{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/130213"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/130213","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Experimental investigation of two-phase immersion cooling of cylindrical lithium-ion cell with a low boiling point dielectric fluid","abstract":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01","abstract_html":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01","abstract_has_math":false,"creators":["Tyagi, Harsh"],"institution":"University of Illinois Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Miljkovic, Nenad"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-07-21","date_published":"2025-07-21","updated_at":"2026-07-22T22:25:06Z","subjects":["Electric Vehicles","Battery Thermal Management","Immersion Cooling","Two-phase Heat Transfer"],"languages":["en","eng"],"rights":["Copyright 2025 Harsh Tyagi"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/130213","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Miljkovic, Nenad"]},{"key":"dc:creator","label":"Author","values":["Tyagi, Harsh"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2025-07-21","2025-08"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Electric Vehicles","Battery Thermal Management","Immersion Cooling","Two-phase Heat Transfer"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2025 Harsh Tyagi"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/130213"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01","The student, Harsh Tyagi, accepted the attached license on 2025-07-20 at 18:08.","The student, Harsh Tyagi, submitted this Thesis for approval on 2025-07-20 at 18:16.","This Thesis was approved for publication on 2025-07-21 at 16:38.","DSpace SAF Submission Ingestion Package generated from Vireo submission #22668 on 2025-10-25 at 15:54:23","Electric vehicles (EVs) are at the forefront of sustainable transportation, requiring advancements in battery technology to enable faster charging speeds, longer lifespan, and enhanced safety. As temperature plays a critical role in the efficiency and longevity of lithium-ion cells, a key challenge to EV battery performance is effective thermal management. Elevated temperatures accelerate internal reactions, leading to faster aging, while low temperatures increase internal resistance and reduce capacity due to decreased ion mobility. With EVs operating in extreme climates and under increasing power demands, thermal management technologies must evolve to meet the growing cooling and heating requirements. This thesis explores the application of 2-phase immersion cooling as a solution to address the thermal challenges faced by EV battery packs. The study begins with a thorough review of existing research on 2-phase immersion cooling, followed by the design of an experimental setup to study 2-phase immersion cooling of a cylindrical lithium-ion cell. Experimental investigations assess the thermal performance of this cooling technique under high C-rates, with performance comparisons made between 0%, 50%, and 100% immersion of the cell. The results demonstrate significant improvements in cooling performance, with the 100% immersion case maintaining the mean cell temperature under 31.4 °C even during an aggressive 10C discharge, compared to 39.6 °C under the 50% immersion condition. However, for the 0% immersion case, the mean cell temperature exceeds the safe operational limit, reaching 88.4 °C during an 8C discharge. Dynamic testing further shows enhanced temperature stability under time-varying electric loads with 100% immersion, in contrast to the 0% immersion scenario. This research highlights the potential of 2-phase immersion cooling for improving the thermal performance of EV battery systems. Future work is outlined, focusing on cyclic ageing and battery pack level performance for this promising technology."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Experimental investigation of two-phase immersion cooling of cylindrical lithium-ion cell with a low boiling point dielectric fluid"]}]}],"canonical_facts":{"dc:contributor":["Miljkovic, Nenad"],"dc:creator":["Tyagi, Harsh"],"dc:date":["2025-07-21","2025-08"],"dc:description":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01","The student, Harsh Tyagi, accepted the attached license on 2025-07-20 at 18:08.","The student, Harsh Tyagi, submitted this Thesis for approval on 2025-07-20 at 18:16.","This Thesis was approved for publication on 2025-07-21 at 16:38.","DSpace SAF Submission Ingestion Package generated from Vireo submission #22668 on 2025-10-25 at 15:54:23","Electric vehicles (EVs) are at the forefront of sustainable transportation, requiring advancements in battery technology to enable faster charging speeds, longer lifespan, and enhanced safety. As temperature plays a critical role in the efficiency and longevity of lithium-ion cells, a key challenge to EV battery performance is effective thermal management. Elevated temperatures accelerate internal reactions, leading to faster aging, while low temperatures increase internal resistance and reduce capacity due to decreased ion mobility. With EVs operating in extreme climates and under increasing power demands, thermal management technologies must evolve to meet the growing cooling and heating requirements. This thesis explores the application of 2-phase immersion cooling as a solution to address the thermal challenges faced by EV battery packs. The study begins with a thorough review of existing research on 2-phase immersion cooling, followed by the design of an experimental setup to study 2-phase immersion cooling of a cylindrical lithium-ion cell. Experimental investigations assess the thermal performance of this cooling technique under high C-rates, with performance comparisons made between 0%, 50%, and 100% immersion of the cell. The results demonstrate significant improvements in cooling performance, with the 100% immersion case maintaining the mean cell temperature under 31.4 °C even during an aggressive 10C discharge, compared to 39.6 °C under the 50% immersion condition. However, for the 0% immersion case, the mean cell temperature exceeds the safe operational limit, reaching 88.4 °C during an 8C discharge. Dynamic testing further shows enhanced temperature stability under time-varying electric loads with 100% immersion, in contrast to the 0% immersion scenario. This research highlights the potential of 2-phase immersion cooling for improving the thermal performance of EV battery systems. Future work is outlined, focusing on cyclic ageing and battery pack level performance for this promising technology."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/130213"],"dc:language":["en","eng"],"dc:rights":["Copyright 2025 Harsh Tyagi"],"dc:subject":["Electric Vehicles","Battery Thermal Management","Immersion Cooling","Two-phase Heat Transfer"],"dc:title":["Experimental investigation of two-phase immersion cooling of cylindrical lithium-ion cell with a low boiling point dielectric fluid"],"dc:type":["text"],"thesis:degree_discipline":["Mechanical Engineering"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:06Z"}