High Voltage Li-Ion Battery Development
The understanding of electrolyte oxidative stability at high voltages through computation  and surface analysis of reaction products on the surfaces of both cathode and anode  indicates that very much improved electrolytes are urgently needed. The modification of the electronic structures of LNMO and LCP through substitutions [4,5] also improves capacity retention. This suggests that the stability of the high voltage cathodes can be improved.
The developments of improved electrolytes including the use of additives and fluorinated solvents for improved electrolyte stability and improved LNMO and LCP cathodes using substitution for stabilizing the cathodes will be reviewed. Recent advances coupling the improvements in high voltage cathode materials and electrolytes together for better performance will also be presented.
The authors wish to express their gratitude to the DOE ABR program for partial financial support.
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