Electrolyte Chemistry in 3D Metal Oxide Nanorod Arrays Deciphers Lithium Dendrite-Free Plating/Stripping Behaviors for High-Performance Lithium Batteries
| Autor: | Yang-Kook Sun, Luigi Cavallo, Hai Ming, Qian Li, Zhen Cao, Haoran Cheng, Jun Ming, Limin Wang, Geon Tae Park, Yingqiang Wu, Gang Liu, Dongming Yin |
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| Rok vydání: | 2021 |
| Předmět: |
Battery (electricity)
Oxide chemistry.chemical_element 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Metal chemistry.chemical_compound chemistry Chemical engineering visual_art Plating visual_art.visual_art_medium General Materials Science Lithium Nanorod Dendrite (metal) Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | The Journal of Physical Chemistry Letters. 12:4857-4866 |
| ISSN: | 1948-7185 |
| DOI: | 10.1021/acs.jpclett.1c01049 |
| Popis: | Lithium 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 Cu2O and Cu nanorod arrays were in situ designed on copper foil. We find that the dendrite and electrolyte decomposition can be mitigated effectively by Cu2O nanoarrays, while the battery failed fast when the Cu nanoarrays were used. We show that Li2O (i.e., formed in the lithiation of Cu2O) 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. |
| Databáze: | OpenAIRE |
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