Download pdf
Advances in high entropy doping of Li7La3Zr2O12 (LLZO) garnet solid electrolyte: Properties and feasibility analysis
- 1 University of Science and Technology Beijing
* Author to whom correspondence should be addressed.
Abstract
It is discovered that solid electrolytes have a lower ionic conductivity than liquid electrolytes. Such situations have drawn significant attention in the scientific fields, and various practical solutions have been devised to address them. Doping is frequently employed to increase ionic conductivity to address the intrinsic flaws in solid electrolytes. Most recently, introducing a high-entropy appliance to the doping in the Li7La3Zr2O12(LLZO) garnet structure was considered to be a novel method for the performance enhancement of solid electrolytes. This paper reviewed the state-of-the-art research in the field of high-entropy solid electrolytes. The basic structure of LLZO and migration ways of Li-ions were discussed in detail. The latest approaches involving the use of high-entropy doping were introduced. In addition, the working mechanisms of the high-entropy appliance to improve the ionic conductivity were discussed. Special attention was paid to the practical high-entropy doping system. The effects of structure distortion on the ionic conductive properties such as the site energy overlapping were assessed. Finally, the outlook of the development of high-entropy doping systems was discussed. It can be concluded that all future problems related to atomic and ion diffusion can be started from this result and discussed in the next step.
Keywords
Li7La3Zr2O12(LLZO), high-entropy, ionic conductivity, solid electrolytes
[1]. Zeng, Y., Ouyang, B., Liu, J., Byeon, Y. W., Cai, Z., Miara, L. J., ... & Ceder, G. (2022). High-entropy mechanism to boost ionic conductivity. Science, 378(6626), 1320-1324.
[2]. Murugan, R., Thangadurai, V., & Weppner, W. (2007). Fast lithium ion conduction in garnet‐type Li7La3Zr2O12. Angewandte Chemie International Edition, 46(41), 7778-7781.
[3]. Xie, H., Alonso, J. A., Li, Y., Fernandez-Diaz, M. T., & Goodenough, J. B. (2011). Lithium distribution in aluminum-free cubic Li7La3Zr2O12. Chemistry of Materials, 23(16), 3587-3589.
[4]. Jia, M., Zhao, N., Huo, H., & Guo, X. (2020). Comprehensive investigation into garnet electrolytes toward application-oriented solid lithium batteries. Electrochemical Energy Reviews, 3, 656-689.
[5]. Qin Y, Liu J X, Li F, et al. A high entropy silicide by reactive spark plasma sintering[J]. Journal of Advanced Ceramics, 2019, 8: 148-152.
[6]. Jiang S, Shao L, Fan T W, et al. Elastic and thermodynamic properties of high entropy carbide (HfTaZrTi) C and (HfTaZrNb) C from ab initio investigation[J]. Ceramics International, 2020, 46(10): 15104-15112.
[7]. Botros, M., & Janek, J. (2022). Embracing disorder in solid-state batteries. Science, 378(6626), 1273-1274.
[8]. Jung, S. K., Gwon, H., Kim, H., Yoon, G., Shin, D., Hong, J., ... & Kim, J. S. (2022). Unlocking the hidden chemical space in cubic-phase garnet solid electrolyte for efficient quasi-all-solid-state lithium batteries. Nature Communications, 13(1), 7638.
[9]. J. Zhu, X. Li, C. Wu, J. Gao, H. Xu, Y. Li, X. Guo, H. Li, W. Zhou, A multilayer ceramic electrolyte for all-solid-state Li batteries, Angew. Chem. Int. Ed. Engl. 60 (2021) 3781–3790.
[10]. Miara, L. J., Richards, W. D., Wang, Y. E., & Ceder, G. (2015). First-principles studies on cation dopants and electrolyte| cathode interphases for lithium garnets. Chemistry of Materials, 27(11), 4040-4047.
[11]. Wang, C., Ping, W., Bai, Q., Cui, H., Hensleigh, R., Wang, R., ... & Hu, L. (2020). A general method to synthesize and sinter bulk ceramics in seconds. Science, 368(6490), 521-526.
Cite this article
Mei,X. (2023). Advances in high entropy doping of Li7La3Zr2O12 (LLZO) garnet solid electrolyte: Properties and feasibility analysis. Applied and Computational Engineering,23,102-108.
Data availability
The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.
Disclaimer/Publisher's Note
The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of EWA Publishing and/or the editor(s). EWA Publishing and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content.
About volume
Volume title: Proceedings of the 2023 International Conference on Functional Materials and Civil Engineering
© 2024 by the author(s). Licensee EWA Publishing, Oxford, UK. This article is an open access article distributed under the terms and
conditions of the Creative Commons Attribution (CC BY) license. Authors who
publish this series agree to the following terms:
1. Authors retain copyright and grant the series right of first publication with the work simultaneously licensed under a Creative Commons
Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this
series.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the series's published
version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial
publication in this series.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and
during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See
Open access policy for details).