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Electrodes: Tortuosity Anisotropy in Lithium‐Ion Battery Electrodes (Adv. Energy Mater. 5/2014)
Author(s) -
Ebner Martin,
Chung DingWen,
García R. Edwin,
Wood Vanessa
Publication year - 2014
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201470024
Subject(s) - tortuosity , materials science , electrode , anisotropy , lithium (medication) , ion , battery (electricity) , microstructure , particle (ecology) , lithium ion battery , fabrication , composite material , optics , thermodynamics , power (physics) , chemistry , porosity , medicine , physics , oceanography , alternative medicine , pathology , geology , endocrinology , organic chemistry
A systematic study of lithium ion battery electrode microstructure is carried out using X‐ray tomography and numerical diffusion simulations. Fabrication‐induced alignment of non‐spherical particles is found to cause tortuosity anisotropy, which can have a significant impact battery performance. In article number 1301278, Vanessa Wood and co‐workers demonstrate that tortuosity can be easily and accurately predicted based on a simple electron microscopy based assessment of particle shapes and the differential effective medium approximation.