CNTs Conductive Additive for Lithium ion battery

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CNTs Conductive Additive for Lithium Ion Battery

CNTs Conductive Additive is made specially for improving lithium ion battery cycle performance.

CNTs is one of excellent electric conductive nanofibers, it can form conductive network easily in Li-ion battery electrodes, that can also prevent the electrode material from destroying caused by expanding and shrinking of electrode materials during charging and discharging. Thus, the capacity of battery does not decline.

The pure CNTs can’t be dispersed easily, because the CNTs are entangled with each other heavily.

CNTs Conductive Additive is a composite. It is composed of CNTs and a kind of grain electric conductive additives. Adding grain conductive additive to CNTs, the entangled CNTs is separated. As the result, CNTs can be dispersed easily in battery electrode materials. In addition, because of synergetic effect between CNTs and grain materials, the discharge capacity and cycle life of Li-ion battery can be improved remarkably. Further more, after adding CNTs conductive additive, the tap density of battery electrode coatings can increase 10%.

Using CNTs Conductive Additive, the cycle life of 700mAh053048 Li-ion battery can prolong one more time, the details are as follows.

The test result of 700mAh053048 Li-ion battery, of which cathode

made by LiCoO₂ or LiFePO₄, anode made by artificial graphite

		LiCoO₂		LiFePO₄
Tap Density（g/cm³）		SP+KS-6	Multi-CNTs	SP+KS-6	Multi-CNTs
Tap Density（g/cm³）		3.6	3.8	2.1	2.4
Cycle Life(1C/1C)	500cycles	75.3%	91.2％	89．2％	95．8％
Cycle Life(1C/1C)	1000cycles		84.0％	83．1％	92．4％

2．Product Specification

Specification of CNTs Conductive Additive
Appearance	Black Powder
Tube Diameter	50~80nm
Tube Length	10～15um
Surface Area	80m²/g
PH Value	9
Usage	The production can be used on anode and cathode of Li-ion battery, with the system of both oil and water. When using, dispersing the additive first, and then adding materials else. The appropriate quantity of additive is 2～3wt.% on anode and 1～2wt.% on cathode.

3．Present Output

1.5～2.0 ton/month

4．Price

100＄/kg