistry , engineering , lithium vanadium phosphate battery , physics , power (physics) , quantum mechanics , thermodynamics
Abstract The potassium–sulfur battery (K–S battery) as an innovative battery technology is a promising candidate for large‐scale applications, due to its high energy density and the low cost of both K and S. The development of the K–S technology is, however, inhibited by its low reversible capacity and the safety issues related to the K metal anode. Here, the review starts by discussing the mechanism of the redox reactions for the K–S batteries and emphasizes the challenges for this battery system based on its current research status. Furthermore, the current improvement strategies for the K–S system in terms of the sulfur cathode, electrolyte, separator, and K metal anode are summarized. Finally, future perspectives on the development of the K–S system are proposed.