期刊
SMALL METHODS
卷 3, 期 4, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smtd.201800221
关键词
multielectron reactions; polyanions; sodium-ion batteries; structural evolution; transition metals
资金
- National Key Research and Development Program of China [2018YFB0905400, 2016YFB0901500]
- National Natural Science Foundation of China [21233004, 21428303, 21621091]
Realizing multielectron reactions in electrodes is crucial for improving the capacity and energy density of batteries. Polyanion-type compounds are suitable for exploring multielectron reactions due to their robust frameworks and structural diversity. This paper reviews the recent research progress on the study of multielectron reactions in Na-based polyanion compounds. The versatile polyanions are classified by transition metals (V, Mn, Fe, Ti, Cr, and Co). Both experimental efforts and theoretical calculations are analyzed and summarized, with a special focus on the reversibility, stability, and corresponding structural evolutions during the multielectron reactions. The challenges and opportunities of exploring polyanions with reversible and stable multielectron reactions are also discussed.
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