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Title: Characterizations of Al-Y thin film composite anode materials for lithium-ion batteries
Authors: Wang, Z.Y. 
Li, Y. 
Lee, J.Y. 
Keywords: Al-Y alloy
Lithium-ion batteries
Magnetron sputtering
Issue Date: Jun-2009
Citation: Wang, Z.Y., Li, Y., Lee, J.Y. (2009-06). Characterizations of Al-Y thin film composite anode materials for lithium-ion batteries. Electrochemistry Communications 11 (6) : 1179-1182. ScholarBank@NUS Repository.
Abstract: Al-Y thin films synthesized by the magnetron sputtering technique were evaluated as a possible anode material for lithium-ion batteries. The optimum composition is Al0.87Y0.13, which delivers an initial capacity of 625 mAh/g and a capacity loss of 23% during the successive 70 cycles. The improved electrochemical performance, especially the cycling ability, could be attributed to the formation of a hybrid composite where Al nanocrystals are homogenously dispersed in a conductive amorphous Al-Y matrix. This result shows that nanostructural composites could be a way to address the inherent problems with Al-based lithium storage compounds. © 2009 Elsevier B.V. All rights reserved.
Source Title: Electrochemistry Communications
ISSN: 13882481
DOI: 10.1016/j.elecom.2009.03.043
Appears in Collections:Staff Publications

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