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 selected as the anode material has been increasing in popularity after it was proven faster in recharge time for EV batteries. Sieving silicon for batteries 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 technology, the machine will quickly blind. This will lead to inconsistent material and processing issues downstream.