Deciphering the electrochemical behavior of Mn-based electrode-electrolyte coupling system toward advanced electrochemical energy storage devices

doi:10.1016/j.jallcom.2023.170198

	Deciphering the electrochemical behavior of Mn-based electrode-electrolyte coupling system toward advanced electrochemical energy storage devices
	Sun, Zhenheng; Fu, JC(傅杰财); Zhang, Yaxiong; Wang, Yuhu; Liu, Yupeng; Cheng, Situo; Cui, Xiaosha; Xie, EQ(谢二庆)
	2023-09-05
Source Publication	JOURNAL OF ALLOYS AND COMPOUNDS Impact Factor & Quartile
ISSN	0925-8388
Volume	954
Abstract	Mn-based aqueous electrochemical energy storage devices (AEESDs) are promising candidates for sustainable and flexible energy applications due to their environmental benignity, high theoretical capacity and versatile architecture. One of the effective strategies to boost their electrochemical performance is to introduce Mn2+ ions into the electrolyte, which can trigger a reversible solid/liquid reaction process of Mn2+/MnO2 deposition/dissolution with a high capacity and an ideal electrochemical kinetics. However, the complex energy storage mechanism that involves the Mn2+/MnO2 deposition/dissolution and the intrinsic insertion/extraction of proton and metal ions remains elusive and poses a great challenge for the rational design of Mn-based AEESDs. Moreover, the insufficient dissolution of MnO2 can lead to the deterioration of performance, which hinders their practical applications. To address these issues, we systematically investigate the Mn2+ ions added Mn-based AEESDs by employing a novel quasi-steady electrochemical measurement technique, and establish a kinetic evolution model to elucidate the solid/liquid reaction at different interface conditions. Furthermore, a full cell is assembled and measured to explore the real electrochemical process of Mn-based electrode with additive Mn2+ ions, which is influenced by the potential windows and charge-discharge rate. This study may provide new insights for the development of advanced AEESDs. © 2023 Elsevier B.V.
Keyword	Deposition Deterioration Electric discharges Electrochemical electrodes Electrolytes Manganese oxide Metal ions Reaction kinetics Electrochemical behaviors Electrochemical energy storage devices Energy storage device Energy storage mechanism Ionic insertion/extraction Mn2+/MnO2 deposition/dissolution Multi-potential step measurement Potential step measurements Solid liquid reactions Storage mechanism
Publisher	Elsevier Ltd
DOI	10.1016/j.jallcom.2023.170198
Indexed By	EI
Language	英语
EI Accession Number	20231713948656
EI Keywords	Energy storage
EI Classification Number	525.7 Energy Storage ; 531.1 Metallurgy ; 701.1 Electricity: Basic Concepts and Phenomena ; 702 Electric Batteries and Fuel Cells ; 802.2 Chemical Reactions ; 802.3 Chemical Operations ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 951 Materials Science
Original Document Type	Journal article (JA)
Citation statistics
Document Type	期刊论文
Identifier	https://ir.lzu.edu.cn/handle/262010/500540
Collection	物理科学与技术学院
Corresponding Author	Fu, Jiecai
Affiliation	Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou; 730000, China
First Author Affilication	School of Physical Sicence and Technology
Corresponding Author Affilication	School of Physical Sicence and Technology
Recommended Citation GB/T 7714	Sun, Zhenheng,Fu, Jiecai,Zhang, Yaxiong,et al. Deciphering the electrochemical behavior of Mn-based electrode-electrolyte coupling system toward advanced electrochemical energy storage devices[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2023,954.
APA	Sun, Zhenheng.,Fu, Jiecai.,Zhang, Yaxiong.,Wang, Yuhu.,Liu, Yupeng.,...&Xie, Erqing.(2023).Deciphering the electrochemical behavior of Mn-based electrode-electrolyte coupling system toward advanced electrochemical energy storage devices.JOURNAL OF ALLOYS AND COMPOUNDS,954.
MLA	Sun, Zhenheng,et al."Deciphering the electrochemical behavior of Mn-based electrode-electrolyte coupling system toward advanced electrochemical energy storage devices".JOURNAL OF ALLOYS AND COMPOUNDS 954(2023).

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