|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)|
|Source Publication||JOURNAL OF ALLOYS AND COMPOUNDS
Impact Factor & Quartile|
|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.|
Electrochemical energy storage devices
Energy storage device
Energy storage mechanism
Multi-potential step measurement
Potential step measurements
Solid liquid reactions
|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)
|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
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.
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.
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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