The Effect of Pressure on Cathode Performance in the Lithium Sulfur Battery

Persistent Link:
http://hdl.handle.net/10150/312669
Title:
The Effect of Pressure on Cathode Performance in the Lithium Sulfur Battery
Author:
Campbell, Christopher
Issue Date:
2013
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Embargo:
Release 16-Jun-2014
Abstract:
This study was undertaken to understand the effect of applied pressure on the performance of the lithium sulfur cathode. Compressible carbon based cathodes and novel nickel based cathodes were fabricated. For each cathode, pore volume and void volume were quantified and void fraction was calculated, compression under 0 to 2MPa was measured, and lithium-sulfur cells were assembled and cycled at pressures between 0 and 1MPa. The cathodes studied had void fractions in the range of 0.45 to 0.90. Specific discharge capacities between 200 and 1100 mAh/g under 1MPa were observed in carbon-based cathodes. Nickel-based cathodes showed increased specific discharge capacity of up to 1300 mAh/g, with no degradation of performance under pressure. The high correlation of specific discharge capacity and void fraction, in conjunction with previous work, strongly suggest that the performance of lithium-sulfur cathodes is highly dependent on properties that influence ionic mass transport in the cathode.
Type:
text; Electronic Thesis
Keywords:
Cathode; Energy storage; Lithium; specific energy; Sulfur; Materials Science & Engineering; Batteries
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Materials Science & Engineering
Degree Grantor:
University of Arizona
Advisor:
Raghavan, Srini

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleThe Effect of Pressure on Cathode Performance in the Lithium Sulfur Batteryen_US
dc.creatorCampbell, Christopheren_US
dc.contributor.authorCampbell, Christopheren_US
dc.date.issued2013-
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.releaseRelease 16-Jun-2014en_US
dc.description.abstractThis study was undertaken to understand the effect of applied pressure on the performance of the lithium sulfur cathode. Compressible carbon based cathodes and novel nickel based cathodes were fabricated. For each cathode, pore volume and void volume were quantified and void fraction was calculated, compression under 0 to 2MPa was measured, and lithium-sulfur cells were assembled and cycled at pressures between 0 and 1MPa. The cathodes studied had void fractions in the range of 0.45 to 0.90. Specific discharge capacities between 200 and 1100 mAh/g under 1MPa were observed in carbon-based cathodes. Nickel-based cathodes showed increased specific discharge capacity of up to 1300 mAh/g, with no degradation of performance under pressure. The high correlation of specific discharge capacity and void fraction, in conjunction with previous work, strongly suggest that the performance of lithium-sulfur cathodes is highly dependent on properties that influence ionic mass transport in the cathode.en_US
dc.typetexten
dc.typeElectronic Thesisen
dc.subjectCathodeen_US
dc.subjectEnergy storageen_US
dc.subjectLithiumen_US
dc.subjectspecific energyen_US
dc.subjectSulfuren_US
dc.subjectMaterials Science & Engineeringen_US
dc.subjectBatteriesen_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineMaterials Science & Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorRaghavan, Srinien_US
dc.contributor.committeememberRaghavan, Srinien_US
dc.contributor.committeememberAffinito, John D.en_US
dc.contributor.committeememberDeymier, Pierreen_US
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