期刊
SMALL METHODS
卷 5, 期 12, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smtd.202101130
关键词
electroanalytical methods; energy storage mechanisms; in situ electrochemical techniques; potassium ion batteries
资金
- Jinan University [88016105, 55800001]
- discipline construction outstanding young backbone project [12819023]
- Fundamental Research Funds for the Central Universities [21620317]
- Guangdong Basic and Applied Basic Research Foundation [2020A1515110611, 2021A1515010362]
- Guangzhou Basic and Applied Basic Research Foundation [202102020995]
The advancement of potassium ion batteries (PIBs) driven by the scarcity of lithium resources is accelerating, with major progress based on the optimization of electrode materials, electrolytes, and other components, as well as in-depth exploration of electrochemical reaction processes. The obtained K+ storage mechanism sheds light on further practical application and inspires works in wide realms of energy storage fields.
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.
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