Enhanced Cycling Performance of the LiNiO2 Cathode in Li-Ion Batteries Enabled by Nb-Based Surface Coating

被引：0

作者：

Nunes, Barbara Nascimento ^{[1
]}

Karger, Leonhard ^{[1
]}

Zhang, Ruizhuo ^{[1
]}

Kondrakov, Aleksandr ^{[1
,2
]}

Brezesinski, Torsten ^{[1
]}

机构：

[1] Karlsruhe Inst Technol KIT, Inst Nanotechnol, Battery & Electrochem Lab BELLA, Kaiserstr 12, D-76131 Karlsruhe, Germany

[2] BASF SE, Carl Bosch Str 38, D-67056 Ludwigshafen, Germany

来源：

CHEMSUSCHEM | 2024年

关键词：

Interfaces; Li-ion battery; Ni-rich cathode; Niobium; Protective coating; LAYERED OXIDE CATHODES; LITHIUM;

D O I：

10.1002/cssc.202402202

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Lithium nickel oxide (LNO) is a promising cathode candidate in various next-generation battery technologies. To increase its stability, doping and surface coating have become key strategies. Among various elements, niobium stands out for its dual role as an effective dopant and the advantages of its oxide phases as coatings. In this study, we explore Nb-based coating of LNO, utilizing methods that minimize or eliminate solvent use. Additionally, the coated samples were treated at two different temperatures to study their effect on properties and electrochemical performance. Our results demonstrate that the coating process strongly affects the cell cyclability and further highlight the potential of Nb-based protective coatings in enhancing LNO as a cathode active material for application in high-energy-density Li-ion batteries.

引用

页数：9

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