Table 2 A summary of electrochemical performances for metal batteries using 2D materials on separator engineering for safe metal anode
From: Two-dimensional materials for high density, safe and robust metal anodes batteries
Material composite | Type of membrane | Coating method | Type of anode | Electrochemical performance |
|---|---|---|---|---|
Nitrogen and sulfur codoped graphene (NSG) [142] | PE | Vacuum filtration | Li metal | Couple with LiNi0.8Co0.15Al0.05O2, 200 mAh g−1 at 1st cycle and 0.5C, 85% retention after 240 cycles |
Oxygen and nitrogen doped vertical graphene [143] | Glass fiber | Plasma enhanced chemical vapor deposition (PECVD) + air plasma treatment | Zn metal | Couple with V2O5, 75% Capacity retention after 1000 cycles |
FNC [146] | PP (Celgard 3501) | Slurry coating | Li metal | Couple with LiFePO4, 80% retention after 800 cycles, Coulombic efficiency > 97% |
N–Ti3C2/C [149] | PP (Celgard 2400) | Slurry coating | Li metal | Couple with sulfur cathode, 6.3 mAh cm−2 with sulfur loading over 10 mg cm−2 |
MXene@NiO [123] | Cellulose fiber | Drop casting | Zn metal | Couple with V2O5, 275.9 mAh g−1 at 0.1 A g−1 |
Graphitic carbon nitride (g-C3N4) [148] | Glass fiber | Slurry coating | Zn metal | Â |
BN nanosheets [151] | PP/PE/PP (Celgard 2325) | Slurry coating | Li metal | Coulombic efficiency: 92% after 100 cycles at 0.5 mA cm−2 |
BN powder [152] | PP | Slurry coating via doctor blading | Li metal | Couple with sulfur cathode, 1036.4 mAh g−1 at 1st cycle and 0.5C |
PVH-LaO//PVH-BN [153] | PP/PE/PP (Celgard 2325) | Solution coating | Li metal | Couple with LFP, 158 mAh g−1 at 0.5 C after 100 cycles |