Publications by authors named "Sebastien Martinet"
The compaction of cohesive granular materials is a common operation in powder-based manufacture of many products. However, the influence of particle-scale parameters such as bond strength on the packing structure and the general scaling of the compaction process are still poorly understood. We use particle dynamics simulations to analyze jammed configurations obtained by dynamic compaction of sticky particles under a fixed compressive pressure for a broad range of system parameter values.
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- Lithium-rich disordered rocksalt Li2TiS3 shows high discharge capacities over 350 mAh·g−1, making it a strong candidate for lithium-ion battery cathodes, but it suffers from rapid capacity loss during cycling.
- Researchers developed new selenium-substituted materials (Li2TiSexS3−x) through a wet mechanochemistry process to address the stability issues, which led to better cycling performance.
- X-ray diffraction confirmed that the substituted materials maintained a disordered rocksalt phase with expanded lattice parameters, resulting in improved reversible capacities and enhanced cycling stability compared to the original Li2TiS3.