Silicon Based Composite Materials S650 Si-based graphite for Lithium Battery Anode materials
As a new anode energy material, Si - based anode material has ultra-high theoretical specific capacity and low lithium removal potential (< 0.5v), and the voltage platform of silicon is slightly higher than that of graphite, so it is difficult to cause lithium dissection on the surface during charging, and the safety performance is better.
The product is characterized with high capacity(≥400Ah/g), high first efficiency(≥85%), good cycle performance, low volume expansion and realization the SNNC and non crystalline of Si. It is widely applied for 3C digital, power tools, electric vehicles (EV/HEV/PHEV).
FEATURES:
High capacity
High first efficiency
Good cycle performance
Low volume expansion
Si based material is successfully developed by introducing all these technologies and melting these technologies together. The product is characterized with low volume expansion and long cycling life by controlling and realization the nanolization and non crystalinity
Silicon Based Composite Materials S650 Si-based graphite for Lithium Battery Anode materials
| Test Item |
Unit |
Standard |
Typical Value |
Test equipments and method |
| D50 |
um |
8.0~14.0 |
12.6 |
Mastersize 2000 Hydro 2000MU(A);ultrasound:3min;refractive index:2.42 absorptivity:1; dispersants:water;Refractive index:1.330 |
| Actual density |
g/cm3 |
≥1.70 |
2.08 |
n-butyl alcohol, |
| Ash content |
% |
≤0.20 |
0.02 |
sample:2g;muffle 800ºC 5-6 hours to constant weight |
| Tap density |
g/cm3 |
≥0.80 |
0.94 |
FZS4-4B;Vibration frequency:250 times/min;Amplitude:3mm;
Vibration:3000 times;Measuring Cylinder:25ml; |
| SSA |
m2/g |
1.0~4.0 |
1.7 |
NOVA-2000e;adsorbates:High pure N2;
BET pipe:9mm with balls; |
| *First discharge capacity |
mAh/g |
≥240.0 |
247.1 |
Half cell test/PVDF+SP |
| *First coulombic efficiency |
% |
≥80.0 |
85.0 |
Half cell test/PVDF+SP |
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Silicon Based Composite Materials S650 Si-based graphite for Lithium Battery Anode materials
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