fig2
Figure 2. Mechanical properties and microstructure of dry LFP cathodes. SEM images of S-LFP cathode film, (A) cross-sectional view and (B) top view; SEM images of L-LFP cathode film; (C) cross-sectional view and (D) top view; (E) UTM measurement and (F) mechanical properties of dry LFP cathode films; (G) Schematic illustration of PTFE fiber network within dry LFP cathodes. LFP: LiFePO4; S-LFP: small-sized LFP; L-LFP: large-sized LFP; SEM: scanning electron microscopy; UTM: universal testing machine.








