| Autor: |
Lei Yan, Ya-e Qi, Xiaoli Dong, Yonggang Wang, Yongyao Xia |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
eScience, Vol 1, Iss 2, Pp 212-218 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2667-1417 |
| DOI: |
10.1016/j.esci.2021.12.002 |
| Popis: |
Ammonium-ion batteries are promising solutions for large-scale energy storage systems owing to their cost-effectiveness, safety, and sustainability. Herein, we propose an aqueous ammonium-ion battery based on an organic poly(1,5-naphthalenediamine) anode and an inorganic Prussian blue cathode in 19 M (M: mol kg−1) CH3COONH4 electrolyte. Its operation involves a reversible coordination reaction (C=N/C–N– conversion) in the anode and the NH4+ insertion/extraction reaction in the cathode, along with NH4+ acting as the charge carrier in a rocking-chair battery. Benefiting from the fast kinetics and stability of both electrodes, this aqueous ammonium-ion battery shows an excellent rate capability and long cycle stability for 500 cycles. Moreover, an energy density as high as 31.8 Wh kg−1 can be achieved, based on the total mass of the cathode and anode. Surprisingly, this aqueous ammonium-ion battery works well over a wide temperature range from −40 to 80 °C. This work will provide new opportunities to build wide-temperature aqueous batteries and broaden the horizons for large-scale energy storage systems. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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