D50 (um) | 5.38 |
---|---|
BET (m2/g) | 2.12 |
Tap density (g/cm3) | 1.08 |
Capacity (mAh/g) | 1633.5 |
Voltage Cut-off (V) | 0.005~2.0v |
Test Condition | 25℃ 0.1C 0.005~2.0V |
1st Cycle Efficiency (%) | 78.6 |
Carbon-coated SiO Anode, High Capacity
Carbon-coated SiO Anode
Si monoxide (SiO) and its suboxides (SiOx) are a group of promising anode materials for lithium-ion batteries which 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 the year 2019, it is believed that the SiOx-based anode has been commercialized in cylindrical cells which are used in electric vehicles.
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