Table 5.
Summary of characteristics and electrochemical performance of inorganic–organic coated separators
| Separator | Coating thickness (μm) | Porositya | Electrolyte contact angle | Electrolyte uptake | Ionic conductivity (mS cm–1) at RT | Cyclic performance | References |
|---|---|---|---|---|---|---|---|
| PE/Al2O3/DLSS | 6 | –b | 63.11° | 100% | 0.85 | 89.2% after 400 cycles at 0.5C 93.6% after 400 cycles at 0.5C | [117] |
| PP/GO-g-PAM | – | – | 0° | 430% | – | – | [118] |
| PE/Al2O3/PHC | 1.5 | 42.7% | – | 92% | 0.93 | 83.4% after 350 cycles at 1C (original) 87.6% after 350 cycles at 1C (modified) | [119] |
| PP/SiO2-PVA | – | 50.5% | 12.7° | 201% | 1.26 | 73.6% after 100 cycles at 0.5C (original) 91.0% after 100 cycles at 0.5C (modified) | [120] |
| PE/Al2O3/PDA | 4 | 35.3% | 0° | 70% | 0.71 | – | [121] |
| PE/PVDF-EC-A-SiO2 | 2 | – | 23.2° | – | 0.79 | 91.7% after 200 cycles at 0.5C (original) 95.7% after 200 cycles at 0.5C (modified) | [122] |
| PE/SiO2-PMMA | 5 | – | 6.1° | 90% | 1.08 | 94.6% after 100 cycles at 1C (original) 95.4% after 100 cycles at 1C (modified) | [123] |
| PE/ZrO2@PI | 4 | 54.28% | 0° | 164% | 0.68 | 75.1% after 200 cycles at 1C (original) 84.4% after 200 cycles at 1C (modified) | [124] |
| PE/SiO2-PZS | 1.5 | – | 13.4° | 155% | 1.04 | 80.0% after 100 cycles at 2C (original) 81.7% after 100 cycles at 2C (modified) | [125] |
| PP/PDA@AlN | 18 | – | 0° | – | 0.75 | – | [106] |
| PP/PDA/Gr-CMC | 21 | – | – | – | – | 58.0% after 1000 cycles at 1C (original) 93.3% after 1000 cycles at 1C (modified) | [126] |
| PVDF/PAN/Al2O3/NC | 5 | – | 0° (H2O) | 395% | 1.49 | 57.1% after 120 cycles at 0.5C (original) 65.9% after 120 cycles at 0.5C (modified) | [127] |
| PPS/SiO2/PVDF-HFP | – | – | – | 230% | 1.02 | – | [128] |
| PP/PI/Al2O3 | 2.5 | – | – | – | 0.95 | 100% after 350 cycles at 0.5C | [129] |
a “Porosity” is the entire separator’s, instead of the coating’s. b “–” means not mentioned