Assessing the Electrochemical Performance of Different Nanostructured CeO2 Samples as Anodes for Lithium-Ion Batteries

Applied Sciences

Benjamín Solsona¹  Francisco J. Llopis¹  Inmaculada Álvarez-Serrano²  María Luisa López²  Farah Lamara³  Nedjemeddine Bounar³  María Pilar Pico⁴  Daniel Alonso-Domínguez⁴ 

[1]Departament d’Enginyeria Química, ETSE, Universitat de València, Av. Universitat s/n, Burjassot, 46100 Valencia, Spain

[2]Departamento Química Inorgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Avda, Complutense s/n, 28040 Madrid, Spain

[3]LIME Laboratory, University M.S.B.Y of Jijel, B.P. 98, Ouled Aissa, Jijel 18000, Algeria

[4]SEPIOL, SA, Polígono Miralcampo, Crta, Nacional II Madrid-Barcelona, Km38.6, Azuqueca de Henares, 19200 Guadalajara, Spain

关键词: anode materials;    cerium oxide;    lithium-ion batteries;    nanostructured ceria;   

DOI  :  10.3390/app12010022

来源: DOAJ

【 摘 要 】

In this work, six samples of CeO₂ are successfully prepared by diverse synthesis routes leading to different microstructures regarding both morphology and particle size. The structural and microstructural characteristics presented by the samples and their influence on the electrochemical response of the prepared anodes are analyzed. In particular, the Ce-CMK3 sample, synthesized from a mesoporous carbon obtained through a CMK3 silica template, displays an enhanced electrochemical response. Thus, capacity values of ~220 mA h g⁻¹ are obtained at a current rate of 0.155 A g⁻¹ after 50 cycles and an excellent cyclability at intermediate current densities. On the other hand, it is observed that the capacity values are satisfactorily recovered at 0.31 A g⁻¹, displaying ~100 mA h g⁻¹ after 550 cycles and efficiencies close to 100%. The electrochemical performance is interpreted considering the microstructural peculiarities of this anode, which are deeply analyzed.

【 授权许可】

Unknown