Re: CCB news...highlights how good ZEN is.
in response to
by
posted on
Aug 27, 2014 10:26PM
Hydrothermal Graphite Deposit Ammenable for Commercial Graphene Applications
Several differences that I can see from the CCB data and the ZEN data.
1. BET surface area
Synthetic 2.77 to 19.38 m2/g
Albany (ZEN) app. 8 m2/g
Millar (CCB) 2.227 m2/g
That means that ZEN graphite has almost 4 times the surface area as measured by BET and it is much more comparable to synthetic graphite.
2. Density
Syntheticsup to 2.28 g/cc (Timcal spec sheet)
ZEN2.242 g/cc
CCB2.12 g/cc
The higher the density the better the graphite and ZEN is 98% of the maximum value for synthetic whereas CCB is only 93% as dense as synthetic.
3. Resistivity
Synthetic 0.002 ohm x centimeters
Graphite all sources 0.003 to 0.060 ohm centimeters
ZEN0.0034 ohm x centimeters
CCBnot disclosed
The lower the resistivity the better the electrical properties which is important for many graphite uses including batteries and refractories.
4. SEM micrographs
In my opinion (for what its worth) the ZEN graphite demonstrates much cleaner lines and better definition to the edges, perfect almost. This compares to rounded edges on the CCB material and much less definition. ZEN even looks cleaner than synthetic.
5. Particle Size distribution
ZENMean 18 microns
Battery grade synthetic10 to 40 microns
CCBNot disclosed
In my books the CCB press release just serves to show how much better ZEN graphite is than anyone elses, including CCB.
TP