S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Material Science and Engineering (재료공학부) Journal Papers (저널논문_재료공학부)
Conversion-based cathode materials for rechargeable sodium batteries
- Kim, Jongsoon; Kim, Hyungsub; Kang, Kisuk
- Issue Date
- Advanced Energy Materials, Vol.8 No.17, p. 1702646
- cathodes; conversion reactions; electrode materials; energy storage systems; rechargeable sodium batteries
- Conversion-based electrode materials for rechargeable sodium batteries (RSBs) have received considerable attention because of their potentially higher energy densities than those of conventional intercalation-based electrode materials. This would overcome generally lower energy densities of RSBs than those of lithium-ion batteries. However, they often suffer from large volume changes, sluggish Na-ion kinetics, and large overpotential in their reaction. Intensive research has thus focused on improving the electrochemical performance through a number of approaches, including analyses of the reaction mechanisms during charge/discharge, engineering the electrode materials in terms of their nanostructuring or compositing, and searching for new candidate materials. This review presents an overview of the approaches used to explore conversion electrode materials for RSBs, in particular focusing on those with relative high redox potential that could be possibly used as cathodes, followed by a discussion of the challenges and perspectives involving future research directions for these materials.
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