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Taklu B, Su WN, Chiou JC, Chang CY, Nikodimos Y, Lakshmanan K, Hagos TM, Serbessa GG, Desta GB, Tekaligne TM, Ahmed SA, Yang SC, Wu SH, Hwang BJ. Mechanistic Study on Artificial Stabilization of Lithium Metal Anode via Thermal Pyrolysis of Ammonium Fluoride in Lithium Metal Batteries. ACS Appl Mater Interfaces 2024; 16:17422-17431. [PMID: 38557067 PMCID: PMC11009921 DOI: 10.1021/acsami.3c17559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/15/2024] [Accepted: 03/17/2024] [Indexed: 04/04/2024]
Abstract
The use of the "Holy Grail" lithium metal anode is pivotal to achieve superior energy density. However, the practice of a lithium metal anode faces practical challenges due to the thermodynamic instability of lithium metal and dendrite growth. Herein, an artificial stabilization of lithium metal was carried out via the thermal pyrolysis of the NH4F salt, which generates HF(g) and NH3(g). An exposure of lithium metal to the generated gas induces a spontaneous reaction that forms multiple solid electrolyte interface (SEI) components, such as LiF, Li3N, Li2NH, LiNH2, and LiH, from a single salt. The artificially multilayered protection on lithium metal (AF-Li) sustains stable lithium stripping/plating. It suppresses the Li dendrite under the Li||Li symmetric cell. The half-cell Li||Cu and Li||MCMB systems depicted the attributions of the protective layer. We demonstrate that the desirable protective layer in AF-Li exhibited remarkable capacity retention (CR) results. LiFePO4 (LFP) showed a CR of 90.6% at 0.5 mA cm-2 after 280 cycles, and LiNi0.5Mn0.3Co0.2O2 (NCM523) showed 58.7% at 3 mA cm-2 after 410 cycles. Formulating the multilayered protection, with the simultaneous formation of multiple SEI components in a facile and cost-effective approach from NH4F as a single salt, made the system competent.
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Affiliation(s)
- Bereket
Woldegbreal Taklu
- Nano-Electrochemistry
Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- Sustainable
Electrochemical Energy Development (SEED) Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Wei-Nien Su
- Nano-Electrochemistry
Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- Sustainable
Electrochemical Energy Development (SEED) Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Jeng-Chian Chiou
- Nano-Electrochemistry
Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Chia-Yu Chang
- Nano-Electrochemistry
Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Yosef Nikodimos
- Nano-Electrochemistry
Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Keseven Lakshmanan
- Nano-Electrochemistry
Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Teklay Mezgebe Hagos
- Nano-Electrochemistry
Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Gashahun Gobena Serbessa
- Nano-Electrochemistry
Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- Battery
Research Center of Green Energy, Ming-Chi
University of Technology, New Taipei
City 24301, Taiwan
| | - Gidey Bahre Desta
- Nano-Electrochemistry
Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Teshager Mekonnen Tekaligne
- Nano-Electrochemistry
Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Shadab Ali Ahmed
- Nano-Electrochemistry
Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Sheng-Chiang Yang
- Nano-Electrochemistry
Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - She-Huang Wu
- Nano-Electrochemistry
Laboratory, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- Sustainable
Electrochemical Energy Development (SEED) Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Bing Joe Hwang
- Nano-Electrochemistry
Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- Sustainable
Electrochemical Energy Development (SEED) Center, National Taiwan University of Science and Technology, Taipei 106, Taiwan
- National
Synchrotron Radiation Research Center (NSRRC), Hsin-Chu 30076, Taiwan
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