Layered/Spinel Heterostructured Li-Rich Cathode Materials without Oxygen Loss in Lithium-ion Battery

Layered/Spinel Heterostructured Li-Rich Cathode Materials without Oxygen Loss in Lithium-ion Battery | 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 Research Article Layered/Spinel Heterostructured Li-Rich Cathode Materials without Oxygen Loss in Lithium-ion Battery Shan Xu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3919926/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 Lithium-excess manganese layered oxides, which are commonly described by the chemical formula xLi 2 MnO 3 · (1-x) LiMO 2 (M = Co, Ni, Mn, etc.), are of great importance as cathode materials for rechargeable lithium batteries. A mechanism involving simultaneous Li and O removal is often proposed. Oxygen loss and MnO 2 formation appear when first charging across a voltage plateau at 4.5 V vs Li/Li + , which is bottleneck of industrialization for the resulting security problems. In our recent findings, layered/spinel heterostructured Li-rich material Li 1.2 Ni 0.2 Mn 0.6 O 2 consist of Li 2 MnO 3 , LiNiMnO 2 and LiNi 0.5 Mn 1.5 O 4 without oxygen loss was desired. After assembling it into lithium-ion battery, CV curves have no oxygen evolution peak and no oxygen appears in situ differential electrochemical mass spectrometry (DEMS). According to the first principle, Li + ions in Li 2 MnO 3 de-intercalate then Ni 2+ ions of LiNi 0.5 Mn 1.5 O 4 migrate into the sites when first charging, which avoids the oxygen loss from the collapse of Li 2 MnO 3 . The exist of spinel phase make the phase transition process of circulation stable, which contributed to the high cycling performance for lithium-ion battery (300 and 220 mAh g − 1 after 200th cycles at 0.1 and 0.5C-rate (1C = 250 mA g − 1 )). Li-rich cathode materials oxygen loss high capacity lithium-ion batteries Full Text Additional Declarations No competing interests reported. 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. We do this by developing innovative software and high quality services for the global research community. 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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-3919926","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":270826785,"identity":"9a953f3f-8039-489c-a356-0e6f98f04d6e","order_by":0,"name":"Shan Xu","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAzklEQVRIiWNgGAWjYBACNmbmgw8+VNjwMM5/fIA4LXzsbcmGM86kyTA3pCUQp0WO54yZMG/bYRv2hhwDIh0mkWDGOOMMMw9vw5mPN94w2MnpNhDWkgb0CxuPZGPvZss5DMnGZgcIazkO9AsPj2Ez7zZpHoYDidsIa0lsk+Ztk+CxP8bzjEgtPIfZgFoMeBh7eNiI1MLexgx0WAIP4ww2Y8s5BkT4Rb6Z/yPQ+//tGWcwP7zxpsJOjqAWFCDBQ2TUIGshVccoGAWjYBSMCAAAYBZAJcOssEUAAAAASUVORK5CYII=","orcid":"","institution":"Hubei Wisdom Comprehensive Energy Industry Technology Research Co. , Ltd","correspondingAuthor":true,"prefix":"","firstName":"Shan","middleName":"","lastName":"Xu","suffix":""}],"badges":[],"createdAt":"2024-02-02 06:59:10","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3919926/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3919926/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":56715743,"identity":"91fa289c-fec6-4e79-b0b3-069d5c74ea1a","added_by":"auto","created_at":"2024-05-18 18:46:33","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1012506,"visible":true,"origin":"","legend":"","description":"","filename":"LayeredSpinelHeterostructuredLiRichCathodeMaterialswithoutOxygenLossinLithiumionBattery.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3919926/v1_covered_b566e38c-b562-4b80-8c0d-2b384844f75b.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Layered/Spinel Heterostructured Li-Rich Cathode Materials without Oxygen Loss in Lithium-ion Battery","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Li-rich cathode materials oxygen loss high capacity lithium-ion batteries","lastPublishedDoi":"10.21203/rs.3.rs-3919926/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3919926/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eLithium-excess manganese layered oxides, which are commonly described by the chemical formula xLi\u003csub\u003e2\u003c/sub\u003eMnO\u003csub\u003e3\u003c/sub\u003e\u0026middot; (1-x) LiMO\u003csub\u003e2\u003c/sub\u003e (M\u0026thinsp;=\u0026thinsp;Co, Ni, Mn, etc.), are of great importance as cathode materials for rechargeable lithium batteries. A mechanism involving simultaneous Li and O removal is often proposed. Oxygen loss and MnO\u003csub\u003e2\u003c/sub\u003e formation appear when first charging across a voltage plateau at 4.5 V vs Li/Li\u003csup\u003e+\u003c/sup\u003e, which is bottleneck of industrialization for the resulting security problems. In our recent findings, layered/spinel heterostructured Li-rich material Li\u003csub\u003e1.2\u003c/sub\u003eNi\u003csub\u003e0.2\u003c/sub\u003eMn\u003csub\u003e0.6\u003c/sub\u003eO\u003csub\u003e2\u003c/sub\u003e consist of Li\u003csub\u003e2\u003c/sub\u003eMnO\u003csub\u003e3\u003c/sub\u003e, LiNiMnO\u003csub\u003e2\u003c/sub\u003e and LiNi\u003csub\u003e0.5\u003c/sub\u003eMn\u003csub\u003e1.5\u003c/sub\u003eO\u003csub\u003e4\u003c/sub\u003e without oxygen loss was desired. After assembling it into lithium-ion battery, CV curves have no oxygen evolution peak and no oxygen appears in situ differential electrochemical mass spectrometry (DEMS). According to the first principle, Li\u0026thinsp;+\u0026thinsp;ions in Li\u003csub\u003e2\u003c/sub\u003eMnO\u003csub\u003e3\u003c/sub\u003e de-intercalate then Ni\u003csup\u003e2+\u003c/sup\u003e ions of LiNi\u003csub\u003e0.5\u003c/sub\u003eMn\u003csub\u003e1.5\u003c/sub\u003eO\u003csub\u003e4\u003c/sub\u003e migrate into the sites when first charging, which avoids the oxygen loss from the collapse of Li\u003csub\u003e2\u003c/sub\u003eMnO\u003csub\u003e3\u003c/sub\u003e. The exist of spinel phase make the phase transition process of circulation stable, which contributed to the high cycling performance for lithium-ion battery (300 and 220 mAh g\u003csup\u003e\u0026minus;\u0026thinsp;1\u003c/sup\u003e after 200th cycles at 0.1 and 0.5C-rate (1C\u0026thinsp;=\u0026thinsp;250 mA g\u003csup\u003e\u0026minus;\u0026thinsp;1\u003c/sup\u003e)).\u003c/p\u003e","manuscriptTitle":"Layered/Spinel Heterostructured Li-Rich Cathode Materials without Oxygen Loss in Lithium-ion Battery","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-02-05 11:40:00","doi":"10.21203/rs.3.rs-3919926/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"ca700bfb-35bf-4784-b1c8-13b422af0311","owner":[],"postedDate":"February 5th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-05-18T18:38:25+00:00","versionOfRecord":[],"versionCreatedAt":"2024-02-05 11:40:00","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-3919926","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-3919926","identity":"rs-3919926","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}