{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/129281"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/129281","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Development of lignin-PEO interlocked composite phase change materials for thermal stability and structural retention in battery thermal management system","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms","abstract_has_math":false,"creators":["Park, Jun Sang"],"institution":"University of Illinois Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Cai, Lili"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-05-07","date_published":"2025-05-07","updated_at":"2026-07-22T22:25:04Z","subjects":["Polyethylene Oxide (peo)","Lignin","Phase Change Materials","Battery Thermal Management System"],"languages":["en","eng"],"rights":["Copyright 2025 Jun Sang Park"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/129281","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Cai, Lili"]},{"key":"dc:creator","label":"Author","values":["Park, Jun Sang"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2025-05-07","2025-05"]},{"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":["Polyethylene Oxide (peo)","Lignin","Phase Change Materials","Battery Thermal Management System"]}]},{"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 Jun Sang Park"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/129281"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms","The student, Jun Sang Park, accepted the attached license on 2025-04-29 at 12:56.","The student, Jun Sang Park, submitted this Thesis for approval on 2025-04-29 at 13:15.","This Thesis was approved for publication on 2025-05-07 at 15:23.","DSpace SAF Submission Ingestion Package generated from Vireo submission #22087 on 2025-10-19 at 18:11:18","Recently, with the rapid development of high-performance technologies such as electric vehicle batteries, data centers, and artificial intelligence systems, technologies that effectively control excessive heat generated by these systems are becoming important. Phase Change Materials (PCMs), which is attracting attention as a representative thermal management material, absorbs and releases heat by utilizing high latent heat properties, but existing PCM materials have limitations such as shape instability, liquid leakage, and environmental problems in the phase change process. In this research, a new PCM composite material was developed by mixing polyethylene oxide (PEO) and lignin, a natural polymer. The interlocked structure between PEO and lignin formed through a chemical crosslinking reaction and melt mixing process has excellent thermal stability and high shape maintenance properties, and phase change was suppressed even at high temperatures above 115°C to solve the liquid leakage problem. As a result of the experiment, it was found that the produced PCMs maintains a stable shape and excellent thermal control performance even in a repetitive thermal cycle environment. Therefore, the lignin-PEO-based PCMs proposed in this study is expected to be used as an effective thermal control material that simultaneously satisfies stability, durability, and sustainability in various high load environments including the Battery Thermal Management System (BTMS)."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Development of lignin-PEO interlocked composite phase change materials for thermal stability and structural retention in battery thermal management system"]}]}],"canonical_facts":{"dc:contributor":["Cai, Lili"],"dc:creator":["Park, Jun Sang"],"dc:date":["2025-05-07","2025-05"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms","The student, Jun Sang Park, accepted the attached license on 2025-04-29 at 12:56.","The student, Jun Sang Park, submitted this Thesis for approval on 2025-04-29 at 13:15.","This Thesis was approved for publication on 2025-05-07 at 15:23.","DSpace SAF Submission Ingestion Package generated from Vireo submission #22087 on 2025-10-19 at 18:11:18","Recently, with the rapid development of high-performance technologies such as electric vehicle batteries, data centers, and artificial intelligence systems, technologies that effectively control excessive heat generated by these systems are becoming important. Phase Change Materials (PCMs), which is attracting attention as a representative thermal management material, absorbs and releases heat by utilizing high latent heat properties, but existing PCM materials have limitations such as shape instability, liquid leakage, and environmental problems in the phase change process. In this research, a new PCM composite material was developed by mixing polyethylene oxide (PEO) and lignin, a natural polymer. The interlocked structure between PEO and lignin formed through a chemical crosslinking reaction and melt mixing process has excellent thermal stability and high shape maintenance properties, and phase change was suppressed even at high temperatures above 115°C to solve the liquid leakage problem. As a result of the experiment, it was found that the produced PCMs maintains a stable shape and excellent thermal control performance even in a repetitive thermal cycle environment. Therefore, the lignin-PEO-based PCMs proposed in this study is expected to be used as an effective thermal control material that simultaneously satisfies stability, durability, and sustainability in various high load environments including the Battery Thermal Management System (BTMS)."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/129281"],"dc:language":["en","eng"],"dc:rights":["Copyright 2025 Jun Sang Park"],"dc:subject":["Polyethylene Oxide (peo)","Lignin","Phase Change Materials","Battery Thermal Management System"],"dc:title":["Development of lignin-PEO interlocked composite phase change materials for thermal stability and structural retention in battery thermal management system"],"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":"2026-07-22T22:25:04Z"}