Table 1 Effects of complexing agents on Fe2+ and the characteristics of LiFePO4/C synthesized by sol-gel method
Complexing agent | Stability constant (logβ) | Discharge specific capacity (mAh g-1) | Tap density (g cm-3) | Carbon content (wt.%) |
---|---|---|---|---|
Acetic acid | 8.3 | 161.08 | 1.37 | 2.3 |
Ethanediol | 9.67 | 133.53 | 1.16 | 4.8 |
Oxalic acid | 5.22 | 143.04 | 1.23 | 3.2 |
Ethylenediamine | 9.70 | 126.73 | 1.12 | 5.1 |