Ultrafast crystallization of high-entropy NaSICON superionic conductor for all-solid-state batteries

• Grant number: 23/18168-7
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: May 01, 2024
• End date: April 30, 2025
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Ana Candida Martins Rodrigues
• Grantee: João Vitor Campos
• Supervisor: Vincenzo M. Sglavo
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Institution abroad: Universitá degli Studi di Trento, Italy
• Associated to the scholarship: 21/06509-9 - Ionic conductor glass-ceramics sintering with concurrent crystallisation using flash sintering, BP.PD

Abstract

Solid-state batteries (SSBs) have emerged as promising candidates for next-generation energy storage due to their high energy density, enhanced safety, and potential for fast charging. This research project aims at developing and characterizing glass-ceramic materials as potential electrolytes and electrodes for SSBs. The study explores new compositions based on high-entropy oxide (HEO) of the NaSICON-structured materials group, prepared with innovative methods based on the glass-ceramics route. Three different crystallization methods will be considered, namely, Conventional Crystallization (CC), Flash Crystallization (FC) and Ultra-fast High-temperature Crystallization (UHC), to tailor the crystalline (micro)structure of the glass-ceramics and maximize their ionic conductivity. The resulting materials will be extensively characterized in density, crystallinity, crystalline and residual amorphous phases, microstructure and electrical properties. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersion X-ray spectroscopy (EDXS), impedance spectroscopy (IS), differential scanning calorimetry (DSC), dilatometry, Fourier transformed infrared (FT-IR) and Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) will be fundamentally used for the characterization. The obtained results will provide insights into the effect of composition and crystallization procedure on the properties of glass-ceramics for SSBs application. This research will contribute to developing advanced materials for high-performance SSBs, thus accelerating the progress toward a sustainable and efficient energy storage solution.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CAMPOS, JOAO, V; LAVAGNINI, ISABELA R.; DE SOUZA, THALIA D.; SILVA, LAIS D.; JESUS, LILIAN M.; BRADTMUELLER, HENRIK; ZANOTTO, EDGAR D.; RODRIGUES, ANA C. M.. Power ramp flash crystallization of a lithium silicate-based glass for dental applications: Structural insights and mechanical properties. ACTA MATERIALIA, v. 284, p. 13-pg., 2024-12-10. (23/18168-7, 22/13532-0, 13/07793-6, 21/06509-9, 19/26399-3, 23/18171-8)

FÁBULO RIBEIRO MONTEIRO; JOÃO VITOR CAMPOS; GUSTAVO CÉSAR DACANAL; LILIAN MENEZES JESUS; ADILSON LUIZ CHINELATTO; ELIRIA MARIA DE JESUS AGNOLON PALLONE; RAFAEL VIEIRA DE SOUSA. Optimizing flash sintering outcomes using response surface methodology. Cerâmica, v. 71, 2025-02-28. (19/14677-9, 15/07319-8, 18/19370-6, 21/06509-9, 23/18168-7)