In‐Depth Mechanism Understanding for Potassium‐Ion Batteries by Electroanalytical Methods and Advanced In Situ Characterization Techniques. Issue 12 (27th October 2021)

• Record Type: Journal Article
• Authors: Liu, Xi; Tong, Yong; Wu, Yuanji; Zheng, Jiefeng; Sun, Yingjuan; Li, Hongyan
• Is Part Of: Small methods. Volume 5:Issue 12(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-10-27
• Subjects: electroanalytical methods -- energy storage mechanisms -- in situ electrochemical techniques -- potassium ion batteries; Nanotechnology -- Methodology -- Periodicals; Nanotechnology -- Periodicals; Periodicals; 620.5028
• DOI: 10.1002/smtd.202101130
• Languages: English
• ISSNs: 2366-9608

Abstract

Abstract: The advancement of potassium ion batteries (PIBs) stimulated by the dearth of lithium resources is accelerating. Major progresses on the electrochemical properties are based on the optimization of electrode materials, electrolytes, and other components. More significantly, the prerequisites for optimizing these key compositions are in‐depth and comprehensive exploration of electrochemical reaction processes, including the evolution of morphology and structure, phase transition, interface behaviors, and K + movement, etc. As a result, the obtained K + storage mechanism via analyzing aforementioned reaction processes sheds light on furthering practical application of PIBs. Typical electrochemical analysis methods are capable of obtaining physical and chemical characteristics. The advent of in situ electrochemical measurements enables dynamic observation and monitoring, thereby gaining extensive insights into the intricate mechanism of capacity degradation and interface kinetics. By coupling with these powerful electrochemical characterization techniques, inspiring works in PIBs will burgeon into wide realms of energy storage fields. In this review, some typical electroanalytical tests and in situ hyphenated measurements are described with the main concentration on how these techniques play a role in investigating the potassium storage mechanism for PIBs and achieving encouraging results. Abstract : A state‐of‐the‐art review of electroanalytical methods and advanced in‐situ characterization techniques for investigating the potassium storage mechanism in potassium ion batteries (PIBs) is presented. Deep insights and perspectives on current challenges and future directions of advanced in‐situ characterization techniques for PIBs are elucidated.