Nanocomposite Designs for Enhanced Ion Conductivity in Solid-State Battery Electrolytes
Keywords:
Nanocomposite electrolyte, Solid-state battery, Ionic conductivity, Polymer-ceramic interface, Lithium-ion transportAbstract
This study aims to analyze nanocomposite designs used to enhance ionic conductivity in solid-state battery electrolytes, with a focus on the relationship between material structure, interfacial behavior, and ion transport mechanisms. The study uses a qualitative case study approach based on a systematic literature review. Data were collected through documentation of academic articles published between 2020 and 2025 from major scientific databases, including ScienceDirect, ACS Publications, Wiley Online Library, SpringerLink, MDPI, RSC Publishing, IOPscience, and Google Scholar. The selected documents were analyzed using thematic analysis. The findings reveal four main themes: polymer-ceramic synergy, filler morphology and dispersion, interface-controlled ion transport, and the balance between ionic conductivity, mechanical stability, electrochemical performance, and scalability. The results show that improved ionic conductivity does not depend only on filler addition, but on the alignment between nanofiller type, matrix compatibility, interfacial chemistry, and fabrication method. This study contributes to a deeper understanding of solid-state electrolyte design by positioning ionic conductivity as a structural and interfacial phenomenon. The findings imply that future battery electrolyte development should integrate conductivity, safety, stability, durability, and material feasibility. Further research should investigate polymer-ceramic interfaces through advanced characterization and explore sustainable nanofiller sources for scalable solid-state battery applications.
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