{"id":6508,"date":"2026-05-12T21:44:58","date_gmt":"2026-05-12T13:44:58","guid":{"rendered":"https:\/\/oqitop.com\/?p=6508"},"modified":"2026-05-17T21:46:40","modified_gmt":"2026-05-17T13:46:40","slug":"oqitop-new-material-co-ltd-titanium-fiber-felt-enabling-durable-fuel-cells-at-seoul-national-university","status":"publish","type":"post","link":"https:\/\/oqitop.com\/ar\/oqitop-new-material-co-ltd-titanium-fiber-felt-enabling-durable-fuel-cells-at-seoul-national-university\/","title":{"rendered":"Oqitop New Material Co., Ltd.: Titanium Fiber Felt Enabling Durable Fuel Cells at Seoul National University"},"content":{"rendered":"<p>In the push toward clean energy, fuel cells are at the heart of many next\u2011generation power systems\u2014from vehicles and backup power to distributed energy. But as operating conditions become harsher, traditional carbon\u2011based diffusion layers are reaching their limits. High voltages, acidic environments, and long service lifetimes place extreme demands on the materials inside a fuel cell.<\/p>\n<p>To meet these challenges, researchers at Seoul National University (SNU) turned to a new solution: Oqitop\u2019s titanium fiber felt. By replacing conventional carbon\u2011based gas diffusion layers (GDLs) with corrosion\u2011resistant, highly conductive titanium fiber felt, SNU has taken a key step toward more robust, high\u2011performance fuel cell systems under harsh operating conditions.<\/p>\n<h2>The Challenge: Fuel Cells Under Harsh Conditions<\/h2>\n<p>In many real\u2011world applications, fuel cells no longer operate under mild, \u201cideal\u201d conditions. Instead, they are exposed to:<\/p>\n<ul>\n<li>High voltages, especially during start\u2011stop cycles or fault conditions<\/li>\n<li>Strongly acidic environments from proton exchange membranes and electrolyte<\/li>\n<li>Long\u2011term operation with frequent load changes and dynamic gas supply<\/li>\n<li>Elevated humidity and temperature variations<\/li>\n<\/ul>\n<p>Under these conditions, traditional <strong>carbon\u2011based diffusion layers<\/strong> face serious issues:<\/p>\n<ul>\n<li>Carbon corrosion at high potentials, leading to structural degradation<\/li>\n<li>Loss of electrical conductivity over time<\/li>\n<li>Changes in pore structure, causing uneven gas distribution and localized flooding or drying<\/li>\n<li>Reduced long\u2011term power output and unstable cell performance<\/li>\n<\/ul>\n<p>Seoul National University\u2019s fuel cell research team needed a more stable, metallic diffusion layer material that could survive high\u2011voltage and acidic conditions, maintain conductivity, and ensure uniform gas transport over thousands of operating hours.<\/p>\n<h2>Oqitop Titanium Fiber Felt: Built for Corrosive, High\u2011Voltage Environments<\/h2>\n<p>Oqitop New Material Co., Ltd. specializes in advanced metal fiber materials. Our <strong>titanium fiber felt<\/strong> is designed for extreme electrochemical environments\u2014especially fuel cells that demand both chemical stability and excellent electrical performance.<\/p>\n<p>By using high\u2011purity titanium fibers formed into a three\u2011dimensional sintered network, Oqitop titanium fiber felt offers a combination of properties that carbon\u2011based diffusion layers struggle to match:<\/p>\n<h3>1. Exceptional Corrosion Resistance in Acidic and High\u2011Voltage Conditions<\/h3>\n<p>Titanium is known for its outstanding corrosion resistance, especially in acidic media and electrochemical systems. In a fuel cell environment:<\/p>\n<ul>\n<li>Titanium fiber felt forms a stable, protective oxide layer that resists chemical attack<\/li>\n<li>It maintains its structural integrity even under high potentials where carbon materials would corrode<\/li>\n<li>Long\u2011term exposure to acidic electrolytes and oxidizing conditions does not cause rapid degradation<\/li>\n<\/ul>\n<p>For SNU\u2019s research, this meant a <strong>diffusion layer that remains reliable over extended operation<\/strong>, rather than gradually decaying and limiting the cell\u2019s service life.<\/p>\n<h3>2. Stable Electrical Conductivity Over Time<\/h3>\n<p>Where carbon\u2011based GDLs may lose conductivity as they corrode or change structurally, titanium fiber felt offers:<\/p>\n<ul>\n<li>A continuous metallic network with low contact resistance<\/li>\n<li>Stable electrical pathways even after prolonged cycling<\/li>\n<li>Consistent electron transport between catalyst layer, bipolar plate, and current collectors<\/li>\n<\/ul>\n<p>\u0647\u0630\u0627 <strong>stable conductivity<\/strong> is critical to maintaining voltage output, minimizing ohmic losses, and ensuring that the fuel cell stack behaves predictably in demanding conditions.