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Lee, Sang-Young
Energy Soft-Materials Lab.
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dc.citation.endPage 4448 -
dc.citation.number 8 -
dc.citation.startPage 4438 -
dc.citation.title NANO LETTERS -
dc.citation.volume 14 -
dc.contributor.author Kim, Jung-Hwan -
dc.contributor.author Kim, Jeong-Hoon -
dc.contributor.author Choi, Keun-Ho -
dc.contributor.author Yu, Hyung Kyun -
dc.contributor.author Kim, Jong Hun -
dc.contributor.author Lee, Joo Sung -
dc.contributor.author Lee, Sang-Young -
dc.date.accessioned 2023-12-22T02:17:03Z -
dc.date.available 2023-12-22T02:17:03Z -
dc.date.created 2014-09-03 -
dc.date.issued 2014-08 -
dc.description.abstract The facilitation of ion/electron transport, along with ever-increasing demand for high-energy density, is a key to boosting the development of energy storage systems such as lithium-ion batteries. Among major battery components, separator membranes have not been the center of attention compared to other electrochemically active materials, despite their important roles in allowing ionic flow and preventing electrical contact between electrodes. Here, we present a new class of battery separator based on inverse opal-inspired, seamless nanoscaffold structure ("IO separator"), as an unprecedented membrane opportunity to enable remarkable advances in cell performance far beyond those accessible with conventional battery separators. The IO separator is easily fabricated through one-pot, evaporation-induced self-assembly of colloidal silica nanoparticles in the presence of ultraviolet (UV)-curable triacrylate monomer inside a nonwoven substrate, followed by UV-cross-linking and selective removal of the silica nanoparticle superlattices. The precisely ordered/well-reticulated nanoporous structure of IO separator allows significant improvement in ion transfer toward electrodes. The IO separator-driven facilitation of the ion transport phenomena is expected to play a critical role in the realization of high-performance batteries (in particular, under harsh conditions such as high-mass-loading electrodes, fast charging/discharging, and highly polar liquid electrolyte). Moreover, the IO separator enables the movement of the Ragone plot curves to a more desirable position representing high-energy/high-power density, without tailoring other battery materials and configurations. This study provides a new perspective on battery separators: a paradigm shift from plain porous films to pseudoelectrochemically active nanomembranes that can influence the charge/discharge reaction. -
dc.identifier.bibliographicCitation NANO LETTERS, v.14, no.8, pp.4438 - 4448 -
dc.identifier.doi 10.1021/nl5014037 -
dc.identifier.issn 1530-6984 -
dc.identifier.scopusid 2-s2.0-84906078953 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/5631 -
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84906078953 -
dc.identifier.wosid 000340446200036 -
dc.language 영어 -
dc.publisher AMER CHEMICAL SOC -
dc.title Inverse opal-inspired, nanoscaffold battery separators: A new membrane opportunity for high-performance energy storage systems -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter -
dc.relation.journalResearchArea Chemistry; Science & Technology - Other Topics; Materials Science; Physics -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -

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