Table 1 Discharge capacity and capacity retention of the pristine and composite samples at various current densities
Current density | 44 mA g−1 (mAh g−1) | 110 mA g−1 (mAh g−1) | 220 mA g−1 (mAh g−1) | 660 mA g−1 (mAh g−1) | 1320 mA g−1 (mAh g−1) | Retention rate (%) |
---|---|---|---|---|---|---|
Pristine | 229 | 194 | 170 | 134 | 101 | 44.1 |
Composite 0.5 | 260 | 228 | 203 | 164 | 123 | 47.3 |
Composite 2.0 | 287 | 253 | 225 | 179 | 151 | 52.6 |
Composite 5.0 | 276 | 243 | 215 | 174 | 145 | 52.5 |