Pr6o11 Interfacial Engineering Towards High-Performance Ncm523

Medientyp: E-Book

Titel: Pr6o11 Interfacial Engineering Towards High-Performance Ncm523

Beteiligte: Zhao, Guiying [Verfasser:in]; Huang, Yongcong [Verfasser:in]; Zhang, Weijun [Verfasser:in]; Gao, Jingguo [Verfasser:in]; Xu, Chenjie [Verfasser:in]; Shen, Liao [Verfasser:in]; Lv, Peiwen [Verfasser:in]; Lin, Yingbin [Verfasser:in]; Huang, Zhigao [Verfasser:in]; Li, Jiaxin [Verfasser:in]

Erschienen: [S.l.]: SSRN, [2022]

Umfang: 1 Online-Ressource (19 p)

Sprache: Englisch

DOI: 10.2139/ssrn.4016019

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Beschreibung: To develop an efficient method to achieve fast discharge/charge ability and long-cycle life for NCM cathodes, is still an urgent and challenging problem for further effectively improving the overall performance of lithium ion battery (LIB). Herein, NCM523 uniformly modified by Pr 6 O 11 nanoparticles (NCM-Pr 6 O 11 ) were prepared by simple liquid-phase mixing supported with annealing method. Pr 6 O 11 interface engineering for NCM-Pr 6 O 11 composites can significantly enhance the electronic conductivity, boost the ion transport kinetics, improve the interface compatibility with electrolyte, and then inhibit the structural destruction of secondary particles of NCM, making the composite with obviously enhanced LIB performance including cycle stability, energy density and thermal safety. Especially, the capacity retention of NCM-b samples tested at 25 and 60 o C can deliver 77.4% and 78.5% respectively, being much higher than those of pure NCM electrodes. Moreover, the assembled NCM-b//Graphite full-cells show improved thermal safety and excellent LIB performance even with a capacity retention of 86.1% after 1000 cycles. Therefore, such simple modification strategy for NCM cathodes provides a promising enlightenment for the production of high-energy density LIBs

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