Electrolyte Chemistry in 3D Metal Oxide Nanorod Arrays Deciphers Lithium Dendrite-Free Plating/Stripping Behaviors for High-Performance Lithium Batteries
KAUST DepartmentKAUST Catalysis Center (KCC)
Physical Science and Engineering (PSE) Division
Chemical Science Program
Embargo End Date2022-05-18
Permanent link to this recordhttp://hdl.handle.net/10754/669435
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AbstractLithium dendrite-free deposition is crucial to stabilizing lithium batteries, where the three-dimensional (3D) metal oxide nanoarrays demonstrate an impressive capability to suppress dendrite due to the spatial effect. Herein, we introduce a new insight into the ameliorated lithium plating process on 3D nanoarrays. As a paradigm, novel 3D Cu<sub>2</sub>O and Cu nanorod arrays were <i>in situ</i> designed on copper foil. We find that the dendrite and electrolyte decomposition can be mitigated effectively by Cu<sub>2</sub>O nanoarrays, while the battery failed fast when the Cu nanoarrays were used. We show that Li<sub>2</sub>O (i.e., formed in the lithiation of Cu<sub>2</sub>O) is critical to stabilizing the electrolyte; otherwise, the electrolyte would be decomposed seriously. Our viewpoint is further proved when we revisit the metal (oxide) nanoarrays reported before. Thus, we discovered the importance of electrolyte stability as a precondition for nanoarrays to suppress dendrite and/or achieve a reversible lithium plating/stripping for high-performance lithium batteries.
CitationLi, Q., Cao, Z., Liu, G., Cheng, H., Wu, Y., Ming, H., … Ming, J. (2021). Electrolyte Chemistry in 3D Metal Oxide Nanorod Arrays Deciphers Lithium Dendrite-Free Plating/Stripping Behaviors for High-Performance Lithium Batteries. The Journal of Physical Chemistry Letters, 4857–4866. doi:10.1021/acs.jpclett.1c01049
SponsorsThis work is supported by the National Natural Science Foundation of China (21978281, 21975250, 21703285), the National Key R&D Program of China (2017YFE0198100), and the Scientific and Technological Developing Project of Jilin Province (YDZJ202101ZYTS022). The authors also thank the Independent Research Project of the State Key Laboratory of Rare Earth Resources Utilization (110005R086), Changchun Institute of Applied Chemistry. The simulations were performed on the KAUST supercomputer.
PublisherAmerican Chemical Society (ACS)
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