{"id":6497,"date":"2026-05-01T21:28:28","date_gmt":"2026-05-01T13:28:28","guid":{"rendered":"https:\/\/oqitop.com\/?p=6497"},"modified":"2026-05-17T21:33:17","modified_gmt":"2026-05-17T13:33:17","slug":"oqitop-new-material-co-ltd-nickel-fiber-felt-empowering-next%e2%80%91generation-ni%e2%80%91mh-batteries-at-the-university-of-barcelona","status":"publish","type":"post","link":"https:\/\/oqitop.com\/fr\/oqitop-new-material-co-ltd-nickel-fiber-felt-empowering-nextgeneration-nimh-batteries-at-the-university-of-barcelona\/","title":{"rendered":"Oqitop New Material Co., Ltd.: Nickel Fiber Felt Empowering Next\u2011Generation Ni\u2011MH Batteries at the University of Barcelona"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p>In a world increasingly driven by clean energy and high\u2011reliability power systems, traditional battery materials are reaching their limits. Researchers and manufacturers are actively searching for new electrode structures that can dramatically improve performance, extend cycle life, and enhance safety\u2014without completely changing the existing battery chemistry.<\/p>\n<p>Against this backdrop, Oqitop New Material Co., Ltd.\u2019s high\u2011performance nickel fiber felt has entered the laboratory of the University of Barcelona in Spain and successfully helped its research team upgrade the nickel\u2013metal hydride (MH\u2011Ni) battery. By using nickel fiber felt as the positive electrode skeleton \/ current collector, our material has replaced conventional nickel foam, delivering stronger adhesion of the active material, higher utilization, a cycle life of several thousand cycles, and excellent vibration resistance.<\/p>\n<h2>From Nickel Foam to Nickel Fiber Felt: A Key Materials Upgrade<\/h2>\n<p>In conventional Ni\u2011MH batteries, nickel foam has long been the mainstream choice for the positive electrode skeleton and current collector. While it offers a basic porous and conductive structure, it also shows clear limitations in advanced applications:<\/p>\n<ul>\n<li>Active material may not adhere firmly, leading to detachment after long\u2011term cycling<\/li>\n<li>Pore structure and effective surface area are not fully optimized, restricting active material utilization<\/li>\n<li>Limited mechanical robustness under long\u2011term charge\/discharge and vibration, affecting cycle life and reliability<\/li>\n<\/ul>\n<p>The University of Barcelona\u2019s electrochemical research team has been focusing on improving the structure and materials of Ni\u2011MH batteries. Their objective was clear: find a new positive electrode skeleton \/ current collector that could replace nickel foam, significantly boost performance, and provide long\u2011term stability\u2014without changing the basic MH\u2011Ni chemistry.<\/p>\n<p>This is exactly where Oqitop\u2019s nickel fiber felt came in.<\/p>\n<h2>Designed for High\u2011Performance Ni\u2011MH: The Advantages of Oqitop Nickel Fiber Felt<\/h2>\n<p>Oqitop New Material Co., Ltd. specializes in metal fibers and porous metal materials. Our nickel fiber felt is produced from high\u2011purity nickel through precise fiber manufacturing and controlled sintering, forming a three\u2011dimensional, fully interconnected conductive network. This unique structure aligns perfectly with the needs of the Ni\u2011MH positive electrode:<\/p>\n<h3>1. 3D Conductive Network for Uniform Current Distribution<\/h3>\n<p>The sintered nickel fibers form a continuous three\u2011dimensional network with excellent conductivity:<\/p>\n<ul>\n<li>More uniform current distribution across the electrode<\/li>\n<li>Reduced local current hotspots and polarization<\/li>\n<li>Improved consistency of electrochemical reactions across the entire electrode<\/li>\n<li>Enhanced capability for higher rate charge\/discharge<\/li>\n<\/ul>\n<h3>2. High Porosity and Optimized Pore Structure<\/h3>\n<p>Nickel fiber felt features high, controllable porosity and well\u2011connected pores:<\/p>\n<ul>\n<li>Active material slurry can penetrate deeply into the internal skeleton<\/li>\n<li>Larger effective surface area increases the electrochemically active interface<\/li>\n<li>Active material takes part in reactions more completely, significantly improving utilization<\/li>\n<\/ul>\n<h3>3. Strong Active Material Adhesion and Stable Cycling<\/h3>\n<p>Thanks