Designing a Se-intercalated MOF/MXene-derived nanoarchitecture for advancing the performance and durability of lithium-selenium batteries
- Authors
- Vallem, Sowjanya; Song, Seunghyun; Oh, Yoonju; Kim, Jihyun; Li, Man; Li, Yang; Cheng, Xiong; Bae, Joonho
- Issue Date
- Jul-2024
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Keywords
- Lithium-selenium batteries; Se host material; MOF/MXene composite; Synergistic integration; High-performance; Durable batteries
- Citation
- JOURNAL OF COLLOID AND INTERFACE SCIENCE, v.665, pp 1017 - 1028
- Pages
- 12
- Journal Title
- JOURNAL OF COLLOID AND INTERFACE SCIENCE
- Volume
- 665
- Start Page
- 1017
- End Page
- 1028
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/91631
- DOI
- 10.1016/j.jcis.2024.03.159
- ISSN
- 0021-9797
1095-7103
- Abstract
- Lithium-selenium batteries have emerged as a promising alternative to lithium-sulfur batteries due to their high electrical conductivity and comparable volume capacity. However, challenges such as the shuttle effect of polyselenides and high-volume fluctuations hinder their practical implementation. To address these issues, we propose synthesizing Fe-CNT/TiO2 catalyst through high-temperature sintering of an amalgamated nanoarchitecture of carbon nanotubes decorated metal-organic framework (MOF) and MXene, optimized for efficient selenium hosting, leveraging the distinctive physicochemical properties. The catalytic features inherent in the porous Se@Fe-CNT/TiO2 nanoarchitecture were instrumental in promoting efficient ion and electron transport, and lithium-polyselenide kinetics, while its inherent porosity could play a crucial role in inhibiting electrode stress during cycling. This nanoarchitecture exhibits remarkable battery performance, retaining 99.7% of theoretical capacity after 425 cycles at 0.5 C rate and demonstrating 95.8% capacity retention after 2000 cycles at 1 C rate, with similar to 100% Coulombic efficiency. Additionally, the Se@Fe-CNT/TiO2 electrode exhibited an impressive recovery of 297.5 mAh/g (97.9%) capacity after undergoing 450 cycles at a charging rate of 10 C and a discharging rate of 1 C. This synergistic integration of MOF- and MXene-derived materials unveils new possibilities for high-performance and durable LSeBs, thus advancing electrochemical energy storage systems.
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