{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T10:48:29Z","timestamp":1792061309649,"version":"4.4.0"},"reference-count":56,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T00:00:00Z","timestamp":1792022400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T00:00:00Z","timestamp":1792022400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Energy Materials"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Achieving high\u2010energy\u2010density and long\u2010term cycling stability in Mn\u2010redox\u2010based cathodes is a critical step toward advancing Ni\u2010 and Co\u2010free Li\u2010ion chemistries to diversify supply chains and lower battery costs. Here, we demonstrate an unusually high performance benchmark for Mn\u2010redox cathodes using near\u2010micron single\u2010crystalline \u03b4\u2010phase cation\u2010disordered rocksalt (\u03b4\u2010DRX), derived from Mn\u2010rich DRX, delivering \u2248640\u00a0Wh kg\n                    <jats:sup>\u22121<\/jats:sup>\n                    with \u224897% capacity retention over 400 cycles. The very high energy density and cycle life were achieved by using a high Mn content, to suppress oxygen redox activity, and careful control of the synthesis parameters to tune single crystal particle size. Using high\u2010throughput automated electron microscopy, we identify interparticle compositional heterogeneity present in the early stage of phase\u2010pure DRX formation as the origin of orthorhombic LiMnO\n                    <jats:sub>2<\/jats:sub>\n                    impurity formation during cooling, a finding that rationalizes the long high\u2010temperature dwell times required and the associated particle coarsening in conventional synthesis. We demonstrate that an accelerated cooling strategy kinetically suppresses localized impurity formation, reducing long high\u2010temperature exposure, and enables downsizing of single\u2010crystalline Mn\u2010rich DRX particles to the near\u2010micron regime (D50 = 1.5\u00a0\u00b5m). This work provides a mechanistic basis for particle\u2010size control in Mn\u2010rich DRX synthesis, and presents \u03b4\u2010DRX as a stable, sustainable, high\u2010performance, Ni\u2010 and Co\u2010free cathode material.\n                  <\/jats:p>","DOI":"10.1002\/aenm.71701","type":"journal-article","created":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T10:15:07Z","timestamp":1792059307000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Near\u2010Micron Single\u2010Crystalline Mn\u2010Rich Cathodes With Exceptional Cycling Stability"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2868-5649","authenticated-orcid":false,"given":"Eunryeol","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Materials Science and Engineering University of California  Berkeley California USA"},{"name":"Materials Sciences Division Lawrence Berkeley National Laboratory  Berkeley California USA"},{"name":"Department of Chemical Engineering Chungbuk National University  Cheongju Chungbuk Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6804-5772","authenticated-orcid":false,"given":"Tucker","family":"Holstun","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering University of California  Berkeley California USA"},{"name":"Materials Sciences Division Lawrence Berkeley National Laboratory  Berkeley California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3000-2555","authenticated-orcid":false,"given":"Tara","family":"Mishra","sequence":"additional","affiliation":[{"name":"Materials Sciences Division Lawrence Berkeley National Laboratory  Berkeley California USA"},{"name":"National Center for Electron Microscopy, Molecular Foundry Lawrence Berkeley National Laboratory  Berkeley California USA"},{"name":"Max Planck Institute For Solid State Research  Stuttgart Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3205-8798","authenticated-orcid":false,"given":"Maciej","family":"Mo\u017adzierz","sequence":"additional","affiliation":[{"name":"Materials Sciences Division Lawrence Berkeley National Laboratory  Berkeley California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-8504-5802","authenticated-orcid":false,"given":"Shilong","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering University of California  Berkeley California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7752-680X","authenticated-orcid":false,"given":"Yanbao","family":"Fu","sequence":"additional","affiliation":[{"name":"Energy Technologies &amp; Systems Division Lawrence Berkeley National Laboratory  Berkeley California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6762-9976","authenticated-orcid":false,"given":"Peter","family":"Ercius","sequence":"additional","affiliation":[{"name":"National Center for Electron Microscopy, Molecular Foundry Lawrence Berkeley National Laboratory  Berkeley California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander","family":"Pattison","sequence":"additional","affiliation":[{"name":"National Center for Electron Microscopy, Molecular Foundry Lawrence Berkeley National Laboratory  Berkeley California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5058-6757","authenticated-orcid":false,"given":"Satoshi","family":"Hiroi","sequence":"additional","affiliation":[{"name":"Faculty of Materials for Energy Shimane University  Matsue Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3134-512X","authenticated-orcid":false,"given":"Koji","family":"Ohara","sequence":"additional","affiliation":[{"name":"Faculty of Materials for Energy Shimane University  Matsue Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5596-9148","authenticated-orcid":false,"given":"Vincent","family":"Battaglia","sequence":"additional","affiliation":[{"name":"Energy Technologies &amp; 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