<\/p>\n<h3>3. Uniform Gas Distribution and Water Management<\/h3>\n<p>A well\u2011designed diffusion layer must do more than conduct electrons; it must also manage gases and water effectively. Oqitop titanium fiber felt is engineered with:<\/p>\n<ul>\n<li>Controlled porosity and pore size distribution<\/li>\n<li>A three\u2011dimensional interconnected structure that promotes uniform gas flow<\/li>\n<li>Tunable thickness and compression characteristics to match stack design<\/li>\n<\/ul>\n<p>In SNU\u2019s tests, this translated into:<\/p>\n<ul>\n<li>More uniform distribution of reactant gases (hydrogen and air\/oxygen) across the active area<\/li>\n<li>Reduced risk of local flooding or gas starvation<\/li>\n<li>More stable cell performance over a wide range of current densities and operating conditions<\/li>\n<\/ul>\n<p>Uniform gas supply is especially critical under harsh conditions, where even small imbalances can accelerate degradation or trigger local hot spots.<\/p>\n<h3>4. Mechanical Robustness and Design Flexibility<\/h3>\n<p>Titanium fiber felt is not only chemically stable; it is also mechanically robust:<\/p>\n<ul>\n<li>It resists compression set and maintains structural integrity under stack clamping forces<\/li>\n<li>It tolerates thermal cycling and vibration better than fragile carbon structures<\/li>\n<li>It can be produced in different thicknesses, densities, and formats to integrate with existing stack designs<\/li>\n<\/ul>\n<p>This gives fuel cell designers the flexibility to optimize <strong>both performance and durability<\/strong> without having to compromise on mechanical reliability.<\/p>\n<h2>Collaboration with Seoul National University: From Concept to Validation<\/h2>\n<p>Recognizing the limitations of carbon\u2011based diffusion layers in harsh operating regimes, the fuel cell team at Seoul National University initiated a collaboration with Oqitop to evaluate titanium fiber felt as an alternative GDL for proton exchange membrane fuel cells (PEMFCs) and related systems.<\/p>\n<p>Throughout the project, Oqitop provided:<\/p>\n<ul>\n<li>Titanium fiber felt samples with different porosities and thicknesses<\/li>\n<li>Guidance on compression, contact interfaces, and assembly methods<\/li>\n<li>Recommendations on integrating metallic diffusion layers into existing cell designs<\/li>\n<\/ul>\n<p>SNU then performed a series of tests under <strong>high voltage, acidic, and dynamic operating conditions<\/strong> to evaluate:<\/p>\n<ul>\n<li>Corrosion behavior and structural stability of the diffusion layer<\/li>\n<li>Evolution of electrical resistance over time<\/li>\n<li>Gas transport performance and pressure drop<\/li>\n<li>Long\u2011term power output and voltage stability under cycling<\/li>\n<\/ul>\n<h3>Key Findings<\/h3>\n<p>The collaborative work delivered several important outcomes:<\/p>\n<ol>\n<li><strong>Effective Replacement of Carbon\u2011Based Diffusion Layers<\/strong><br \/>\nTitanium fiber felt successfully replaced carbon\u2011based GDLs in SNU\u2019s test cells without requiring fundamental changes to the fuel cell chemistry. Integration with membranes, catalysts, and bipolar plates was achieved using existing or slightly adapted processes.<\/li>\n<li><strong>Superior Corrosion Resistance<\/strong><br \/>\nUnder accelerated stress tests at high potentials in acidic environments, titanium fiber felt exhibited <strong>minimal degradation<\/strong>, in sharp contrast to significant corrosion and property loss in carbon\u2011based layers.<\/li>\n<li><strong>Stable Conductivity and Performance<\/strong><br \/>\nElectrical resistance remained stable over extended test periods. Voltage output drift was significantly reduced, and the stack showed <strong>more consistent performance<\/strong> during long\u2011term cycling.<\/li>\n<li><strong>More Uniform Gas Distribution<\/strong><br \/>\nElectrochemical mapping and performance diagnostics indicated a more even current distribution across the active area, reflecting <strong>improved gas distribution and water management<\/strong> enabled by the engineered pore structure of the titanium fiber felt.<\/li>\n<\/ol>\n<p>These results confirmed that Oqitop\u2019s titanium fiber felt offers a <strong>credible, high\u2011reliability alternative<\/strong> to carbon\u2011based diffusion layers for fuel cells operating in harsh conditions.<\/p>\n<h2>Beyond Material Supply: Oqitop as a Technical Partner<\/h2>\n<p>For Oqitop, the collaboration with Seoul National University is more than a case of material delivery; it is a demonstration of our role as a technical partner in advanced energy systems. We work closely with researchers and engineers to:<\/p>\n<ul>\n<li>Customize titanium fiber felt properties (fiber diameter, porosity, thickness) to specific stack designs<\/li>\n<li>Optimize interfaces with catalyst layers and bipolar plates<\/li>\n<li>Co\u2011develop testing protocols to evaluate real\u2011world durability and performance<\/li>\n<\/ul>\n<p>Through such partnerships, we help bridge the gap between <strong>laboratory innovation and practical implementation<\/strong> in fuel cells and other electrochemical systems.