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Acta Physico-Chimica Sinica  2008, Vol. 24 Issue (09): 1563-1567    DOI: 10.3866/PKU.WHXB20080906
Article     
Electrochemical Performance of LiMn2O4 Thin Film Electrode Fabricated by Ink-Jet Printing Technique
HUANG Jun-Jie; JIANG Zhi-Yu
Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
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Abstract  Under ultrasonic andusingthe additive LomarDas dispersant, the printing“ink”can be prepared with LiMn2O4, which was synthesized through a sol-gel method. Through an ink-jet printing process, thin film LiMn2O4 electrode with thickness of about 1.8 μm was fabricated successfully. XRD, TG-DTA, SEM, electrochemical impedance spectrum, CV, and charge/discharge tests were used to characterize the LiMn2O4 nano particles and LiMn2O4 thin film electrode. It was found that LiMn2O4 filmelectrode could be charge-discharged at relative high current rate and kept stable. At the current density of 100 μA·cm-2 (2C), the thin film LiMn2O4 electrode had an initial capacity of 109 mAh·g-1, after 54 cycles the discharge capacity remained 97.4%, as a value of 105 mAh·g-1. This good electrochemical behavior of LiMn2O4 thin filmelectrode was mainly due to the thin thickness of electrode and well-crystallized LiMn2O4 nano particles.

Key wordsLiMn2O4 nano-particle      Ink-jet printing technique      Thin filmelectrode      Lithiumion battery     
Received: 30 January 2008      Published: 09 July 2008
MSC2000:  O646  
Corresponding Authors: JIANG Zhi-Yu     E-mail: zyjiang@fudan.ac.cn
Cite this article:

HUANG Jun-Jie; JIANG Zhi-Yu. Electrochemical Performance of LiMn2O4 Thin Film Electrode Fabricated by Ink-Jet Printing Technique. Acta Physico-Chimica Sinica, 2008, 24(09): 1563-1567.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20080906     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2008/V24/I09/1563

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