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journal article·2023-09Open access

Elucidating the Reaction Mechanism of Mn2+ Electrolyte Additives in Aqueous Zinc Batteries (Small 38/2023)

Zhao Li, Yi Li, Xiaochuan Ren, Yuanxin Zhao, Zhiguo Ren, Zeyin Yao, Wei Zhang, Hao Xu, Zhong Wang, Nian Zhang, Yueliang Gu, Xiaolong Li, Daming Zhu, Jianxin Zou

Small· Volume 19· Issue 38
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Source abstract

Abstract

Aqueous Zinc Batteries In article number 2301770, Yueliang Gu, Xiaochuan Ren, Daming Zhu, Jianxin Zou, and co-workers elucidate the reaction mechanism of Mn2+ electrolyte additives in aqueous zinc batteries (ZIBs) via operando synchrotron X-ray diffraction, ex situ X-ray absorption spectroscopy and electrochemical analyses. A reversible Mn2+/MnO2 deposition/dissolution reaction occurred at the cathode, in which the change in the electrolyte environment enabled Zn2+/Zn4SO4(OH)6•5H2O deposition/dissolution. The chemical reaction of Zn2+/Zn4SO4(OH)6•5H2O contributes no capacity and hinders the diffusion kinetics of the Mn2+/MnO2 reaction, which prevents the operation of ZIBs at high currents.
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Research context

Energy storageMaterials processing

OpenAlex topics: Advanced battery technologies research

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Affiliations

National Engineering Research Center of Light Alloy Net Forming State Key Laboratory of Metal Matrix Composite Center of Hydrogen Science School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China

Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201204 China

Institute for Clean Energy & Advanced Materials, School of Materials and Energy Southwest University Chongqing 400715 China

College of Texiles & Clothing Qingdao University Qingdao Shandong 266071 China

GRIPM Research Institute Co., Ltd. GRINM Group Beijing 101407 China

Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China

References

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