Table 1 Electrochemical properties of LFP films annealed at various temperatures.
400 °C | 500 °C | 600 °C | 700 °C | |
---|---|---|---|---|
Discharge capacity of the 1st cycle (µAh cm−2 µm−1) | 8 | 36 | 29 | 32 |
Discharge capacity of the 50th cycle (µAh cm−2 µm−1) | 2 | 28 | 8 | 24 |
Discharge capacity of the 100th cycle (µAh cm−2 µm−1) | — | 18 | — | 22 |
Capacity retention (%) 1st–50th cycle | 25 | 78 | 29 | 75 |
Capacity retention (%) 1st–100th cycle | — | 50 | — | 70 |