%0 Online Multimedia %A Padilla, Nicolas A. %A Rea, Morgan T. %A Foy, Michael %A Upadhyay, Sunil P. %A Desrochers, Kyle A. %A Derus, Tyler %A Knapper, Kassandra A. %A Hunter, Nathanael H. %A Wood, Sharla %A Hinton, Daniel A. %A Cavell, Andrew C. %A Masias, Alvaro G. %A Goldsmith, Randall H. %D 2017 %T Tracking Lithium Ions via Widefield Fluorescence Microscopy for Battery Diagnostics %U https://acs.figshare.com/articles/media/Tracking_Lithium_Ions_via_Widefield_Fluorescence_Microscopy_for_Battery_Diagnostics/5198197 %R 10.1021/acssensors.7b00087.s002 %2 https://acs.figshare.com/ndownloader/files/8869249 %K lithium ion diffusion %K lithium ions %K widefield fluorescence microscopy %K lithium ion batteries %K plasticized polymer electrolyte lithium battery %K Tracking Lithium Ions %K Widefield Fluorescence Microscopy %K microfluidic model system %X Direct tracking of lithium ions with time and spatial resolution can provide an important diagnostic tool for understanding mechanisms in lithium ion batteries. A fluorescent indicator of lithium ions, 2-(2-hydroxyphenyl)­naphthoxazole, was synthesized and used for real-time tracking of lithium ions via widefield fluorescence microscopy. The fluorophore can be excited with visible light and was shown to enable quantitative determination of the lithium ion diffusion constant in a microfluidic model system for a plasticized polymer electrolyte lithium battery. The use of widefield fluorescence microscopy for in situ tracking of lithium ions in batteries is discussed. %I ACS Publications