Hard Carbon Anode

Hard carbon anode material is the most preferred materials for commercialization of sodium-ion battery. Currently, it is mostly used in the energy storage industry.

ZDZN could provide one-top solution of hard carbon anode.

The raw materials for hard carbon are generally powdered carbon sources (such as coconut shells).

Process Description

First sintering using rotary kiln as coating and carbonizing material. The temperature reaches 500-800℃ (according to materia). Carbonize the material to remove excess resin substancess.

Secondary sintering using rotary kiln as coating and carbonizing material. The temperature reaches 1100-1600℃ (according to materia), so as to form secondary particles.

The purpose of acid washing is to remove impurities.

Carbonization kiln can reach 1000℃. After high temperature carbonization to form a core shell structure.

The purpose of the suction filter is to wash away the acidic liquid in the material and extract the moisture from the material.

Mixed crushing is the process that using airflow crusher and VC mixer to mix pitch.

The Final Product Handling System, which include feeding, screening, mixing, demagnetization, packagingsystem.After processing, it can ensure the stability of different batches of materials and remove magnetic substances and impurities.