ELETTRA PROPOSAL DESCRIPTION Proposal number: 20130225 Title: Structural and electronic studies of metal hexacyanoferrates-based cathodes for Li and Na rechargeable batteries Proposer: Marco GIORGETTI Beamline(s): XAFS Required shifts: 15 Objectives: XAS is applied for the study of both charge and local geometry of Fe, Ni and Cu local sites in a newly prepared cathode for lithium and sodium batteries. The XAS technique permits to check the local atomic structure and charge associated to the metals in: i) a series of cathode materials prepared by different synthetic approaches, and ii) a series of electrodes in different state of discharg