Poly(m-phenylene isophthalamide)-graphene oxide composite separators: A pathway to safer and high-performance lithium-ion batteries
Safety concerns remain a major challenge for lithium-ion batteries (LIBs), particularly due to the poor thermal stability and flame retardancy of commercial polyolefin separators. To address these issues, we propose a separator modification technique using a composite of poly(m-phenylene isophthalam...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-10-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941825002442 |
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| author | Haneum Kim Eunseo Jeon Yangyul Ju Jinyoung Chun Doojin Lee |
| author_facet | Haneum Kim Eunseo Jeon Yangyul Ju Jinyoung Chun Doojin Lee |
| author_sort | Haneum Kim |
| collection | DOAJ |
| description | Safety concerns remain a major challenge for lithium-ion batteries (LIBs), particularly due to the poor thermal stability and flame retardancy of commercial polyolefin separators. To address these issues, we propose a separator modification technique using a composite of poly(m-phenylene isophthalamide) (PMIA) and graphene oxide (GO) to enhance thermal stability, flame retardancy, and electrolyte wettability. The PMIA-GO coating leverages the excellent heat resistance of PMIA and strong hydrogen bonding between PMIA and GO to improve thermomechanical strength and structural integrity at high temperatures. The microporous structure acts as an electrolyte reservoir, while oxygen-functional groups increase wettability, enhancing ionic transport and electrochemical performance. LIBs assembled with PMIA-GO nanocomposite separators exhibit superior ionic conductivity, cycling stability, and capacity retention, as well as durable thermomechanical properties, outperforming conventional PE separators. |
| format | Article |
| id | doaj-art-2fa1162b4e564a12923bd12ad1b54763 |
| institution | Kabale University |
| issn | 1873-2348 |
| language | English |
| publishDate | 2025-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj-art-2fa1162b4e564a12923bd12ad1b547632025-08-20T03:39:36ZengElsevierPolymer Testing1873-23482025-10-0115110893010.1016/j.polymertesting.2025.108930Poly(m-phenylene isophthalamide)-graphene oxide composite separators: A pathway to safer and high-performance lithium-ion batteriesHaneum Kim0Eunseo Jeon1Yangyul Ju2Jinyoung Chun3Doojin Lee4Department of Polymer Science and Engineering, Chonnam National University, Gwangju, 61186, South KoreaDepartment of Polymer Science and Engineering, Chonnam National University, Gwangju, 61186, South KoreaDepartment of Polymer Science and Engineering, Chonnam National University, Gwangju, 61186, South KoreaEmerging Materials R&D Division, Korea Institute of Ceramic Engineering & Technology, Jinju, 52851, South KoreaDepartment of Polymer Science and Engineering, Chonnam National University, Gwangju, 61186, South Korea; Corresponding author.Safety concerns remain a major challenge for lithium-ion batteries (LIBs), particularly due to the poor thermal stability and flame retardancy of commercial polyolefin separators. To address these issues, we propose a separator modification technique using a composite of poly(m-phenylene isophthalamide) (PMIA) and graphene oxide (GO) to enhance thermal stability, flame retardancy, and electrolyte wettability. The PMIA-GO coating leverages the excellent heat resistance of PMIA and strong hydrogen bonding between PMIA and GO to improve thermomechanical strength and structural integrity at high temperatures. The microporous structure acts as an electrolyte reservoir, while oxygen-functional groups increase wettability, enhancing ionic transport and electrochemical performance. LIBs assembled with PMIA-GO nanocomposite separators exhibit superior ionic conductivity, cycling stability, and capacity retention, as well as durable thermomechanical properties, outperforming conventional PE separators.http://www.sciencedirect.com/science/article/pii/S0142941825002442Graphene oxideNanocomposite separatorsPolyamide compositesThermomechanical propertiesTime–temperature superposition theory |
| spellingShingle | Haneum Kim Eunseo Jeon Yangyul Ju Jinyoung Chun Doojin Lee Poly(m-phenylene isophthalamide)-graphene oxide composite separators: A pathway to safer and high-performance lithium-ion batteries Polymer Testing Graphene oxide Nanocomposite separators Polyamide composites Thermomechanical properties Time–temperature superposition theory |
| title | Poly(m-phenylene isophthalamide)-graphene oxide composite separators: A pathway to safer and high-performance lithium-ion batteries |
| title_full | Poly(m-phenylene isophthalamide)-graphene oxide composite separators: A pathway to safer and high-performance lithium-ion batteries |
| title_fullStr | Poly(m-phenylene isophthalamide)-graphene oxide composite separators: A pathway to safer and high-performance lithium-ion batteries |
| title_full_unstemmed | Poly(m-phenylene isophthalamide)-graphene oxide composite separators: A pathway to safer and high-performance lithium-ion batteries |
| title_short | Poly(m-phenylene isophthalamide)-graphene oxide composite separators: A pathway to safer and high-performance lithium-ion batteries |
| title_sort | poly m phenylene isophthalamide graphene oxide composite separators a pathway to safer and high performance lithium ion batteries |
| topic | Graphene oxide Nanocomposite separators Polyamide composites Thermomechanical properties Time–temperature superposition theory |
| url | http://www.sciencedirect.com/science/article/pii/S0142941825002442 |
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