An ultrastable lithium metal anode enabled by designed metal fluoride spansules
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Article number | eaaz3112 |
Journal / Publication | Science Advances |
Volume | 6 |
Issue number | 10 |
Online published | 6 Mar 2020 |
Publication status | Published - Mar 2020 |
Externally published | Yes |
Link(s)
DOI | DOI |
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Attachment(s) | Documents
Publisher's Copyright Statement
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-85081961159&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(e2644616-ab33-4d46-a8b4-20f3aaa69766).html |
Abstract
The lithium metal anode (LMA) is considered as a promising star for next-generation high-energy density batteries but is still hampered by the severe growth of uncontrollable lithium dendrites. Here, we design “spansules” made of NaMg(Mn)F3@C core@shell microstructures as the matrix for the LMA, which can offer a long-lasting release of functional ions into the electrolyte. By the assistance of cryogenic transmission electron microscopy, we reveal that an in situ-formed metal layer and a unique LiF-involved bilayer structure on the Li/electrolyte interface would be beneficial for effectively suppressing the growth of lithium dendrites. As a result, the spansule-modified anode affords a high Coulombic efficiency of 98% for over 1000 cycles at a current density of 2 mA cm−2, which is the most stable LMA reported so far. When coupling this anode with the Li[Ni0.8Co0.1Mn0.1]O2 cathode, the practical full cell further exhibits highly improved capacity retention after 500 cycles. © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science.
Research Area(s)
Citation Format(s)
An ultrastable lithium metal anode enabled by designed metal fluoride spansules. / Yuan, Huadong; Nai, Jianwei; Tian, He et al.
In: Science Advances, Vol. 6, No. 10, eaaz3112, 03.2020.
In: Science Advances, Vol. 6, No. 10, eaaz3112, 03.2020.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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