to its fiber network and surface morphology, nickel fiber felt provides a more \u201canchored\u201d and interlocked interface between the skeleton and the active material:<\/p>\n<ul>\n<li>Stronger mechanical interlocking between the coating and the metal framework<\/li>\n<li>Much less active material peeling or pulverization during long\u2011term cycling<\/li>\n<li>Slower internal resistance increase and better capacity retention over time<\/li>\n<\/ul>\n<h3>4. Excellent Vibration and Shock Resistance<\/h3>\n<p>For applications exposed to vibration or impact (such as automotive, power tools, and industrial equipment), mechanical stability of the electrode is critical:<\/p>\n<ul>\n<li>Nickel fiber felt offers better toughness and structural integrity compared with conventional foams<\/li>\n<li>The electrode structure remains stable under vibration and mechanical shock<\/li>\n<li>Battery performance is maintained reliably over thousands of cycles, even in demanding environments<\/li>\n<\/ul>\n<h2>Project Achievements at the University of Barcelona<\/h2>\n<p>Working with Oqitop, the University of Barcelona selected our nickel fiber felt as the positive electrode skeleton \/ current collector for a series of Ni\u2011MH cell prototypes. Through systematic testing, they obtained several key results:<\/p>\n<ul>\n<li><strong>Successful Replacement of Nickel Foam<\/strong><br \/>\nNickel fiber felt fully replaced nickel foam as the positive skeleton \/ current collector without changing the basic MH\u2011Ni chemistry or overall manufacturing framework. Electrode preparation remained stable, with high process compatibility.<\/li>\n<li><strong>Firm Attachment of Active Material<\/strong><br \/>\nMicroscopic and post\u2011cycling cross\u2011sectional analyses showed that the active material adhered more firmly to the nickel fiber felt. Even after long\u2011term cycling, the electrode surface remained intact and cohesive, outperforming the nickel foam reference.<\/li>\n<li><strong>Higher Active Material Utilization<\/strong><br \/>\nUnder identical paste formulation and electrode loading conditions, cells using nickel fiber felt delivered higher discharge capacity and a more stable voltage plateau, indicating a clear improvement in active material utilization.<\/li>\n<li><strong>Cycle Life Reaching Several Thousand Cycles<\/strong><br \/>\nUnder standard conditions and moderate C\u2011rates, Ni\u2011MH cells built on nickel fiber felt achieved stable long\u2011term cycling with a service life of several thousand cycles. Capacity fade was slow and progressive, pointing to a robust and durable electrode system.<\/li>\n<li><strong>Outstanding Vibration Resistance<\/strong><br \/>\nIn vibration and mechanical shock tests, the nickel fiber felt\u2011based electrodes showed superior structural stability. Internal connections remained reliable, and electrical performance fluctuations were minimal, demonstrating excellent suitability for real\u2011world dynamic environments.<\/li>\n<\/ul>\n<p>These results have not only earned high recognition from the University of Barcelona research team, but also opened up new possibilities for upgrading Ni\u2011MH technology in various fields, from transportation and power tools to backup and emergency power systems.<\/p>\n<h2>Beyond Material Supply: A Technical Partner in Electrode Innovation<\/h2>\n<p>Throughout the collaboration, Oqitop did more than ship materials. We worked closely with the University of Barcelona to:<\/p>\n<ul>\n<li>Provide nickel fiber felt in different thicknesses and porosities<\/li>\n<li>Help optimize the match between felt structure and active material slurry<\/li>\n<li>Offer recommendations on coating, impregnation, and drying processes<\/li>\n<li>Balance mechanical strength, flexibility, and porosity to suit their specific cell design<\/li>\n<\/ul>\n<p>This end\u2011to\u2011end cooperation\u2014from material selection and process adaptation to performance verification\u2014demonstrates Oqitop\u2019s role not just as a supplier, but as a long\u2011term technical partner in electrode innovation.<\/p>\n<h2>Looking Ahead: Upgrading Ni\u2011MH Batteries Worldwide<\/h2>\n<p>Despite the rapid growth of lithium\u2011ion technology, Ni\u2011MH batteries still play an important role in applications that demand high safety, wide operating temperature ranges, and strong tolerance to abuse and overcharge.