fig3
![Unraveling the doping mechanisms in lithium iron phosphate](https://image.oaes.cc/baf3d9b8-9ca9-4739-a1e3-e13bcc8a6c70/4787.fig.3.jpg)
Figure 3. Screening for smaller dopant formation energy of TM-LFP. A: Formation energies of LFP and TM-LFP. The white and light-yellow areas correspond to the elements with endothermic and exothermic formation, respectively. B: Classification of formation energy of TM-LFP compared with LFP, where the darker the color, the larger the formation energy. LFP: LiFePO4; TM-LFP: Transition metal-doped LFP.