Work

Lithiation of Rutile TiO2-Coated Si NWs Observed by in Situ TEM

Year: 2015

Type: article

Abstract: Lithiation of rutile TiO2 coated Si NWs was performed inside a transmission electron microscope. TiO2 coatings with sufficiently large coating thickness-to-NW diameter ratio induce segmented lithiation of a Si NW that reduces radial but promotes axial Li ion migration during transformation of Si to Li15Si4.

Source: Chemistry of Materials

DOI: 10.1021/acs.chemmater.5b02565

Authors: Sung Joo Kim, Alireza Kargar, Deli Wang, George W. Graham, Xiaoqing Pan

Institutions: University of California, Irvine, University of Michigan, University of California San Diego

Language: English

Topic: Advancements in Battery Materials

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, U.S. Department of Energy, Division of Materials Research, Basic Energy Sciences

Awards: MRI: Acquisition of a Monochromated, Aberration-Corrected, Ultra High Resolution Transmission Electron Microscope for the Univ. of Michigan's Electron Microbeam Analysis Laboratory, G1187550439, TAS::89 0227::TAS RECOVERY; NEW: RECOVERY ACT - EFRC: SOLAR ENERGY CONVERSION IN COMPLEX MATERIALS (SECCM) -- EFRC; PI - PETER GREEN, G886823526