|
 |
 |
 |
Properties and Applications |
|
|
|
|
|
|
|
|
JFE Chemical’s graphite powder, in the form of Mesophase Microsphere (spherical crystal) or bulk mesophase, is generated from coal tar using our unique technology. The product consists of carbon microparticles that form a highly crystalline graphite structure.
The product has been well recognized for its high capacity and performance, meeting the needs of this age when downsizing, weight reduction and longer life of Li-ion secondary batteries are increasingly demanded for computers and mobile phones. We are also developing products for secondary Li-ion batteries for automobiles and electric power storage, which are expected to be in greater demand in years to come, and for applications other than batteries such as carbon and resin composite materials.
| Features |
 |
Well growth graphite structure |
 |
Fine spherical graphite powder- average particle diameter of several to several tens of micrometers |
|
Large packing density |
|
Excellent electric and thermal conductivity |
|
|
|
|
|
|
|
|
|
Properties and features as a Negative electrode of rechargeable Li-ion battery |
|
|
|
|
|
|
|
|
| Graphite types |
True density
gravity
(g/cm3) |
Average particle
diameter
(µm) |
Discharge-Capacity
(mAh/g) |
| Bulk Mesophase |
2.17-2.21 |
10-30 |
310-340 |
| Mesophase Microsphere |
2.21-2.25 |
10-30 |
330-360 |
|
|
|
|
Large reversible capacity and High charge-discharge efficiency |
|
Excellent safety and discharge load characteristics |
|
High electrode density |
|
|
|
|
|
|
|
Applications |
|
|
|
|
|
|
|
|
|
Negative electrodes of rechargeable Li-ion battery |
|
Filler for carbon and resin composite materials |
|
Other electric storage applications such as electric double layer capacitors |
|
|
|
|
|
|
|
|
|
|
