Intelligent Strategy of Lithium Metal Reconstruction through Generation of a Protective Layer and Regulating Lithium Deposition.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 40033476.
- Also identified by DOI 10.1021/acs.nanolett.4c05490.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Lithium metal has been considered as the most promising anode for next-generation batteries. However, its high reactivity with electrolyte and the growth of lithium dendrites hamper the application of lithium metal-based batteries. Herein, we demonstrate that lithium polyphosphides (Li<sub><i>x</i></sub>PPs) can be dissolved in diethyl carbonate (DEC) and used as a reconditioner for generating a protective layer and regulating deposition of the Li metal anode. Since Li<sub><i>x</i></sub>PPs are reduced prior to Li deposition in the lithiation process, their product can be a uniform and tight layer at the surface of the Li metal. The in situ-formed protection layer has superhigh Li ionic conductivity, and its thickness can be easily controlled by tuning the amount of Li<sub><i>x</i></sub>PPs, thus facilitating the interface stability. The Li-Li symmetry batteries show stable cycling performance at 2 mA cm<sup>-2</sup> and 1 mAh cm<sup>-2</sup> over 5000 h. Interestingly, it exhibits a self-healing function on scratched Li metal.