Table 8.
The characteristics and electrochemical performance of in situ modified separators by organic modification materials
| Separator | Coating thickness | Porositya (%) | Coating mass fraction (%) | Contact angle | Electrolyte uptake | Ionic conductivity (mS cm–1) at RT | Cyclic performance | References |
|---|---|---|---|---|---|---|---|---|
| PE/PDA | –b | – | – | 39° (H2O) | 126% | 0.41 | – | [27] |
| PVDF/PDA | < 1 μm | 72.8 | 11.7 | 0° (electrolyte) | 254% | 1.40 | 98.8% after 100 cycles at 1C (original) 99.1% after 100 cycles at 1C (modified) | [187] |
| CP/PDA | – | – | – | 0° (electrolyte) | 320% | 1.29 | < 50% after 600 cycles at 5C (original) > 80% after 600 cycles at 5C (modified) | [188] |
| PP/TA | – | – | – | 72° (H2O) | 125% | 0.46 | 91% after 200 cycles at 1C | [189] |
| PP/PA | 800 nm | 41 | 1.8 | 54.7° (H2O) | 129% | 0.57 | 91.6% after 200 cycles at 1C (original) 97.7% after 200 cycles at 1C (modified) | [190] |
| PP/PEI + PDA | – | – | – | 46.3° (H2O) | 144% | 0.58 | 65% after 200 cycles at 0.2C (original) 80% after 200 cycles at 0.2C (modified) | [191] |
| PP/PEI + TA | – | 61.6 | – | 12.7° (electrolyte) | 140% | 0.95 | 69.3% after 200 cycles at 1C (original) 90.9% after 200 cycles at 1C (modified) | [192] |
| PP/PDA + PPFPA | – | – | – | 36.5° (electrolyte) | 209% | 0.83 | 52% after 700 cycles at 1C (original) 83% after 700 cycles at 1C (modified) | [193] |
| PP/NCMP | – | – | – | < 5° (electrolyte) | 116% | 1.10 | 40% after 400 cycles at 0.2C (original) 76% after 800 cycles at 0.2C (modified) | [135] |
| PP/Al-CPP | 800 nm | – | – | 22.6° (electrolyte) | 124% | 0.51 | 40% after 500 cycles at 1C (original) 61% after 500 cycles at 1C (modified) | [194] |
a “Porosity” is the entire separator’s, instead of the coating’s. b “–”means not mentioned