Hydrated Eutectic Electrolytes Stabilizing Quasi-Underpotential Mg Plating/Stripping for High-Voltage Mg Batteries
© 2023 Wiley-VCH GmbH..
Aqueous rechargeable Mg batteries (ARMBs) usually fail from severe anode passivation, alternatively, executing quasi-underpotential Mg plating/stripping chemistry (UPMC) on a proper heterogeneous metal substrate is a crucial remedy. Herein, a stable UPMC on Zn substrate is initially achieved in new hydrated eutectic electrolytes (HEEs), delivering an ultralow UPMC overpotential and high energy/voltage plateau of ARMBs. The unique eutectic property remarkably expands the lower limit of electrochemical stability window (ESW) of HEEs and undermines the competition between hydrogen evolution/corrosion reactions and UPMC, enabling a reversible UPMC. The UPMC is carefully revealed by multiple characterizations, which shows a low overpotential of 50 mV at 0.1 mA cm-2 over 550 h. With sulfonic acid-doped polyaniline (SPANI) cathodes, UPMC-based full cells show high energy/power densities of 168.6 Wh kg-1 /2.1 kWh kg-1 and voltage plateau of 1.3 V, far overwhelming conventional aqueous systems.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:62 |
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| Enthalten in: |
Angewandte Chemie (International ed. in English) - 62(2023), 16 vom: 11. Apr., Seite e202217945 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liu, Guigui [VerfasserIn] |
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| Links: |
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| Themen: |
Aqueous Rechargeable Magnesium Batteries |
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| Anmerkungen: |
Date Completed 03.04.2023 Date Revised 03.04.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/anie.202217945 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM352960272 |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a © 2023 Wiley-VCH GmbH. | ||
| 520 | |a Aqueous rechargeable Mg batteries (ARMBs) usually fail from severe anode passivation, alternatively, executing quasi-underpotential Mg plating/stripping chemistry (UPMC) on a proper heterogeneous metal substrate is a crucial remedy. Herein, a stable UPMC on Zn substrate is initially achieved in new hydrated eutectic electrolytes (HEEs), delivering an ultralow UPMC overpotential and high energy/voltage plateau of ARMBs. The unique eutectic property remarkably expands the lower limit of electrochemical stability window (ESW) of HEEs and undermines the competition between hydrogen evolution/corrosion reactions and UPMC, enabling a reversible UPMC. The UPMC is carefully revealed by multiple characterizations, which shows a low overpotential of 50 mV at 0.1 mA cm-2 over 550 h. With sulfonic acid-doped polyaniline (SPANI) cathodes, UPMC-based full cells show high energy/power densities of 168.6 Wh kg-1 /2.1 kWh kg-1 and voltage plateau of 1.3 V, far overwhelming conventional aqueous systems | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Aqueous Rechargeable Magnesium Batteries | |
| 650 | 4 | |a Hydrated Eutectic Electrolytes | |
| 650 | 4 | |a Passivation Inhibition | |
| 650 | 4 | |a Quasi-Underpotential Plating/Stripping | |
| 650 | 4 | |a Voltage Plateau | |
| 700 | 1 | |a Tang, Yongchao |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Hongqing |e verfasserin |4 aut | |
| 700 | 1 | |a He, Jiangfeng |e verfasserin |4 aut | |
| 700 | 1 | |a Ye, Minghui |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yufei |e verfasserin |4 aut | |
| 700 | 1 | |a Wen, Zhipeng |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Xiaoqing |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Cheng Chao |e verfasserin |4 aut | |
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