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As probably the most promising alternate for lithium-ion batteries (LIBs), sodium-ion batteries (SIBs) nonetheless face many points that hinder their large-scale commercialization. Layered transition steel oxide cathodes have attracted widespread consideration owing to their massive particular capability, excessive ionic conductivity, and possible preparation circumstances. Nevertheless, their electrochemical properties are normally restricted by the irreversible section transition and harsh storage circumstances brought on by the humidity sensitivity. Not too long ago, great efforts have been dedicated to fixing these points towards superior high-performance layered oxides cathodes. Herein, we summarize these remaining challenges of layered oxides cathodes and the corresponding modification methods, such because the variations in chemical compositions, the structure of (nano)micro-structures, floor engineering, and the regulation of section compositions. We hope that the understanding offered on this overview can present helpful steerage to creating high-performance layer-structured cathode supplies for superior SIBs.
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