Mitigating Internal Gliding of a High-Voltage O3-Type Cathode via Na-Site Doping with High Ionic Potential Cations
Shuai ZhangCentral South UniversityYì WángCentral South UniversityZhangyi XuCentral South UniversityZhengwei XuCentral South UniversityZhili WangCentral South UniversityHuajun GuoCentral South UniversityLi XCentral South UniversityWenjie PengCentral South UniversityHui DuanCentral South UniversityGuangchao LiCentral South UniversityXiaobo ZhengCentre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of ScienceZhongchen MaZhongye Changtian International Engineering Co, LtdOdiljon AbdurakhmonovTashkent Institute of Chemical TechnologyUtkirjon SharopovPhysical-Technical InstituteHala T. HandalInorganic Chemistry Department, National Research Center (NRC), 33 El Buhouth St., Dokki, Giza, 12622, EgyptWang Hay KanChinese Academy of SciencesGuochun YanCentral South University
ABI
Аннотация
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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