Mitigating Internal Gliding of a High-Voltage O3-Type Cathode via Na-Site Doping with High Ionic Potential Cations
Shuai ZhangCentral South UniversityYì WángEngineering Research Center of the Ministry of Education for Advanced Battery MaterialsZhangyi XuCentral South UniversityZhengwei XuCentral South UniversityZhili WangCentral South UniversityHuajun GuoEngineering Research Center of the Ministry of Education for Advanced Battery MaterialsLi XEngineering Research Center of the Ministry of Education for Advanced Battery MaterialsWenjie PengHunan Provincial Key Laboratory of Nonferrous Value-Added MetallurgyHui DuanCentral South UniversityGuangchao LiCentral South UniversityXiaobo ZhengClean Energy (United States)Zhongchen MaZhongye Changtian International Engineering Co, LtdOdiljon AbdurakhmonovTashkent Institute of Chemical TechnologyUtkirjon SharopovUzbekistan Academy of SciencesHala T. HandalInorganic Chemistry Department, National Research Center (NRC), 33 El Buhouth St., Dokki, Giza, 12622, EgyptWang Hay KanSpallation Neutron Source Science CenterGuochun YanHunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy
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doping enables kilogram-scale production, and the assembled 18650 cylindrical cell retains 89.9% capacity after 500 cycles. Mechanistically, strong ion-oxygen interactions stiffen the Na layer lattice, stabilizing the framework during Na (de)intercalation and suppressing (003) gliding. This work establishes high ionic potential Na-site doping as a broadly applicable design principle for durable high-voltage O3 cathodes.
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