What is Silicon material used for? As many companies in the battery materials industry continue to search for process improvements, some companies have begun to replace graphite with silicon as the anode material. Silicon being used as the anode material has been used more widespread after it has been demonstrated that it can lead to faster recharge time for EV batteries. Sieving Silicon anode materials for the lithium ion batteries market is a process that must be done delicately in order to hit the target specification. Sieving silicon is not an easy process due to the fact that it is very lightweight and can be somewhat sticky in nature. The result is that if it is not sieved using the right equipment, the machine can quickly blind which will lead to major processing issues downstream.