Acetic acid additive in NaNO3 aqueous electrolyte for long-lifespan Mg-air batteries
Mg-air batteries have attracted tremendous attention as a potential next-generation power source for portable electronics and e-transportation due to their remarkable high theoretical volumetric energy density, environmental sustainability, and cost-effectiveness. However, the fast hydrogen evolutio...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-02-01
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| Series: | Journal of Magnesium and Alloys |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956724000719 |
| _version_ | 1797261821244080128 |
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| author | Yaqing Zhou Fan Sun Gunahua Lin Sandrine Zanna Antoine Seyeux Philippe Marcus Jolanta Światowska |
| author_facet | Yaqing Zhou Fan Sun Gunahua Lin Sandrine Zanna Antoine Seyeux Philippe Marcus Jolanta Światowska |
| author_sort | Yaqing Zhou |
| collection | DOAJ |
| description | Mg-air batteries have attracted tremendous attention as a potential next-generation power source for portable electronics and e-transportation due to their remarkable high theoretical volumetric energy density, environmental sustainability, and cost-effectiveness. However, the fast hydrogen evolution reaction (HER) in NaCl-based aqueous electrolytes impairs the performance of Mg-air batteries and leads to poor specific capacity, low energy density, and low utilization. Thus, the conventionally used NaCl solute was proposed to be replaced by NaNO3 and acetic acid additive as a corrosion inhibitor, therefore an electrolyte engineering for long-life time Mg-air batteries is reported. The resulting Mg-air batteries based on this optimized electrolyte demonstrate an improved discharge voltage reaching ∼1.8 V for initial 5 h at a current density of 0.5 mA/cm2 and significantly prolonged cells’ operational lifetime to over 360 h, in contrast to only ∼17 h observed in NaCl electrolyte. X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry were employed to analyse the composition of surface film and scanning electron microscopy combined with transmission electron microscopy to clarify the morphology changes of the surface layer as a function of acetic acid addition. The thorough studies of chemical composition and morphology of corrosion products have allowed us to elucidate the working mechanism of Mg anode in this optimized electrolyte for Mg-air batteries. |
| first_indexed | 2024-04-24T23:47:18Z |
| format | Article |
| id | doaj.art-15eb617d14d14358b3e6c48b801f1d33 |
| institution | Directory Open Access Journal |
| issn | 2213-9567 |
| language | English |
| last_indexed | 2024-04-24T23:47:18Z |
| publishDate | 2024-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj.art-15eb617d14d14358b3e6c48b801f1d332024-03-15T04:43:29ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672024-02-01122825839Acetic acid additive in NaNO3 aqueous electrolyte for long-lifespan Mg-air batteriesYaqing Zhou0Fan Sun1Gunahua Lin2Sandrine Zanna3Antoine Seyeux4Philippe Marcus5Jolanta Światowska6Chimie ParisTech - CNRS, PSL University, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, Paris 75005, FranceChimie ParisTech - CNRS, PSL University, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, Paris 75005, FranceChimie ParisTech - CNRS, PSL University, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, Paris 75005, FranceChimie ParisTech - CNRS, PSL University, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, Paris 75005, FranceChimie ParisTech - CNRS, PSL University, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, Paris 75005, FranceChimie ParisTech - CNRS, PSL University, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, Paris 75005, FranceCorresponding author.; Chimie ParisTech - CNRS, PSL University, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, Paris 75005, FranceMg-air batteries have attracted tremendous attention as a potential next-generation power source for portable electronics and e-transportation due to their remarkable high theoretical volumetric energy density, environmental sustainability, and cost-effectiveness. However, the fast hydrogen evolution reaction (HER) in NaCl-based aqueous electrolytes impairs the performance of Mg-air batteries and leads to poor specific capacity, low energy density, and low utilization. Thus, the conventionally used NaCl solute was proposed to be replaced by NaNO3 and acetic acid additive as a corrosion inhibitor, therefore an electrolyte engineering for long-life time Mg-air batteries is reported. The resulting Mg-air batteries based on this optimized electrolyte demonstrate an improved discharge voltage reaching ∼1.8 V for initial 5 h at a current density of 0.5 mA/cm2 and significantly prolonged cells’ operational lifetime to over 360 h, in contrast to only ∼17 h observed in NaCl electrolyte. X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry were employed to analyse the composition of surface film and scanning electron microscopy combined with transmission electron microscopy to clarify the morphology changes of the surface layer as a function of acetic acid addition. The thorough studies of chemical composition and morphology of corrosion products have allowed us to elucidate the working mechanism of Mg anode in this optimized electrolyte for Mg-air batteries.http://www.sciencedirect.com/science/article/pii/S2213956724000719Acetic acid additive in NaNO3 electrolyteElectrolyte engineeringCorrosion surface filmSurface characterizationHydrogen evolution |
| spellingShingle | Yaqing Zhou Fan Sun Gunahua Lin Sandrine Zanna Antoine Seyeux Philippe Marcus Jolanta Światowska Acetic acid additive in NaNO3 aqueous electrolyte for long-lifespan Mg-air batteries Journal of Magnesium and Alloys Acetic acid additive in NaNO3 electrolyte Electrolyte engineering Corrosion surface film Surface characterization Hydrogen evolution |
| title | Acetic acid additive in NaNO3 aqueous electrolyte for long-lifespan Mg-air batteries |
| title_full | Acetic acid additive in NaNO3 aqueous electrolyte for long-lifespan Mg-air batteries |
| title_fullStr | Acetic acid additive in NaNO3 aqueous electrolyte for long-lifespan Mg-air batteries |
| title_full_unstemmed | Acetic acid additive in NaNO3 aqueous electrolyte for long-lifespan Mg-air batteries |
| title_short | Acetic acid additive in NaNO3 aqueous electrolyte for long-lifespan Mg-air batteries |
| title_sort | acetic acid additive in nano3 aqueous electrolyte for long lifespan mg air batteries |
| topic | Acetic acid additive in NaNO3 electrolyte Electrolyte engineering Corrosion surface film Surface characterization Hydrogen evolution |
| url | http://www.sciencedirect.com/science/article/pii/S2213956724000719 |
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