In Situ TEM Studies on Electrochemical Mechanisms of Rechargeable Ion Battery Cathodes,Small Structures

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In Situ TEM Studies on Electrochemical Mechanisms of Rechargeable Ion Battery Cathodes
Small Structures ( IF 13.9 ) Pub Date : 2023-03-14 , DOI: 10.1002/sstr.202300001
Yanshuai Li ₁ , Tianpin Wu ₂ , Yifei Yuan ₁ , Jun Lu ₂

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Due to recent developments in secondary ion batteries for high-energy-density applications, a thorough understanding of the underlying mechanism of advanced cathode materials is of vital importance. In situ transmission electron microscopy (TEM) techniques capable of high spatial and temporal resolution in operando analysis of dynamic battery systems have attracted significant interest. However, the complex electrochemical reaction mechanisms of cathode materials have not been extensively investigated using in situ TEM due to technical difficulties in implementation. This perspective provides an overview on the recent development of in situ TEM for studying representative layered and olivine-type cathode materials in secondary ion batteries; it further discusses the critical challenges and possible breakthroughs of this technique in deepening fundamental understandings in the near future.

中文翻译：

可充电离子电池正极电化学机理的原位TEM研究

由于高能量密度应用二次离子电池的最新发展，彻底了解先进正极材料的基本机制至关重要。原位透射电子显微镜（TEM）技术在动态电池系统的操作分析中具有高空间和时间分辨率，引起了人们的极大兴趣。然而，由于实施中的技术困难，正极材料的复杂电化学反应机制尚未使用原位 TEM 进行广泛研究。该视角概述了原位 TEM 用于研究二次离子电池中代表性层状和橄榄石型正极材料的最新发展；它进一步讨论了该技术在不久的将来在加深基本理解方面所面临的关键挑战和可能的突破。

更新日期：2023-03-14

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