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An Anode-Free Zn-MnO2 Battery.pdf
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Accepted manuscript
Embargo End Date:
2022-01-20
Type
ArticleKAUST Department
Physical Science and Engineering (PSE) DivisionMaterial Science and Engineering Program
KAUST Grant Number
OSR-CRG2018-3735Date
2021-01-20Embargo End Date
2022-01-20Submitted Date
2020-11-17Permanent link to this record
http://hdl.handle.net/10754/667183
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Aqueous Zn-based batteries are attractive because of the low cost and high theoretical capacity of the Zn metal anode. However, the Zn-based batteries developed so far utilize an excess amount of Zn (i.e., thick Zn metal anode), which decreases the energy density of the whole battery. Herein, we demonstrate an anode-free design (i.e., zero-excess Zn), which is enabled by employing a nanocarbon nucleation layer. Electrochemical studies show that this design allows for uniform Zn electrodeposition with high efficiency and stability over a range of current densities and plating capacities. Using this anode-free configuration, we showcase a Zn-MnO<sub>2</sub> battery prototype, showing 68.2% capacity retention after 80 cycles. Our anode-free design opens a new direction for implementing aqueous Zn-based batteries in energy storage systems.Citation
Zhu, Y., Cui, Y., & Alshareef, H. N. (2021). An Anode-Free Zn–MnO2 Battery. Nano Letters. doi:10.1021/acs.nanolett.0c04519Sponsors
Research reported in this work was supported by King Abdullah University of Science and Technology (KAUST) under the KAUST Stanford competitive research grant number: OSR-CRG2018-3735.Publisher
American Chemical Society (ACS)Journal
Nano LettersPubMed ID
33470104Additional Links
https://pubs.acs.org/doi/10.1021/acs.nanolett.0c04519ae974a485f413a2113503eed53cd6c53
10.1021/acs.nanolett.0c04519
Scopus Count
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