Anchored oxygen-retardant phase stabilizing high-voltage Ni-rich cathode materials

Anchored oxygen-retardant phase stabilizing high-voltage Ni-rich cathode materials | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Anchored oxygen-retardant phase stabilizing high-voltage Ni-rich cathode materials Guoxiu Wang, Ziqi Liu, Yiming Zhang, Yong Chen, Meng Yao, Yangyang Wang, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6678222/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Ni-rich LiNixCoyMn1−x−yO2 (x ≥ 0.9) cathode materials (NCMs) have been considered promising for next-generation Li-ion batteries owing to their high-energy density. However, their practical application is hindered by gas evolution and rapid capacity degradation, primarily caused by irreversible oxygen release and structural instability. Herein, a facile one-step anchoring strategy is proposed to overcome this challenge by engineering a precisely tailored dual-architecture LiNi0.9Co0.05Mn0.05O2 (DA-NCM). It enables perovskite-phase La4LiNiO8 coating on the cathode surface, stabilized by inert La2Mo2O9 phase via enhanced La–O bond pinning effect. This dual oxygen-retardant architecture effectively regulates oxygen activity, suppresses structural degradation and interfacial parasitic reactions, achieving robust oxygen encapsulation and structural stabilization. Consequently, DA-NCM cathodes exhibit excellent capacity retention of 95.7% at 4.3 V and 93.6% at 4.5 V after 200 cycles and remarkable stability even at a high temperature (50 ℃) and high voltage (4.5 V). This precision design of dual architecture provides a new pathway for developing high-energy-density cathode materials with long cycle life. Physical sciences/Energy science and technology/Energy storage/Batteries Physical sciences/Nanoscience and technology/Nanoscale materials/Structural properties Ni-rich cathode anchored oxygen-retardant phase oxygen emission structural stability high voltage Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SupplementaryInformation0516.pdf Supplementary Information Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6678222","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":461902820,"identity":"a0fab5c3-fb15-4103-9141-5841d069c2ac","order_by":0,"name":"Guoxiu 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