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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 16    No. 2    April 2006

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Thin-film lithium-ion battery derived from Li1.3Al0.3Ti1.7(PO4)3 sintered pellet
XIAO Zhuo-bing(肖卓炳), MA Ming-you(麻明友), WU Xian-ming(吴显明), HE Ze-qiang(何则强), CHEN Shang(陈 上)

College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China

Abstract:Thin-film lithium-ion battery of LiMn2O4/Li1.3Al0.3Ti1.7(PO4)3/LiMn2O4 was fabricated using Li1.3Al0.3Ti1.7(PO4)3 sintered pellet as both substrate and electrolyte. Li1.3Al0.3Ti1.7(PO4)3 sintered pellet was prepared by sol-gel technique, and the thin-film battery was heat-treated by rapid thermal annealing. Phase identification, morphology and electrochemical properties of the components and thin-film battery were investigated by X-ray diffractometry, scanning electron microscopy, electrochemical impedance spectroscopy and galvanostatic charge-discharge experiments. The results show that Li1.3Al0.3Ti1.7(PO4)3 possesses a electrochemical window of 2.4 V and an ionic conductivity of 1.2 10-4 S/cm. With Li1.3Al0.3Ti1.7(PO4)3 sintered pellet as both substrate and solid electrolyte, the fabricated thin-film battery with an open circuit voltage of 1.2V can be easily cycled.

 

Key words: LiMn2O4; Li1.3Al0.3Ti1.7(PO4)3; solid electrolyte; lithium ion battery; thin-film battery; sintered pellet

ISSN 1672-7029
CN 43-1423/U

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