Anionic Redox Chemistry as a Clue for Understanding the Structural Behavior in Layered Cathode Materials.,Small

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Anionic Redox Chemistry as a Clue for Understanding the Structural Behavior in Layered Cathode Materials.
Small ( IF 13.0 ) Pub Date : 2020-01-14 , DOI: 10.1002/smll.201905875
Wontae Lee ₁ , Soyeong Yun ₁ , Hao Li ₂ , Jaeyoung Kim ₁ , Hayeon Lee ₁ , Kyeongkeun Kwon ₁ , Jin Yong Lee ₂ , Young-Min Choi ₃ , Won-Sub Yoon ₁

Affiliation

The anionic redox chemistries of layered cathode materials have been in focus recently due to an intriguing phenomenon that cannot be described by the number of electrons of transition metal ions. However, even though several studies have investigated the anionic redox chemistry of layered materials in terms of the charge compensation, the relationship between the origin of the structural behavior and anionic redox chemistry in layered materials remains poorly understood. In addition, a simultaneous redox process of transition metal ions could occur through the d bands interaction. Here, it is demonstrated that the anionic redox chemistry is associated with the anisotropic structural behavior of the layered cathode materials albeit without providing additional capacities exceeding the theoretical values. These findings will provide a foundation of a new chapter in the understanding of the properties of materials.

中文翻译：

阴离子氧化还原化学作为了解层状阴极材料中结构行为的线索。

由于不能用过渡金属离子的电子数来描述的一种引人入胜的现象，层状阴极材料的阴离子氧化还原化学最近已成为人们关注的焦点。但是，尽管有几项研究从电荷补偿的角度研究了层状材料的阴离子氧化还原化学，但对层状材料的结构行为的起源与阴离子氧化还原化学之间的关系仍然知之甚少。另外，过渡金属离子的同时氧化还原过程可能通过d波段相互作用而发生。在此证明，尽管没有提供超过理论值的附加容量，但阴离子氧化还原化学与层状阴极材料的各向异性结构行为有关。

更新日期：2020-02-07

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