Intercalation-based materials for FIBs possess volume changes which are significantly smaller than for conversion-based materials. Thus, it is important to access if the application of pressure can give similar impact on the cyclability than for conversion-based systems or if the impact on pressure is of smaller impact. For this, the cathode material La2Ni0.75Co0.25O4.08 (the structural behaviour on charging will be reported separately in ) was investigated in a cell La2Ni0.75Co0.25O4.08//La0.9Ba0.1F2.9//Pb-PbF2 at 170 °C at 450 MPa. The Pb-PbF2-C anode material was used in 10-fold excess with respect to the targeted capacity of the cathode material to minimize the influence of the anode material on the overall cell performance.