An Additive Incorporated Non-Nucleophilic Electrolyte for Stable Magnesium Ion Batteries

Authors

Mao-Ling Xie, 1. College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, Fujian, China;3. i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science, Suzhou 215123, Jiangsu, China;
Jun Wang, 1. College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, Fujian, China;
Chen-Ji Hu, 2. In-Situ Center for Physical Science, School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China;3. i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science, Suzhou 215123, Jiangsu, China;
Lei Zheng, 3. i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science, Suzhou 215123, Jiangsu, China;
Hua-Bin Kong, 1. College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, Fujian, China;
Yan-Bin Shen, 3. i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science, Suzhou 215123, Jiangsu, China;
Hong-Wei Chen, 1. College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, Fujian, China;Follow
Li-Wei Chen, 2. In-Situ Center for Physical Science, School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China;3. i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science, Suzhou 215123, Jiangsu, China;Follow

Corresponding Author

Hong-Wei Chen(hwchen@hqu.edu.cn);
Li-Wei Chen(lwchen2008@sinano.ac.cn)

Abstract

Non-nucleophilic electrolytes are promising next-generation highly stable electrolytes for magnesium-ion batteries (MIBs). However, a passivation layer on Mg metal anode usually blocks Mg²⁺ diffusion, leading to poor reaction kinetics and low Coulombic efficiency of the Mg plating/stripping in these electrolytes. Here we explore the utilization of phenyl disulfide (PDF) as a film-forming additive for non-nucleophilic electrolytes to regulate the interfacial chemistry on Mg metal anode. Phenyl-thiolate generated from the PDF additive was found to suppress the unfavorable surface blocking layer, resulted in a high Coulombic efficiency of up to 99.5% for the Mg plating/stripping process as well as a remarkably decreased overpotential. The full battery consisting of Mg metal anode and Mo₆S₇Se cathode remained stable in the PDF additive-containing electrolyte at 0.1 C over 150 cycles at room temperature.

Graphical Abstract

Keywords

magnesium-ion batteries, non-nucleophilic electrolyte, interface, additives, phenyl disulfide

DOI Link

https://doi.org/10.13208/j.electrochem.210856

Publication Date

2022-03-28

Online Available Date

2022-03-22

Revised Date

2022-01-20

Received Date

2021-12-28

Recommended Citation

Mao-Ling Xie, Jun Wang, Chen-Ji Hu, Lei Zheng, Hua-Bin Kong, Yan-Bin Shen, Hong-Wei Chen, Li-Wei Chen. An Additive Incorporated Non-Nucleophilic Electrolyte for Stable Magnesium Ion Batteries[J]. Journal of Electrochemistry, 2022 , 28(3): 2108561.
DOI: 10.13208/j.electrochem.210856
Available at: https://jelectrochem.xmu.edu.cn/journal/vol28/iss3/1