About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage 2025
|
Presentation Title |
Dimensionality Control of Li Transport by MOFs Based Quasi-Solid to Solid Electrolyte (Q-SSEs) |
Author(s) |
Manuel Salado, R. Fernández de Luis, T. H. Smith, Senentxu Lanceros Mendez, M. Forsyth |
On-Site Speaker (Planned) |
Manuel Salado |
Abstract Scope |
As complex systems composed of multiple materials with diverse chemical compositions, battery interfaces are essential for determining the performance, durability and safety. This work, set out to study the incorporation of lithium bis(fluorosulfonyl)amide (LiFSI) doped 1-ethyl-3- methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIm][TFSI]) ionic liquid into an archetype Ti-based Metal Organic Framework (MOF) ((Ti) MIL125-NH2) to create a solid to quasi-solid, and how it affects not only ionic transport but also the structural properties of the IL/MOF electrolyte. Remarkably high ionic conductivity values as well as a lithium transference number were achieved. Electrochemical characterization revealed reversible plating-stripping of lithium and lower overpotential after 750 h at 50 ºC. Additionally, a proof-of-concept solid state battery was fabricated resulting in a discharge capacity of 160 mAh·g-1 after 50 cycles. This work presents a suitable strategy to dendrite suppression capability, allowing its implementation as interface modifiers in next-generation solid-state batteries. |
Proceedings Inclusion? |
Planned: |