X Ray Absorption Spectroscopy Structural studies on high voltage cathode materials of the Li[Li0.2Mn0.6-0.5xNi0.2-0.5xCox]O2 family

XAS is applied for the study of the local geometry of Co, Ni, and Mn sites in a new high voltage cathode for lithium batteries. The XAS technique permits to check the local atomic structure and charge associated to the metals in: i) a series of low content analogs (where x is equal or less than 0.13); ii) a series of de-lithiated electrodes obtained during the first cycle