Journal article
Stoichiometric Ti3C2Tx Coating for Inhibiting Dendrite Growth in Anode-Free Lithium Metal Batteries
Energy & environmental materials (Hoboken, N.J.), v 7(4), e12686
28 Feb 2024
Abstract
Lithium metal batteries (LMBs) and anode-free LMBs (AFLMBs) present a solution to the need for batteries with a significantly superior theoretical energy density. However, their adoption is hindered by low Coulombic efficiency (CE) and rapid capacity fading, primarily due to the formation of unstable solid electrolyte interphase (SEI) layer and Li dendrite growth as a result of uneven Li plating. Here, we report on the use of a stoichiometric Ti3C2Tx (S-Ti3C2Tx) MXene coating on the copper current collector to enhance the cyclic stability of an anode-free lithium metal battery. The S-Ti3C2Tx coating provides abundant nucleation sites, thereby lowering the overpotential for Li nucleation, and promoting uniform Li plating. Additionally, the fluorine (-F) termination of S-Ti3C2Tx participates in the SEI formation, producing a LiF-rich SEI layer, vital for stabilizing the SEI and improving cycle life. Batteries equipped with S-Ti3C2Tx@Cu current collectors displayed reduced Li consumption during stable SEI formation, resulting in a significant decrease in capacity loss. AFLMBs with S-Ti3C2Tx@Cu current collectors achieved a high initial capacity density of 4.2 mAh cm(-2), 70.9% capacity retention after 50 cycles, and an average CE of 98.19% in 100 cycles. This innovative application of MXenes in the energy field offers a promising strategy to enhance the performance of AFLMBs and could potentially accelerate their commercial adoption.
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Details
- Title
- Stoichiometric Ti3C2Tx Coating for Inhibiting Dendrite Growth in Anode-Free Lithium Metal Batteries
- Creators
- Xiangrong Zeng - Korea Advanced Institute of Science and TechnologyManmatha Mahato - Korea Advanced Institute of Science and TechnologyWoong Oh - Korea Advanced Institute of Science and TechnologyHyunjoon Yoo - Korea Advanced Institute of Science and TechnologyVan Hiep Nguyen - Korea Advanced Institute of Science and TechnologySaewoong Oh - Korea Advanced Institute of Science and TechnologyGeetha Valurouthu - Drexel UniversitySoon-Ki Jeong - Soonchunhyang UniversityChi Won Ahn - National NanoFab CenterYury Gogotsi - Drexel UniversityIl-Kwon Oh - Korea Adv Inst Sci & Technol KAIST, Dept Mech Engn, Natl Creat Res Initiat Functionally Antagonist Nan, 291 Daehak Ro, Daejeon 34141, South Korea
- Publication Details
- Energy & environmental materials (Hoboken, N.J.), v 7(4), e12686
- Publisher
- Wiley
- Number of pages
- 10
- Grant note
- LG energy solution-KAIST Frontier Research Laboratory Semiconductor-Secondary Battery Interfacing Platform Technology Development Project of NNFC 2015R1A3A2028975 / LG energy solution-KAIST Frontier Research Laboratory 2022 NRF-2021M3H4A1A03047333 / Creative Research Initiative Program 2022 / National Research Foundation of Korea (NRF); National Research Foundation of Korea
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:001176829900001
- Scopus ID
- 2-s2.0-85186248519
- Other Identifier
- 991021863135004721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary