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Studying the Kinetics of Crystalline Silicon Nanoparticle Lithiation with In Situ Transmission Electron Microscopy
Author(s) -
McDowell Matthew T.,
Ryu Ill,
Lee Seok Woo,
Wang Chongmin,
Nix William D.,
Cui Yi
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201202744
Subject(s) - materials science , transmission electron microscopy , anode , silicon , kinetics , nanoparticle , particle (ecology) , electrochemistry , diffusion , in situ , chemical engineering , nanotechnology , crystalline silicon , electron microscope , battery (electricity) , ion , electrode , optoelectronics , chemistry , optics , power (physics) , physics , oceanography , quantum mechanics , geology , engineering , thermodynamics , organic chemistry
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.