The cation ordering, thermodynamics and diffusion kinetics of LiNi0.5Co0.2Mn0.3O2 (NCM-523) are studied using multi-scale funnel approach with vdW corrections.
Slow lithium diffusion kinetics of H1 phase during discharge determines the initial irreversible capacity loss of NCM-based materials. By controlling lithium diffusion rate in the discharge process, extra capacity is obtained in the materials.
A crosslinked ionomer binder was prepared and used in graphite anodes for Li-ion batteries. These binder-based anodes exhibit enhanced electrochemical performance due to the formation of hydrogen bonds and the release of conductive Li+.