期刊
ADVANCED FUNCTIONAL MATERIALS
卷 29, 期 20, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201900911
关键词
aqueous electrolytes; iron metal anode; iron metal battery; iron topotactic insertion; Prussian blue
类别
资金
- U.S. National Science Foundation [1551693]
To date, tremendous efforts of the battery community are devoted to batteries that employ Li+, Na+, and K+ as charge carriers and nonaqueous electrolytes. However, aqueous batteries hold great promise for stationary energy storage due to their inherent low cost and high safety. Among metal batteries that use aqueous electrolytes, zinc metal batteries are the focus of attention. In this study, iron as an anode candidate in aqueous batteries is investigated because iron is undoubtedly the most earth-abundant and cost-effective metal anode. Reversible iron plating/stripping in a FeSO4 electrolyte is demonstrated on the anode side and reversible topotactic (de)insertion of Fe2+ in a Prussian blue analogue cathode is showcased. Furthermore, it is revealed that LiFePO4 can pair up with the iron metal anode in a hybrid cell, delivering stable performance as well.
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