Reversible Magnesium Metal Anode Enabled by Cooperative Solvation/Surface Engineering in Carbonate Electrolytes
Abstract Magnesium metal anode holds great potentials toward future high energy and safe rechargeable magnesium battery technology due to its divalent redox and dendrite-free nature. Electrolytes based on Lewis acid chemistry enable the reversible Mg plating/stripping, while they fail to match most...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-09-01
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| Series: | Nano-Micro Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s40820-021-00716-1 |
| _version_ | 1823936872425979904 |
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| author | Caiyun Wang Yao Huang Yunhao Lu Hongge Pan Ben Bin Xu Wenping Sun Mi Yan Yinzhu Jiang |
| author_facet | Caiyun Wang Yao Huang Yunhao Lu Hongge Pan Ben Bin Xu Wenping Sun Mi Yan Yinzhu Jiang |
| author_sort | Caiyun Wang |
| collection | DOAJ |
| description | Abstract Magnesium metal anode holds great potentials toward future high energy and safe rechargeable magnesium battery technology due to its divalent redox and dendrite-free nature. Electrolytes based on Lewis acid chemistry enable the reversible Mg plating/stripping, while they fail to match most cathode materials toward high-voltage magnesium batteries. Herein, reversible Mg plating/stripping is achieved in conventional carbonate electrolytes enabled by the cooperative solvation/surface engineering. Strongly electronegative Cl from the MgCl2 additive of electrolyte impairs the Mg…O = C interaction to reduce the Mg2+ desolvation barrier for accelerated redox kinetics, while the Mg2+-conducting polymer coating on the Mg surface ensures the facile Mg2+ migration and the effective isolation of electrolytes. As a result, reversible plating and stripping of Mg is demonstrated with a low overpotential of 0.7 V up to 2000 cycles. Moreover, benefitting from the wide electrochemical window of carbonate electrolytes, high-voltage (> 2.0 V) rechargeable magnesium batteries are achieved through assembling the electrode couple of Mg metal anode and Prussian blue-based cathodes. The present work provides a cooperative engineering strategy to promote the application of magnesium anode in carbonate electrolytes toward high energy rechargeable batteries. |
| first_indexed | 2024-12-16T22:54:42Z |
| format | Article |
| id | doaj.art-f2c510273b18444095e6edf10fb414f0 |
| institution | Directory Open Access Journal |
| issn | 2311-6706 2150-5551 |
| language | English |
| last_indexed | 2024-12-16T22:54:42Z |
| publishDate | 2021-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nano-Micro Letters |
| spelling | doaj.art-f2c510273b18444095e6edf10fb414f02022-12-21T22:12:58ZengSpringerOpenNano-Micro Letters2311-67062150-55512021-09-0113111110.1007/s40820-021-00716-1Reversible Magnesium Metal Anode Enabled by Cooperative Solvation/Surface Engineering in Carbonate ElectrolytesCaiyun Wang0Yao Huang1Yunhao Lu2Hongge Pan3Ben Bin Xu4Wenping Sun5Mi Yan6Yinzhu Jiang7School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang UniversitySchool of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang UniversitySchool of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang UniversitySchool of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang UniversityMechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria UniversitySchool of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang UniversitySchool of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang UniversitySchool of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang UniversityAbstract Magnesium metal anode holds great potentials toward future high energy and safe rechargeable magnesium battery technology due to its divalent redox and dendrite-free nature. Electrolytes based on Lewis acid chemistry enable the reversible Mg plating/stripping, while they fail to match most cathode materials toward high-voltage magnesium batteries. Herein, reversible Mg plating/stripping is achieved in conventional carbonate electrolytes enabled by the cooperative solvation/surface engineering. Strongly electronegative Cl from the MgCl2 additive of electrolyte impairs the Mg…O = C interaction to reduce the Mg2+ desolvation barrier for accelerated redox kinetics, while the Mg2+-conducting polymer coating on the Mg surface ensures the facile Mg2+ migration and the effective isolation of electrolytes. As a result, reversible plating and stripping of Mg is demonstrated with a low overpotential of 0.7 V up to 2000 cycles. Moreover, benefitting from the wide electrochemical window of carbonate electrolytes, high-voltage (> 2.0 V) rechargeable magnesium batteries are achieved through assembling the electrode couple of Mg metal anode and Prussian blue-based cathodes. The present work provides a cooperative engineering strategy to promote the application of magnesium anode in carbonate electrolytes toward high energy rechargeable batteries.https://doi.org/10.1007/s40820-021-00716-1Rechargeable magnesium batteriesMetal anodeSolvation effectPassivationCarbonate electrolytes |
| spellingShingle | Caiyun Wang Yao Huang Yunhao Lu Hongge Pan Ben Bin Xu Wenping Sun Mi Yan Yinzhu Jiang Reversible Magnesium Metal Anode Enabled by Cooperative Solvation/Surface Engineering in Carbonate Electrolytes Nano-Micro Letters Rechargeable magnesium batteries Metal anode Solvation effect Passivation Carbonate electrolytes |
| title | Reversible Magnesium Metal Anode Enabled by Cooperative Solvation/Surface Engineering in Carbonate Electrolytes |
| title_full | Reversible Magnesium Metal Anode Enabled by Cooperative Solvation/Surface Engineering in Carbonate Electrolytes |
| title_fullStr | Reversible Magnesium Metal Anode Enabled by Cooperative Solvation/Surface Engineering in Carbonate Electrolytes |
| title_full_unstemmed | Reversible Magnesium Metal Anode Enabled by Cooperative Solvation/Surface Engineering in Carbonate Electrolytes |
| title_short | Reversible Magnesium Metal Anode Enabled by Cooperative Solvation/Surface Engineering in Carbonate Electrolytes |
| title_sort | reversible magnesium metal anode enabled by cooperative solvation surface engineering in carbonate electrolytes |
| topic | Rechargeable magnesium batteries Metal anode Solvation effect Passivation Carbonate electrolytes |
| url | https://doi.org/10.1007/s40820-021-00716-1 |
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