In-situ atomic force microscopy analysis of morphology and particle size changes in LiFePO4 cathode

Simple item page
dc.contributor.authorDemirocak, Dervis Emre
dc.contributor.authorBhushan, B.
dc.date.accessioned2019-10-22T16:11:39Z
dc.date.available2019-10-22T16:11:39Z
dc.date.issued2014
dc.description.abstractLi-ion batteries offer great promise for future plug-in hybrid electric vehicles (PHEVs) and pure electric vehicles (EVs). One of the challenges is to improve the cycle life of Li-ion batteries which requires detailed understanding of the aging phenomenon. In situ techniques are especially valuable to understand aging since it allows monitoring the physical and chemical changes in real time. In this study, in situ atomic force microscopy (AFM) is utilized to study the changes in morphology and particle size of LiFePO4 cathode during discharge. The guidelines for in situ AFM cell design for accurate and reliable measurements based on different designs are presented. The effect of working electrode to counter electrode surface area ratio on cycling data of an in situ cell is also discussed. Analysis of the surface area change in LiFePO4 particles when the cell was cycled between 100% and 70% state of charge is presented. Among four particles analyzed, surface area increase of particles during Li intercalation of LiFePO4 spanned from 1.8% to 14.3% indicating the inhomogeneous nature of the cathode surface.en_US
dc.identifier.citationDE Demirocak & B Bhushan. In-situ atomic force microscopy analysis of morphology and particle size changes in LiFePO4 cathode. Journal of Colloid and Interface Science, 2014, 423, 151-7.en_US
dc.identifier.urihttps://hdl.handle.net/10657.1/1605
dc.relation.ispartofseriesJournal of Colloid and Interface Science;Vol. 423, pp. 151-157
dc.titleIn-situ atomic force microscopy analysis of morphology and particle size changes in LiFePO4 cathodeen_US
dc.typeArticleen_US

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
In-situ atomic force microscopy analysis of morphology and particle size changes in LiFePO4 cathode.pdf
Size:
326.87 KB
Format:
Adobe Portable Document Format
Description:
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

College of Science and Engineering