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dc.contributor.authorJoshi, Yash Milind
dc.date.accessioned2020-06-23T18:00:44Z
dc.date.available2020-06-23T18:00:44Z
dc.date.issued2019-12
dc.identifier.otherJoshi_cornell_0058O_10743
dc.identifier.otherhttp://dissertations.umi.com/cornell:10743
dc.identifier.urihttps://hdl.handle.net/1813/70035
dc.description122 pages
dc.description.abstractLithium ion batteries (LIB) have been the front runners to offer solutions to energy storage and electronic applications. The current state of art LIB’s are unable to satisfy the demands for EV applications due to their low energy density. To improve the energy density of LIB’s Silicon has been most promising due its extraordinary theoretical capacity However Silicon anode expands 2-3 times its original size while taking in Lithium ions for their storage. This leads to pulverization and loss of electrical contact of the electrode material leading to severe capacity decay. Thus mitigation of this volume expansion has been a stumbling block for its commercialization. In this work various strategies like an effective assembly of Silicon/ Graphite/ Graphene via Air controlled-Electrospray are utilized to overcome this issue. Moreover, using facile and scalable ways to create mesopores as well as macropores to accommodate the silicon volume expansion is also investigated. The results demonstrates capacity several times higher than the traditional LIB’s as well as stable capacity over several cycles of deep discharge. The results show that the different modes of failure for silicon based anodes are successfully addressed and the proposed assembly by the means of air-controlled electrospray is scalable and economic fabrication technique.
dc.subjectair controlled electrospray
dc.subjectcomposite
dc.subjectgraphene
dc.subjectgraphite
dc.subjectLithium ion batteries
dc.subjectsilicon
dc.titleSILICON/GRAPHITE/GRAPHENE HYBRID ANODES VIA AIR CONTROLLED ELECTROSPRAYING FOR LITHIUM ION BATTERIES
dc.typedissertation or thesis
thesis.degree.disciplineChemical Engineering
thesis.degree.levelMaster of Science
thesis.degree.nameM.S., Chemical Engineering
dc.contributor.chairJoo, Yong L.
dc.contributor.committeeMemberHanrath, Tobias
dcterms.licensehttps://hdl.handle.net/1813/59810
dc.identifier.doihttps://doi.org/10.7298/0d4e-y558


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