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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:31 |
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Conference: Bucharest University Faculty of Physics 2024 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
The Impact of V2C MXenes on VRFB Energy Storage
Authors:
Bogdan Ciprian MITREA (1), Cornelia DIAC (1), Tom Matei IACOB (1), Cornelia NICHITA (1,2)
*
Affiliation:
1)University of Bucharest, Faculty of Physics, CTT-3Nano-SAE Research Centre, 405 Atomistilor Street, 077125, Magurele, Romania.
2) National Institute for Chemical – Pharmaceutical Research and Development, 112 Vitan Avenue, 031299, Bucharest, Romania.
E-mail
bogdan.mitrea@3nanosae.org
Keywords:
VRFB, Battery, MXene
Abstract:
The potential of Vanadium Redox Flow Batteries (VRFBs) for large-scale energy storage is attributed to their safety, longevity, and eco-friendliness [1]. VRFB technology employs vanadium species in different oxidation states within their electrolyte solutions to efficiently store and retrieve energy [2]. Nonetheless, the challenge of low energy density and instability persists [3]. MXenes have shown potential in enhancing the anodic performance of VRFBs by acting as electrocatalysts for the V2+/V3+ reaction, leading to improved battery efficiency [4]. One viable approach to address this challenge involves the utilization of V2C MXenes to enhance the anodic performance and overall efficiency of VRFBs. The integration of V2C MXenes has demonstrated a substantial increase in ion storage capacity and rate performance. The optimisation strategies and the resultant performance of the VRFBs were assessed via two primary experimental techniques: cyclic voltammetry, which was employed to probe the redox and catalytic reactions, and polarisation curve analysis, which was utilised to measure the correlation between the battery voltage and current during the charge/discharge cycles. These methodologies provided a comprehensive and rigorous evaluation of the effectiveness of the enhancements incorporated into the VRFBs.
References:
[1] Yang, B. and Mu, A. (2023). Numerical analysis of mass transfer mechanisms in vanadium redox flow batteries: impact on battery performance.. https://doi.org/10.21203/rs.3.rs-3136115/v1
[2] Li, W., Zaffou, R., Sholvin, C., Perry, M., & She, Y. (2013). Vanadium redox-flow-battery electrolyte preparation with reducing agents. Ecs Transactions, 53(7), 93-99. https://doi.org/10.1149/05307.0093ecst
[3] Li, L., Kim, S., Wang, W., Vijayakumar, M., Nie, Z., Chen, B., … & Yang, Z. (2011). A stable vanadium redox‐flow battery with high energy density for large‐scale energy storage. Advanced Energy Materials, 1(3), 394-400. https://doi.org/10.1002/aenm.201100008.
[4] Mizrak, A., Uzun, S., Aküzüm, B., Agartan, L., Gogotsi, Y., & Kumbur, E. (2021). Two-dimensional mxene modified electrodes for improved anodic performance in vanadium redox flow batteries. Journal of the Electrochemical Society, 168(9), 090518. https://doi.org/10.1149/1945-7111/ac22cd
Acknowledgement:
The current work was supported by a service contract, No. 20230000000820/08.08.2023
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