典型文献
Stabilized cobalt-free lithium-rich cathode materials with an artificial lithium fluoride coating
文献摘要:
Iron-substituted cobalt-free lithium-rich manganese-based materials, with advantages of high specific capacity, high safety, and low cost, have been considered as the potential cathodes for lithium ion batteries. However, challenges, such as poor cycle stability and fast voltage fade during cycling under high potential, hinder these materials from commercialization. Here, we developed a method to directly coat LiF on the particle surface of Li1.2Ni0.15Fe0.1Mn0.55O2. A uniform and flat film was successfully formed with a thickness about 3 nm, which can effect-ively protect the cathode material from irreversible phase transition during the deintercalation of Li+. After surface coating with 0.5wt% LiF, the cycling stability of Li1.2Ni0.15Fe0.1Mn0.55O2 cycled at high potential was significantly improved and the voltage fade was largely suppressed.
文献关键词:
中图分类号:
作者姓名:
Wei Liu;Jinxing Li;Hanying Xu;Jie Li;Xinping Qiu
作者机构:
Key Laboratory of Organic Optoelectronics and Molecular Engineering,Department of Chemistry,Tsinghua University,Beijing 100084,China;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China
文献出处:
引用格式:
[1]Wei Liu;Jinxing Li;Hanying Xu;Jie Li;Xinping Qiu-.Stabilized cobalt-free lithium-rich cathode materials with an artificial lithium fluoride coating)[J].矿物冶金与材料学报,2022(05):917-924
A类:
15Fe0,55O2
B类:
Stabilized,cobalt,free,lithium,rich,materials,artificial,fluoride,coating,Iron,substituted,manganese,advantages,high,specific,capacity,safety,low,cost,have,been,considered,potential,cathodes,batteries,However,challenges,such,poor,stability,fast,voltage,fade,during,cycling,under,hinder,these,from,commercialization,Here,developed,method,directly,LiF,particle,surface,Li1,2Ni0,1Mn0,uniform,flat,film,was,successfully,formed,thickness,about,which,effect,ively,protect,irreversible,phase,transition,deintercalation,Li+,After,5wt,cycled,significantly,improved,largely,suppressed
AB值:
0.571824
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