High-throughput development of Na2ZnSiO4-based hybrid electrolytes for sodium-ion batteries

Johari, Nur Sofina Mohamad and Jonderian, Antranik and Jia, Shipeng and Cozea, Victor and Yao, Elissa and Adnan, Syed Bahari Ramadzan Syed and Ahmad, Noraini and McCalla, Eric (2022) High-throughput development of Na2ZnSiO4-based hybrid electrolytes for sodium-ion batteries. Journal of Power Sources, 541. ISSN 0378-7753, DOI https://doi.org/10.1016/j.jpowsour.2022.231706.

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All-solid sodium-ion batteries are a very attractive technology for large scale applications such as grid storage. Herein, a hybrid solid-state electrolyte (HybSSE) made of halloysite clay-derived Na2ZnSiO4 ceramic and ionic liquid is developed by way of high-throughput methods. This involved making over 700 ceramics in order to both optimize the synthesis and screen 22 different substituents at 8 different substitution levels. This work yielded HybSSE with ionic conductivities as high as 0.453 mS cm(-1) at room temperature and 2.27 mS cm(-1) at 48 degrees C. This is an important improvement by a factor of nearly 20 over those reported previously. The improved ionic conductivities now make this HybSSE a viable candidate for quasi-solid Na-ion batteries. Further screening of electronic conductivity shows that dendrite growth within all tested HybSSEs is not expected to be a concern, nor is electrochemical instability on the cathode side. By contrast, all HybSSEs are found to be unstable against sodium metal, with the lowest decomposition potential being 0.8 V vs. Na. Thus, sodium metal anodes are not feasible here without the use of a buffering layer. The results therefore represent important improvements in this class of electrolytes and also guide future research and development.

Item Type: Article
Funders: Canada-ASEAN Scholarships, Department of Foreign Affairs, Trade and Development (DFATD) Canada through McGill University, Canada, Malaysia's Ministry of Education [Grant No; FRGS/1/2018/STG07/UM/02/9], Natural Sciences and Engineering Research Council of Canada (NSERC) CGIAR
Uncontrolled Keywords: Ceramic-ionic liquid hybrid electrolyte; High-throughput screening; Ionic and electronic conductivity; Electrochemical stability; Sodium-ion battery; Quasi-solid-state electrolyte
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 19 Oct 2023 03:43
Last Modified: 19 Oct 2023 03:43
URI: http://eprints.um.edu.my/id/eprint/41919

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