Li disc (Sigma Aldrich) as counter and reference electrode, while full coin and pouch cells utilised LMFP as cathode and graphite as anode. 3E cells ("PAT-cell") were purchased from EL-cell. In coin and pouch cells, a Celgard 2325 separator was utilised while a glass fibre separator was used for 3E cells. Both coin and 3E cell assembly was carried out in a glovebox under Argon atmosphere, applying 100 µl of electrolyte (1 M LiPF6 in 3:7 EC:EMC, + 2 % Vinylene Carbonate). Single-layer pouch cell assembly, involving the stacking of cathode and anode with separator and placing in a laminated Al pouch, was carried out in a dry room at a dewpoint of approx. -50 o C, utilising an electrolyte quantity of 1 g.