Aerosol-assisted extraction of silicon nanoparticles from wafer slicing waste for lithium ion batteries.

ABSTRACT: A large amount of silicon debris particles are generated during the slicing of silicon ingots into thin wafers for the fabrication of integrated-circuit chips and solar cells. This results in a significant loss of valuable materials at about 40% of the mass of ingots. In addition, a hazardous silicon sludge waste is produced containing largely debris of silicon, and silicon carbide, which is a common cutting material on the slicing saw. Efforts in material recovery from the sludge and recycling have been largely directed towards converting silicon or silicon carbide into other chemicals. Here, we report an aerosol-assisted method to extract silicon nanoparticles from such sludge wastes and their use in lithium ion battery applications. Using an ultrasonic spray-drying method, silicon nanop

SUBMITTER: Jang HD 

PROVIDER: S-EPMC4377548 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature