{"id":63114,"date":"2025-06-12T15:00:14","date_gmt":"2025-06-12T07:00:14","guid":{"rendered":"https:\/\/thei.edu.hk\/?p=63114"},"modified":"2026-01-15T10:34:00","modified_gmt":"2026-01-15T02:34:00","slug":"thei-research-webinar-a-eco-friendly-battery-separators-made-from-recycled-water-bottles-better-heat-resistance-for-next-gen-lithium-ion-batteries-was-successfully-held-on-12-june-2","status":"publish","type":"post","link":"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-eco-friendly-battery-separators-made-from-recycled-water-bottles-better-heat-resistance-for-next-gen-lithium-ion-batteries-was-successfully-held-on-12-june-2\/","title":{"rendered":"THEi Research Webinar \u201cA Eco-Friendly Battery Separators Made from Recycled Water Bottles: Better Heat Resistance for Next-Gen Lithium-Ion Batteries\u201d was successfully held on 12 June 2025"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"63114\" class=\"elementor elementor-63114\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-584d707c e-flex e-con-boxed e-con e-parent\" data-id=\"584d707c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2424abf elementor-widget__width-initial elementor--h-position-center elementor--v-position-middle elementor-pagination-position-inside elementor-widget elementor-widget-slides\" data-id=\"2424abf\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;dots&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;transition&quot;:&quot;slide&quot;,&quot;transition_speed&quot;:500}\" data-widget_type=\"slides.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper\">\n\t\t\t\t\t<div class=\"elementor-slides-wrapper elementor-main-swiper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Slides\" dir=\"ltr\" data-animation=\"fadeInUp\">\n\t\t\t\t<div class=\"swiper-wrapper elementor-slides\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-repeater-item-83b7b12 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"June 12 2025 Research Webinar_Page_05\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-1ae0b4a swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"June 12 2025 Research Webinar_Page_27\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-5a024f3 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"June 12 2025 Research Webinar_Page_32\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b0e0b66 elementor-widget elementor-widget-text-editor\" data-id=\"3b0e0b66\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The formation of lithium (Li) dendrites across the separator in lithium-ion batteries (LIBs) poses a significant short-circuit hazard. Conventional separator materials often fail to meet the evolving safety standards for next-generation LIBs. This study presents aluminum nitride modified polyethylene terephthalate (AlN\/PET) composites, synthesized from recycled PET via an electrospinning technique, aimed at enhancing dendrite suppression. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) confirmed the encapsulation of AlN nanoparticles within the PET micro\/nanoarchitecture. Thermogravimetric analysis determined the AlN content to be approximately 4-5 wt%. Characterization by X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR) validated the structural integrity of the PET\/AlN composites. Notably, the PET\/AlN 5 wt% composite exhibited 69.23% porosity and a high electrolyte uptake of 521.69%. Electrochemical tests at 0.5C revealed a reversible specific capacity of 241.7 mAh g\u207b\u00b9 after 100 cycles. C-rate capability assessments showed average specific capacities of 246.5, 225.1, 208.2, 179.2, and 116.5 mAh g\u207b\u00b9 at 0.2, 0.5, 1, 2, and 4C, respectively. The enhanced electrochemical performance is attributed to the synergistic effects of AlN nanoparticles, micro\/nanoarchitectures, and mesoporous structures, facilitating efficient Li ion transport and ensuring hydrothermal stability. This study highlights the potential of PET\/AlN composites as effective and safe separator materials for advanced LIB applications.<\/p><p><b>\u9cf4\u8b1d<\/b><\/p><p>This work was supported by a grant\u00a0 from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project number: UGC\/FDS25\/E06\/19).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>The formation of lithium (Li) dendrites across the separator in lithium-ion batteries (LIBs) poses a significant short-circuit hazard. Conventional separator materials often fail to meet the evolving safety standards for next-generation LIBs. This study presents aluminum nitride modified polyethylene terephthalate &hellip; <\/p>","protected":false},"author":104,"featured_media":63119,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[83],"tags":[],"ppma_author":[194,197,196],"class_list":["post-63114","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ro-research-office-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>THEi Research Webinar \u201cA Eco-Friendly Battery Separators Made from Recycled Water Bottles: Better Heat Resistance for Next-Gen Lithium-Ion Batteries\u201d was successfully held on 12 June 2025 - Technological and Higher Education Institute of Hong Kong<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thei.edu.hk\/tc\/thei-research-webinar-a-eco-friendly-battery-separators-made-from-recycled-water-bottles-better-heat-resistance-for-next-gen-lithium-ion-batteries-was-successfully-held-on-12-june-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_HK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"THEi Research Webinar \u201cA Eco-Friendly Battery Separators Made from Recycled Water Bottles: Better Heat Resistance for Next-Gen Lithium-Ion Batteries\u201d was successfully held on 12 June 2025 - Technological and Higher Education Institute of Hong Kong\" \/>\n<meta property=\"og:description\" content=\"The formation of lithium (Li) dendrites across the separator in lithium-ion batteries (LIBs) poses a significant short-circuit hazard. 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