High Recharge and Discharge Spherical Graphite

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Loading Port:
Qingdao
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TT or LC
Min Order Qty:
-
Supply Capability:
100ton kg/month

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Product Description:

1.Brief introduction

Also called Potato Graphite or Spherical Graphite is ideal cathode materials for lithium ion batteries.

2.Main Feature

Using high quality natural flake graphite as raw materials, our company adopts a series of unique shaping, classification and purification technologies to produce high quality spherical graphite.

Our products are well crystallized, high-roundness and of stable quality, its first discharge capability is up to 360mAh/g, and the recharge efficiency is up to 80 percent.

Property: strong chemical stability, high charging/discharging capacity, long circle life.

3. Specifications

mAh/g

Charge  Capacity

mAh/g

Dischaarge Capacity

%

Fist  C/DC  Rate

cycles

360

330

90

800

 

(D50µM)

Average  Size

(g/cm3)

Tap  Density

(m2/g)

SSA(BET)

(ppm)

Water

(%)

Dust

8-32

1.0

3.5-7.5

<200

<0.8

4. FAQ of Spherical Graphite

Q:What kind of payment terms can you accept?

 A: We can accept 30% prepayment,70% payment before shippment . LC is also accepted.

 

5.

 



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Q:Antistatic concrete with graphite powder and conductive carbon black, which effect is good?More specific. I don't quite understand
The better conductivity is graphitized carbon, the higher the degree of graphitization, the better the conductivity. In general, the conductivity of graphite is better than that of black carbon (both of which are of high purity, if not of high purity).
Q:How to identify iron powder and graphite powder in a simple way?
Can also take the first touch, using magnets to attract or drop method with acid identification of three substances. [a] analytical method (first touch after magnet): touch the two kinds of powder by hand, are oily powder graphite powder, and then take the other two kinds of powder with a magnet, the magnet can be as for iron, can not be sucked up into powder;
Q:For thermal grease skills, the more detailed the better
But this is not possible, the metal lid heat sink and CPU looks smooth, but with a magnifying glass, you can see many holes in metal surface concave stripes and irregular tunnel, lead contact surface with many gaps, these gaps are impeding heat dissipation, thermal grease is liquid, can fill the gaps. Improved radiating surface contact, the heat dissipating effect than when there is no good thermal grease. But if the thermal grease is too thick, it will become a film on the contact surface of the middle, but hindered the direct contact of metal, worse than not coated with thermal grease.
Q:Distinguish iron powder and graphite powder by chemical method
This problem is very simple, the use of chemical methods to distinguish: there are many ways to give me introduce you to some here, one plus HCl for Fe+HCl=FeCl2+H2, C and HCl reaction, 2: they were put into CuSO4 solution, can replace the red metal iron, whereas C
Q:Why is there a range of electrode powder powder resistivity? The reasons for the high and low are not good.
Read millivolt values and sample height, calculated according to the formula P =UA/IL type resistivity. The resistivity of the conductor is in P, Omega - M; L for voltage measurement distance between two probes for m; A for the conductor cross-sectional area, m2; U, the voltage between two probes for the determination of voltage V; I the strength of the current flowing through the conductors, the resistivity of A. graphite is (8 ~ 13) * 10-6 (/m), high - low note inside magazines. For reference only!
Q:Know how the colloidal graphite powder comes in
There are two ways to make colloidal graphite: (1) mechanical method. Natural graphite is crushed and treated with hydrochloric acid and hydrofluoric acid to remove impurities. Added to the aqueous solution of tannic acid, which is repeatedly inverted into paste. Colloidal graphite can be obtained by adding a certain proportion of water and ammonia, and then by ultrasonic treatment to further reduce the particle size. (2) chemical method. After being purified and crushed, the natural graphite is added with concentrated nitric acid and concentrated sulfuric acid and water at 90 DEG C, and then obtained by cleaning, drying, adding water, ethanol, acetone and other dispersing agents to obtain colloidal graphite. Add stabilizer such as sodium oleate, sulfate and so on, so that graphite particles do not agglomerate. Ammonia transfers the graphite colloid to the gum solution and regulates the pH value.
Q:How to measure the iron content in graphite powder?
Excessive amounts of dilute sulphuric acid can be used to measure the amount of gas produced, and then the amount of iron is calculated according to the amount of gas.
Q:Does graphite allow lubrication of rusted doors?
Sure。 When we were young, the teacher reminded us that we could use the pencil core to scrape the end and put it into the keyhole to lubricate it.
Q:Sunshine door lock winter treatment
Always keep the lubricant in the locking part of the lock so as to keep the transmission smooth and prolong the service life. It is recommended to check it for half a year or one year, and check whether the fastening screws are loose or not, to ensure the fastening.
Q:Graphite powder screening process, because with static holding together, resulting in vibration screen plugging network how to solve?
Electrostatic earthing or electrostatic eliminator. In fact, there is a certain conductive graphite powder is very fine, but so long as the electrostatic would slightly have great effect, give you two ways, one is the good grounding conductor can be static vibration sieve, go through a grounding wire guide;

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