Preparation and electrochemical characterization of lithium cobalt oxide nanoparticles by modified sol-gel method

Khomane, Ramdas B. ; Agrawal, Amit C. ; Kulkarni, B. D. ; Gopukumar, S. ; Sivashanmugam, A. (2008) Preparation and electrochemical characterization of lithium cobalt oxide nanoparticles by modified sol-gel method Materials Research Bulletin, 43 (8-9). pp. 2497-2503. ISSN 0025-5408

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.materresbull.2007.08.033

Abstract

Uniformly distributed nanoparticles of LiCoO2 have been synthesized through the simple sol-gel method in presence of neutral surfactant (Tween-80). The powders were characterized by X-ray diffractometry, transmission electron microscopy and electrochemical method including charge-discharge cycling performance. The powder calcined at a temperature of 900 °C for 5 h shows pure phase layered LiCoO2. The results show that the particle size is reduced in presence of surfactant as compared to normal sol-gel method. Also, the sample prepared in presence of surfactant and calcined at 900 °C for 5 h shows the highest initial discharge capacity (106 mAh g-1) with good cycling stability as compared to the sample prepared without surfactant which shows the specific discharge capacity of 50 mAh g-1.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:A. Layered Compounds; B. Sol-gel Chemistry; B; Intercalation Reactions; C. X-ray Diffraction; D. Electrochemical Properties
ID Code:85702
Deposited On:05 Mar 2012 14:03
Last Modified:05 Mar 2012 14:03

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