The thesis focuses on the development of secure and high-performance lithium-ion batteries. The first part of the research will concentrate on understanding the phase change mechanisms of the NMC cathode, examining parameters such as lithiation rate, temperature, and crystal structure.
The thesis will stand out by evaluating various strategies, including synthesis, crystal morphology, coating, and doping, to identify the most promising approach. The advantages of this approach lie in access to sophisticated characterization tools such as the ESRF, enabling a detailed analysis, and the ability to test new materials in real conditions through the creation of high-capacity cells. By leveraging these strengths, the thesis aims to significantly contribute to the development of lithium-ion batteries that combine high performance with increased safety.