<\/p>\n<h2>Enabling the Next Generation of Fuel Cells<\/h2>\n<p>As fuel cells move into more demanding, high\u2011value applications\u2014such as heavy\u2011duty vehicles, stationary backup power, and industrial energy systems\u2014the need for <strong>durable, corrosion\u2011resistant, and high\u2011performance diffusion layers<\/strong> will only grow.<\/p>\n<p>Oqitop titanium fiber felt offers a compelling pathway to:<\/p>\n<ul>\n<li>Replace carbon\u2011based diffusion layers in harsh operating environments<\/li>\n<li>Enhance corrosion resistance under high voltage and acidic conditions<\/li>\n<li>Maintain stable electrical conductivity over long lifetimes<\/li>\n<li>Improve uniform gas distribution and overall cell stability<\/li>\n<\/ul>\n<p>Oqitop New Material Co., Ltd. is ready to support:<\/p>\n<ul>\n<li><strong>Universities and research institutes<\/strong>\u00a0exploring metallic diffusion layers and advanced fuel cell architectures<\/li>\n<li><strong>Fuel cell manufacturers<\/strong>\u00a0seeking to upgrade stack durability and reliability<\/li>\n<li><strong>System integrators and end users<\/strong>\u00a0who need robust fuel cell solutions for critical applications<\/li>\n<\/ul>\n<p>If your fuel cell systems are constrained by the limitations of carbon\u2011based diffusion layers, Oqitop\u2019s titanium fiber felt may be the key material that unlocks the next level of performance and durability.<\/p>\n<p>\u2014<br \/>\nOqitop New Material Co., Ltd.<br \/>\nAdvanced metal fiber solutions for the future of clean energy.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-large wp-image-6509\" src=\"https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/2-89-1024x1024.jpg\" alt=\"\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/2-89-1024x1024.jpg 1024w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/2-89-300x300.jpg 300w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/2-89-150x150.jpg 150w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/2-89-768x768.jpg 768w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/2-89-12x12.jpg 12w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/2-89.jpg 1254w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/> <img decoding=\"async\" class=\"aligncenter size-large wp-image-6510\" src=\"https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-91-1024x1024.jpg\" alt=\"\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-91-1024x1024.jpg 1024w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-91-300x300.jpg 300w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-91-150x150.jpg 150w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-91-768x768.jpg 768w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-91-12x12.jpg 12w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-91.jpg 1254w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/> <img decoding=\"async\" class=\"aligncenter size-large wp-image-6511\" src=\"https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-85-1024x1024.jpg\" alt=\"\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-85-1024x1024.jpg 1024w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-85-300x300.jpg 300w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-85-150x150.jpg 150w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-85-768x768.jpg 768w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-85-12x12.jpg 12w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-85.jpg 1254w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>In the push toward clean energy, fuel cells are at the heart of many next\u2011generation power systems\u2014from vehicles and backup power to distributed energy. But as operating conditions become harsher, traditional carbon\u2011based diffusion layers are reaching their limits. High voltages, acidic environments, and long service lifetimes place extreme demands on the materials inside a fuel [&hellip;]<\/p>","protected":false},"author":1,"featured_media":6512,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6508","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/posts\/6508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/comments?post=6508"}],"version-history":[{"count":1,"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/posts\/6508\/revisions"}],"predecessor-version":[{"id":6513,"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/posts\/6508\/revisions\/6513"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/media\/6512"}],"wp:attachment":[{"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/media?parent=6508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/categories?post=6508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oqitop.com\/ar\/wp-json\/wp\/v2\/tags?post=6508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}