| dc.contributor.advisor |
Meyers , Jeremy P . |
en_US |
| dc.contributor.committeeMember |
Ezekoye , Ofodike A . |
en_US |
| dc.creator |
Gerver , Rachel Ellen |
en_US |
| dc.date.accessioned |
2010 -06 -04T14 :49 :20Z |
|
| dc.date.accessioned |
2011 -08 -16T15 :45 :07Z |
|
| dc.date.available |
2010 -06 -04T14 :49 :20Z |
|
| dc.date.available |
2011 -08 -16T15 :45 :07Z |
|
| dc.date.created |
2009 -08 |
en_US |
| dc.date.issued |
2010 -06 -04T14 :49 :20Z |
|
| dc.date.submitted |
August 2009 |
en_US |
| dc.identifier.uri |
http : / /hdl .handle .net /2152 /ETD -UT -2009 -08 -373 |
|
| dc.description.abstract |
The thesis presents a modeling framework for simulating three dimensional effects in lithium -ion batteries . This is particularly important for understanding the performance of large scale batteries used under high power conditions such as in hybrid electric vehicle applications . While 1D approximations may be sufficient for the smaller scale batteries used in cell phones and laptops , they are severely limited when scaled up to larger batteries , where significant 3D gradients can develop in concentration , current , temperature , and voltage . Understanding these 3D effects is critical for designing lithium -ion batteries for improved safety and long term durability , as well as for conducting effective design optimization studies . The model couples an electrochemical battery model with a thermal model to understand how thermal effects will influence electrochemical behavior and to determine temperature distributions throughout the battery . Several modeling example results are presented including thermal influences on current distribution , design optimization of current collector thickness and current collector tab placement , and investigation of lithium plating risk in three dimensions . |
en_US |
| dc.format.mimetype |
application /pdf |
en_US |
| dc.language.iso |
eng |
en_US |
| dc.rights |
Copyright © is held by the author . Presentation of this material on the Libraries' web site by University Libraries , The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works . |
|
| dc.subject |
lithium -ion battery |
en_US |
| dc.subject |
electrochemical modeling |
en_US |
| dc.subject |
current distribution |
en_US |
| dc.subject |
battery design and optimization |
en_US |
| dc.subject |
thermal modeling |
en_US |
| dc.subject |
LiFePO4 |
en_US |
| dc.subject |
computational modeling |
en_US |
| dc.title |
3D thermal -electrochemical lithium -ion battery computational modeling |
en_US |
| dc.description.department |
Mechanical Engineering |
en_US |
| dc.type.genre |
thesis |
en_US |
| dc.type.material |
text |
en_US |
| thesis.degree.name |
Master of Science in Engineering |
en_US |
| thesis.degree.level |
Masters |
en_US |
| thesis.degree.discipline |
Mechanical Engineering |
en_US |
| thesis.degree.grantor |
The University of Texas at Austin |
en_US |
| thesis.degree.department |
Mechanical Engineering |
en_US |