Dendrite-Free Li Metal Anode for Rechargeable Li-SO2 Batteries Employing Surface Modification with a NaAlCl4-2SO(2) Electrolyte
- Title
- Dendrite-Free Li Metal Anode for Rechargeable Li-SO2 Batteries Employing Surface Modification with a NaAlCl4-2SO(2) Electrolyte
- Author
- 김한수
- Keywords
- lithium metal; dendrite-free; surface modification; inorganic electrolyte; lithium rechargeable battery
- Issue Date
- 2018-10
- Publisher
- AMER CHEMICAL SOC
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v. 10, no. 40, page. 34699-34705
- Abstract
- Dendritic growth of a Li metal anode during cycling is one of major issues to be addressed for practical application of Li metal rechargeable batteries. Herein, we demonstrate that surface modification of Li metal with a Na-containing SO2 electrolyte can be an effective way to prevent dendritic Li growth during cell operation. The surface-modified Li metal anode exhibited no dendritic deposits even under a high areal capacity (5 mA h cm(-2)) and a high current density (3 mA cm(-2)), whereas the unmodified anode showed typical filamentary Li deposition. The surface-modified Li metal anode also demonstrated significantly enhanced electrochemical performance, which could be attributed to the newly formed Na-containing inorganic surface layer that exhibits uniform and dense properties. Consequently, surface modification with a Na-containing SO2 inorganic electrolyte is suggested as one of the most effective ways to realize a highly stable Li metal anode with dendrite-free Li deposition for Li metal-based rechargeable batteries.
- URI
- https://pubs.acs.org/doi/10.1021/acsami.8b08731https://repository.hanyang.ac.kr/handle/20.500.11754/120328
- ISSN
- 1944-8244; 1944-8252
- DOI
- 10.1021/acsami.8b08731
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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