<\/p>\n<p>By introducing Oqitop nickel fiber felt as a new\u2011generation positive electrode skeleton \/ current collector, traditional Ni\u2011MH batteries can be significantly upgraded:<\/p>\n<ul>\n<li>Higher active material utilization<\/li>\n<li>Cycle life extended to several thousand cycles and beyond<\/li>\n<li>Stronger resistance to vibration and mechanical stress<\/li>\n<li>Improved overall reliability and safety margins<\/li>\n<\/ul>\n<p>Oqitop New Material Co., Ltd. is ready to extend the successful experience with the University of Barcelona to partners worldwide:<\/p>\n<ul>\n<li><strong>For research institutions:<\/strong><br \/>\nWe offer customizable nickel fiber felt parameters and technical support for cutting\u2011edge electrochemical research.<\/li>\n<li><strong>For battery manufacturers:<\/strong><br \/>\nWe support a smooth transition from nickel foam to nickel fiber felt, providing process suggestions and stable mass\u2011production supply.<\/li>\n<li><strong>For system integrators and end users:<\/strong><br \/>\nWe help enable more reliable Ni\u2011MH battery solutions with longer life and higher stability.<\/li>\n<\/ul>\n<p>If you are facing limitations with nickel foam or seeking to significantly improve the performance and durability of your Ni\u2011MH batteries, Oqitop\u2019s nickel fiber felt may be the key component that unlocks your next level of competitiveness.<\/p>\n<p>\u2014<br \/>\nOqitop New Material Co., Ltd.<br \/>\nSpecialized in advanced metal fiber materials, providing a solid foundation for global energy storage innovation.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-large wp-image-6502\" src=\"https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-90-1024x1024.jpg\" alt=\"\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-90-1024x1024.jpg 1024w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-90-300x300.jpg 300w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-90-150x150.jpg 150w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-90-768x768.jpg 768w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-90-12x12.jpg 12w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/3-90.jpg 1254w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/> <img decoding=\"async\" class=\"aligncenter size-large wp-image-6503\" src=\"https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-84-1024x1024.jpg\" alt=\"\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-84-1024x1024.jpg 1024w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-84-300x300.jpg 300w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-84-150x150.jpg 150w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-84-768x768.jpg 768w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-84-12x12.jpg 12w, https:\/\/oqitop.com\/wp-content\/uploads\/2026\/05\/4-84.jpg 1254w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>&nbsp; In a world increasingly driven by clean energy and high\u2011reliability power systems, traditional battery materials are reaching their limits. Researchers and manufacturers are actively searching for new electrode structures that can dramatically improve performance, extend cycle life, and enhance safety\u2014without completely changing the existing battery chemistry. Against this backdrop, Oqitop New Material Co., Ltd.\u2019s [&hellip;]<\/p>","protected":false},"author":1,"featured_media":6506,"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-6497","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/posts\/6497","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/comments?post=6497"}],"version-history":[{"count":1,"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/posts\/6497\/revisions"}],"predecessor-version":[{"id":6507,"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/posts\/6497\/revisions\/6507"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/media\/6506"}],"wp:attachment":[{"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/media?parent=6497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/categories?post=6497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oqitop.com\/fr\/wp-json\/wp\/v2\/tags?post=6497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}