Nano-Silicon/Graphite (nSi/G) Coated Copper Foil as Anode Electrode (Disc, Sheet, Roll) for Li-Ion Battery, CLIBAEnSiG
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The nano-silicon/graphite composite powder coated on copper foil electrode (disc, sheet, roll) can be used as lithium-ion battery anode. The round disc shape with single-side coating is suitable for coin cell testing, while the rectangle sheet shape with single- or double-side coating is designed for single-layer or multiple-layer pouch cell testing. The roll shape with double-side coating is designed for cylindrical cell electrodes after slitting.
| Part Number | CLIBAEnSiG (C-LIB-AE-nSi/G) |
| Current collector | 9 um copper foil |
| Coating Material | Silicon nanoparticles/graphite composite |
| Coating Slurry Recipe | nSi/G : CMC : SBR : Super P = 93.0% : 2.0% : 2.5% : 2.5% |
| Electrode Dimension |
Round disc shape: D = 10-16 mm Rectangle sheet shape: Substrate (L240mm*W200mm); Coating: (L240 mm*175 mm, empty width of 12.5 mm at each side for tab welding) Roll shape: 10 m length |
| Package Size |
Round disk D16 mm (50 pcs/pack) Rectangle sheet with SS & DS coating (5 pcs/pack) Roll shape: 1 roll |
| Loading Mass Density | 5.0 mg/cm2 (single side); 10.0 mg/cm2 (double side) |
| Compaction Density | 1.2 g/cm3 (single side); 1.4 g/cm3 (double side) |
| First Discharging Capacity |
~425 mAh/g (testing voltage: 0.005-2.0 V) |
| First Columbic Efficiency | 91.4% (Recommended Electrolyte: 1M LiPF6 in ECEC:DMC:EMC=1:1:1 with 1.0%VC, 1-3 cycles of formation should be done before real testing) |
Notes: (1) Please store the electrode sheets in a dry area (glovebox is preferred); (2) The battery electrode sheets are highly recommended to be dried at 80-100°C in a vacuum oven for 6-12 h before use.
References:
- M, Wetjen, et al. Morphological Changes of Silicon Nanoparticles and the Influence of Cutoff Potentials in Silicon-Graphite Electrodes, J. Electrochem. Soc., 2018, 165 A1503.
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S. Chae, et al. Integration of Graphite and Silicon Anodes for the Commercialization of High-Energy Lithium-Ion Batteries, Angew Chem Int Ed, 2020, 59, 110-135.
