Table 1 Discharge capacity and capacity retention of pristine nb-Si and metal (Au, Cu)-coated nb-Si electrodes
From: CMOS-compatible metal-stabilized nanostructured Si as anodes for lithium-ion microbatteries
Sample | 1st (μAh cm-2) | 20th (μAh cm-2) | Capacity retention (%) |
|---|---|---|---|
Pristine nb-Si | 582.3 | 142.3 | 24.4 |
Au(20)-coated nb-Si | 705.3 | 389.0 | 55.2 |
Au(50)-coated nb-Si | 1,161.5 | 352.1 | 30.3 |
Cu(20)-coated nb-Si | 716.1 | 363.3 | 50.7 |
Cu(50)-coated nb-Si | 632.7 | 440.4 | 69.6 |