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dc.contributor.authorPai, Su-Houen_US
dc.date.accessioned2015-04-06T20:14:12Z
dc.date.available2020-01-27T07:01:17Z
dc.date.issued2015-01-26en_US
dc.identifier.otherbibid: 9154523
dc.identifier.urihttps://hdl.handle.net/1813/39418
dc.description.abstractLithium-sulfur batteries have drawn a lot of attentions due to the high theoretical discharge capacity (1675 mAh/g), natural abundance of sulfur and environmental friendliness. However, elemental sulfur is basically an insulator, resulting in extremely low electrical conductivity. In addition, the highly soluble polysulfides formed during charge and discharge tend to pass through the separator to the lithium anode and form lithium polysulfide, resulting in electrochemical irreversibility and thus poor cyclability. Hierarchical porous carbons were proposed to improve the cyclability by exploring the porous structure to sequester the sulfur. Ice-templating has been shown to successfully synthesize hierarchical porous carbons but their electrical conductivity had not been optimized. In this work, hierarchical porous carbons with improved electrical conductivity were developed by carbonizing the porous carbons at different temperatures and using catalytic graphitization method and their performance as electrodes was evaluated.en_US
dc.language.isoen_USen_US
dc.titleExploring How The Carbon-Sulfur Cathode'S Properties In A Lithium-Sulfur Battery System Affect The Cell'S Performanceen_US
dc.typedissertation or thesisen_US
thesis.degree.disciplineMaterials Science and Engineering
thesis.degree.grantorCornell Universityen_US
thesis.degree.levelMaster of Science
thesis.degree.nameM.S., Materials Science and Engineering
dc.contributor.chairGiannelis, Emmanuel Pen_US
dc.contributor.committeeMemberVan Dover, Robert B.en_US


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