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http://hdl.handle.net/10397/95785
Title: | Stabilizing microsized Sn anodes for Na-ion batteries with extended ether electrolyte chemistry | Authors: | Du, X Gao, Y Hou, Z Guo, X Zhu, Y Zhang, B |
Issue Date: | 21-Jan-2022 | Source: | ACS applied energy materials, 21 Jan. 2022, v. 5, no. 2, p. 2252-2259 | Abstract: | Electrolytes using ether solvents show great advantages in building robust solid electrolyte interphases (SEIs), which play a pivotal role in stabilizing alloy anodes in Na-ion batteries. Herein, we deviate from the most widely adopted methyl glymes (represented by monoglyme) to enrich the ether-based electrolyte chemistry. Stable cycling of Sn microparticles is realized in two ether electrolytes derived from the linear ethylene glycol diethyl ether (ethyl glyme) and cyclic ether (tetrahydrofuran). We reveal that the formation of thin yet strong SEIs accounts for ameliorated stability and excellent rate capability. The inorganic species in the as-constructed SEIs have low crystallinity and are uniformly distributed among the organic matrix, rendering superb mechanical properties in accommodating the deformation upon sodiation, as confirmed by nanoindentation tests. This study opens the door to exploring the large ether family besides the methyl glymes, and the unraveled mechanics/microstructure correlation of SEIs can help screen the potential candidates. | Keywords: | Atomic force microscopy Ether electrolyte Na-ion battery Sn anode Solid electrolyte interphase |
Publisher: | American Chemical Society | Journal: | ACS applied energy materials | EISSN: | 2574-0962 | DOI: | 10.1021/acsaem.1c03774 | Rights: | © 2022 American Chemical Society This document is the Accepted Manuscript version of a Published Work that appeared in final form in https://pubs.acs.org/journal/aaemcq, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://dx.doi.org/10.1021/acsaem.1c03774. ACS Applied Energy Materials is available at https://pubs.acs.org/journal/aaemcq. |
Appears in Collections: | Journal/Magazine Article |
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Du_Sn_Anodes_Na-Ion.pdf | Pre-Published version | 1.6 MB | Adobe PDF | View/Open |
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