Structural Evolution in P2-type Layered Oxide Cathode Materials for Sodium-Ion Batteries,ChemNanoMat

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Structural Evolution in P2-type Layered Oxide Cathode Materials for Sodium-Ion Batteries
ChemNanoMat ( IF 2.6 ) Pub Date : 2021-12-13 , DOI: 10.1002/cnma.202100385
Zhengbo Liu ₁ , Jun Liu ₂

Affiliation

During the process of charge/discharge, with the de-/intercalation of Na ions, there will be structural changes in the P2-type layered oxide cathodes (phase transition from P2 to O2/Z phase or from P2 to P′2 phase). Due to the large volume change and Jahn-Teller effect, such phase transition could cause structural damage, thus it is a vital issue to keep the structural stability of P2-type layered oxide cathodes during cycling.

中文翻译：

钠离子电池 P2 型层状氧化物正极材料的结构演变

在充放电过程中，随着Na离子的脱出/嵌入，P2型层状氧化物正极会发生结构变化（从P2到O2/Z相或从P2到P′2相的相变） . 由于较大的体积变化和 Jahn-Teller 效应，这种相变会导致结构损坏，因此在循环过程中保持 P2 型层状氧化物正极的结构稳定性是一个至关重要的问题。

更新日期：2022-02-10

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