Combining Quinone‐Based Cathode with an Efficient Borate Electrolyte for High‐Performance Magnesium Batteries
| Autor: | Vinayan Bhaghavathi Parambath, Yanlei Xiu, Maximilian Fichtner, Zhenyou Li, Zhirong Zhao-Karger, Ziming Ding, Adam Reupert, Li-Ping Wang |
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| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Electrolyte 010402 general chemistry Magnesium battery Electrochemistry 7. Clean energy 01 natural sciences Energy storage law.invention law Electrical and Electronic Engineering Boron Magnesium 021001 nanoscience & nanotechnology Cathode 0104 chemical sciences Quinone chemistry 0210 nano-technology ddc:600 |
| Zdroj: | Batteries & Supercaps Batteries & supercaps, 4 (12), 1850-1857 |
| ISSN: | 2566-6223 |
| DOI: | 10.1002/batt.202100163 |
| Popis: | Rechargeable magnesium batteries are gaining attention as promising candidates for large-scale energy storage applications because of their potentially high energy, safety and sustainability. However, the development of Mg batteries is impeded by the lack of efficient cathode materials and compatible electrode-electrolyte combinations. Herein, we demonstrate a new poly(1,4-anthraquinone)/Ketjenblack composite (14PAQ@KB) in combination with non-corrosive magnesium tetrakis(hexafluoroisopropyloxy) borate Mg[B(hfip)(4)](2) (hfip=OC(H)(CF3)(2)) electrolyte towards high-energy and long-lifespan Mg batteries. This combination exhibits prominent electrochemical performance including a maximum discharge capacity of 242 mA h g(-1) (approximately 93 % of the theoretical capacity), superior cycling stability (81 mA h g(-1) after 1000 cycles), and excellent rate capability (120 mA h g(-1) at 5 C). |
| Databáze: | OpenAIRE |
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