title: 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 nanoparticles can be directly recovered from the mixture with high efficiency and high purity for making lithium ion battery anode. The work here demonstrated a relatively low cost approach to turn wafer slicing wastes into much higher value-added materials for energy applications, which also helps to increase the sustainability of semiconductor material and device manufacturing.
authors.affiliation: 1] Rare Metals Research Center, Korea Institute of Geoscience &Mineral Resources, Deajeon. 305-350, Korea [2] Department of Nanomaterials Science and Engineering, University of Science &Technology, Deajeon. 305-350, Korea.
authors.forename: Hee Dong
authors.initials: HD
authors.lastname: Jang
authors.affiliation: 1] Rare Metals Research Center, Korea Institute of Geoscience &Mineral Resources, Deajeon. 305-350, Korea [2] Department of Nanomaterials Science and Engineering, University of Science &Technology, Deajeon. 305-350, Korea.
authors.forename: Hyekyoung
authors.initials: H
authors.lastname: Kim
authors.affiliation: 1] Rare Metals Research Center, Korea Institute of Geoscience &Mineral Resources, Deajeon. 305-350, Korea [2] Department of Nanomaterials Science and Engineering, University of Science &Technology, Deajeon. 305-350, Korea.
authors.forename: Hankwon
authors.initials: H
authors.lastname: Chang
authors.affiliation: 1] Rare Metals Research Center, Korea Institute of Geoscience &Mineral Resources, Deajeon. 305-350, Korea [2] Department of Nanomaterials Science and Engineering, University of Science &Technology, Deajeon. 305-350, Korea.
authors.forename: Jiwoong
authors.initials: J
authors.lastname: Kim
authors.affiliation: Rare Metals Research Center, Korea Institute of Geoscience &Mineral Resources, Deajeon. 305-350, Korea.
authors.forename: Kee Min
authors.initials: KM
authors.lastname: Roh
authors.affiliation: Rare Metals Research Center, Korea Institute of Geoscience &Mineral Resources, Deajeon. 305-350, Korea.
authors.forename: Ji-Hyuk
authors.initials: JH
authors.lastname: Choi
authors.affiliation: R&D Center for Valuable Recycling, Korea Institute of Geoscience and Mineral Resources, Daejeon. 305-350, Korea.
authors.forename: Bong-Gyoo
authors.initials: BG
authors.lastname: Cho
authors.affiliation: Department of Energy Engineering, Hanyang University, Seoul. 133-791, Korea.
authors.forename: Eunjun
authors.initials: E
authors.lastname: Park
authors.affiliation: Department of Energy Engineering, Hanyang University, Seoul. 133-791, Korea.
authors.forename: Hansu
authors.initials: H
authors.lastname: Kim
authors.affiliation: School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
authors.forename: Jiayan
authors.initials: J
authors.lastname: Luo
authors.affiliation: Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA.
authors.forename: Jiaxing
authors.initials: J
authors.lastname: Huang
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