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Title: A Rechargeable Battery with an Iron Metal Anode
Abstract

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 FeSO4electrolyte 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 LiFePO4can pair up with the iron metal anode in a hybrid cell, delivering stable performance as well.

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NSF-PAR ID:
10461450
Author(s) / Creator(s):
 ;  ;  ;  ;  ;  ;  
Publisher / Repository:
Wiley Blackwell (John Wiley & Sons)
Date Published:
Journal Name:
Advanced Functional Materials
Volume:
29
Issue:
20
ISSN:
1616-301X
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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    Acknowledgment

    This work was partially supported by the U.S. National Science Foundation (NSF) Award No. ECCS-1931088. S.L. and H.W.S. acknowledge the support from the Improvement of Measurement Standards and Technology for Mechanical Metrology (Grant No. 22011044) by KRISS.

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