title: Rapid, in Situ Synthesis of High Capacity Battery Anodes through High Temperature Radiation-Based Thermal Shock.
abstract: High capacity battery electrodes require nanosized components to avoid pulverization associated with volume changes during the charge-discharge process. Additionally, these nanosized electrodes need an electronically conductive matrix to facilitate electron transport. Here, for the first time, we report a rapid thermal shock process using high-temperature radiative heating to fabricate a conductive reduced graphene oxide (RGO) composite with silicon nanoparticles. Silicon (Si) particles on the order of a few micrometers are initially embedded in the RGO host and in situ transformed into 10-15 nm nanoparticles in less than a minute through radiative heating. The as-prepared composites of ultrafine Si nanoparticles embedded in a RGO matrix show great performance as a Li-ion battery (LIB) anode. The in situ nanoparticle synthesis method can also be adopted for other high capacity battery anode materials including tin (Sn) and aluminum (Al). This method for synthesizing high capacity anodes in a RGO matrix can be envisioned for roll-to-roll nanomanufacturing due to the ease and scalability of this high-temperature radiative heating process.
authors: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors: Yanan
authors: Y
authors: Chen
authors: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors: Yiju
authors: Y
authors: Li
authors: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors: Yanbin
authors: Y
authors: Wang
authors: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors: Kun
authors: K
authors: Fu
authors: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors: Valencia A
authors: VA
authors: Danner
authors: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors: Jiaqi
authors: J
authors: Dai
authors: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors: Steven D
authors: SD
authors: Lacey
authors: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors: Yonggang
authors: Y
authors: Yao
authors: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors: Liangbing
authors: L
authors: Hu
keywords: Li-ion batteries; Rapid manufacturing; high-capacity anodes; reduced graphene oxide; roll-to-roll