Why conductive carbon black can be widely used in batteries

May 31, 2022

Conductive carbon black can be widely used in batteries for the following reasons:

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(1) Conductive carbon black has a unique branching form with a large number of conductive contact points.

(2) Superconducting carbon black has high electrical conductivity, and a small amount of addition can achieve high electrical conductivity.

(3) The usage amount is small, so that it can be filled with more active materials and increase the capacity of the battery.

(4) In the process of charging and discharging, the size of the battery resistance does not change with the continuous change of the battery volume, which increases the stability of the battery.

Microstructure of conductive carbon black Carbon black particles have a microcrystalline structure. In carbon black, the arrangement of carbon atoms is similar to graphite, forming a hexagonal plane. Usually 3 to 5 such layers form a microcrystal. In each graphite layer of the crystal, the arrangement of carbon atoms is ordered, and the arrangement of carbon atoms between adjacent layers is disordered, so it is also called quasi-graphite crystal.