Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 143, Issue 38, Pages 15475-15489Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.1c06923
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Funding
- National Key RAMP
- D Program of China [2018YFE0201701, 2018YFA0209401]
- National Natural Science Foundation of China [22088101, 21733003, 21975050]
- Fudan University [JIH2203010, IDH2203008/003]
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This article focuses on constructing a theory-to-application methodology for aqueous sulfur-based batteries. Research reveals the complexity in the electrochemistry of aqueous sulfur-based batteries, which poses challenges and potential for future development. Further exploration in both theory and practice is needed for the future development direction.
While research interest in aqueous batteries has surged due to their intrinsic low cost and high safety, the practical application is plagued by the restrictive capacity (less than 600 mAh g(-1)) of electrode materials. Sulfur-based aqueous batteries (SABs) feature high theoretical capacity (1672 mAh g(-1)), compatible potential, and affordable cost, arousing ever-increasing attention and intense efforts. Nonetheless, the underlying electrochemistry of SABs remains unclear, including complicated thermodynamic evolution and insufficient kinetics metrics. Consequently, multifarious irreversible reactions in various application systems imply the systematic complexity of SABs. Herein, rather than simply compiling recent progress, this Perspective aims to construct a theory-to-application methodology. Theoretically, attention has been paid to a critical appraisal of the aqueous-S-related electrochemistry, including fundamental properties evaluation, kinetics metrics with transient and steady-state analyses, and thermodynamic equilibrium and evolution. To put it into practice, current challenges and promising strategies are synergistically proposed. Practically, the above efforts are employed to evaluate and develop the device-scale applications, scilicet flow-SABs, oxide-SABs, and metal-SABs. Last, chemical and engineering insights are rendered collectively for the future development of high-energy SABs.
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