Studying the kinetics of crystalline silicon nanoparticle lithiation with in situ transmission electron microscopy

Matthew T McDowell; Ill Ryu; Seok Woo Lee; Chongmin Wang; William D Nix; Yi Cui

doi:10.1002/adma.201202744

Studying the kinetics of crystalline silicon nanoparticle lithiation with in situ transmission electron microscopy

Adv Mater. 2012 Nov 27;24(45):6034-41. doi: 10.1002/adma.201202744. Epub 2012 Sep 4.

Authors

Matthew T McDowell¹, Ill Ryu, Seok Woo Lee, Chongmin Wang, William D Nix, Yi Cui

Affiliation

¹ Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA.

PMID: 22945804
DOI: 10.1002/adma.201202744

Abstract

In situ transmission electron microscopy (TEM) is used to study the electrochemical lithiation of high-capacity crystalline Si nanoparticles for use in Li-ion battery anodes. The lithiation reaction slows down as it progresses into the particle interior, and analysis suggests that this behavior is due not to diffusion limitation but instead to the influence of mechanical stress on the driving force for reaction.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Crystallization / methods*
Diffusion
Kinetics
Lithium / chemistry*
Lithium / isolation & purification*
Materials Testing
Microscopy, Electron, Transmission
Nanoparticles / chemistry*
Nanoparticles / ultrastructure*
Particle Size
Silicon / chemistry*

Substances

Lithium
Silicon