Si monoxide (SiO) and its suboxides (SiOx) are a group of promising anode materials for lithium-ion batteries that have attracted special attention recently due to their high specific capacity and improved cycling performance compared with nano silicon-based anode. In the material, nanosized (or amorphous) silicon particles are embedded in the oxide matrix, which maintains the structure and also buffers the volume expansion during lithium insertion/removal. In 2019, it is believed that the SiOx-based anode was commercialized in cylindrical cells that are used in electric vehicles.
The sample is a SiO sample coated by carbon with the CVD method. The capacity reaches more than 1550mAh/g.
Specifications
| Item | Internal Control | Typical Value |
|---|---|---|
| D50 (um) | 6.00±2 | 5.01 |
| BET (m2/g) | <3.00 | 1.78 |
| Tap density (g/cm3) | >0.85 | 1.10 |
| Capacity (mAh/g) | >1550.0 | 1630.0 |
| Voltage Cut-off (V) | 0.005~2.0V | / |
| Test Condition | 25 degrees C, 0.1C, 0.005~2.0V | / |
| 1st Cycle Efficiency (%) | >75.0 | 78 |
We have some other commercially available SiO-C anode samples with a lower capacity (420mAh/g ~650mAh/g) but better cycling performance. Please contact for detail.
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