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Transport, reaction mechanism, and hysteresis studies of iron-base conversion fluorides
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Ko, Jonathan. Transport, reaction mechanism, and hysteresis studies of iron-base conversion fluorides. Retrieved from https://doi.org/doi:10.7282/T3QV3P6B

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TitleTransport, reaction mechanism, and hysteresis studies of iron-base conversion fluorides
NameKo, Jonathan (author); Amatucci, Glenn G (chair); GAROFALINI, STEPHEN H (internal member); KLEIN, LISA C (internal member); Greenblatt, Martha (outside member); Rutgers University; Graduate School - New Brunswick
Date Created2015
Other Date2015-01 (degree)
SubjectMaterials Science and Engineering, Lithium ion batteries, Fluorides, Nanocomposites (Materials)
Extent1 online resource (xv, 152 p. : ill.)
DescriptionIron-base metal fluorides have been a particular interest as a positive electrode material in Li-ion batteries because of their high energy density and lower cost than commercial intercalation materials. During lithiation, these materials undergo a conversion reaction forming two separate phases, LiF and reduced Fe. Near theoretical capacities are reached when these materials are made into nanocomposites. However, they experience a capacity fade with low cycling rates. In addition, it is not clear on the reaction pathway these materials take during lithiation and delithiation as well as the large hysteresis in its cycling profile. This thesis investigate three candidate materials, FeF2, FeF3, and FeO0.67F1.33 by looking at the ionic and electronic transport, reaction mechanism, and hysteresis and link them to their electrochemical performance. Previous studies indicated a percolated structure of Fe0-LiF forming during lithiation. However, there was not quantitative proof that the network of Fe0 was electronically supporting. During the course of the study, it was discovered how surprisingly high it was conductive that it led to new testing that utilized its conductive properties.
NotePh.D.
NoteIncludes bibliographical references
Noteby Jonathan Kaiwei Ko
Genretheses, ETD doctoral
Persistent URLhttps://doi.org/doi:10.7282/T3QV3P6B
Languageeng
CollectionGraduate School - New Brunswick Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
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