Electrochemical characteristics of ordered mesoporous carbon used as electrode material in Li-ion battery


Autoria(s): Xing, W; Zhang, Y; Yan, ZF; Lu, GQ
Contribuinte(s)

Kexue Chubanshe

Data(s)

01/01/2005

Resumo

Ordered mesoporous carbon CMK-5 was comprehensively tested for the first time as electrode materials in lithium ion battery. The surface morphology, pore structure and crystal structure were investigated by Scanning Electronic Microscopy (SEM), N-2 adsorption technique and X-ray diffraction (XRD) respectively. Electrochemical properties of CMK-5 were studied by galvanostatic cycling and cyclic voltammetry, and compared with conventional anode material graphite. Results showed that the reversible capacity of CMK-5 was 525 mAh/g at the third charge-discharge cycle and that CMK-5 was more compatible for quick charge-discharge cycling because of its special mesoporous structure. Of special interest was that the CMK-5 gave no peak on its positive sweep of the cyclic voltammetry, which was different from all the other known anode materials. Besides, X-ray photoelectron spectroscopy (XPS) and XRD were also applied to investigate the charge-discharge characteristics of CMK-5.

Identificador

http://espace.library.uq.edu.au/view/UQ:78653

Idioma(s)

chi

Publicador

Science China Press

Palavras-Chave #Chemistry, Multidisciplinary #Mesoporous Carbon #Anode Material #Lithium-ion Battery #Sei Film #Lithium Secondary Batteries #Pyrolyzed Sugar Carbons #Anode Materials #Intercalation #Oxide #Performance #Nanotubes #C1 #291899 Interdisciplinary Engineering not elsewhere classified #620107 Cotton
Tipo

Journal Article