Affiliation:
1. School of Physics & Wuhan National Laboratory for Optoelectronics (WNLO) Huazhong University of Science and Technology (HUST) Luoyu Road 1037 Wuhan 430074 P. R. China
Abstract
AbstractSodium‐ion batteries (SIBs) have attracted tremendous attentions in recent years due to the abundance and wide distribution of Na resource on the earth. However, SIBs still face the critical issues of low energy density and unsatisfactory cyclic stability at present. The enhancement of electrochemical performance of SIBs depends on comprehensive and precise understanding of the underlying sodium storage mechanism. Although extensive transmission electron microscopy (TEM) investigations have been performed to reveal the sodium storage property and mechanism of SIBs, a dedicated review on the in situ TEM investigations of SIBs has not been reported. In this review, recent progress in the in situ TEM investigations on the morphological, structural, and chemical evolutions of cathode materials, anode materials, and solid‐electrolyte interface during the sodium storage of SIBs is comprehensively summarized. The detailed relationship between structure/composition of electrode materials and electrochemical performance of SIBs has been clarified. This review aims to provide insights into the effective selection and rational design of advanced electrode materials for high‐performance SIBs.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Hubei Province
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Cited by
8 articles.
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