Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 10, Issue 10, Pages 1467-1470Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.07.032
Keywords
Aluminium; Electrodeposition; Ionic liquid; Three-dimensional microbattery
Categories
Funding
- European Commission
- ALISTORE Network of Excellence
- Swedish Research Council
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Electrode position of aluminium within an alumina nano-structured template, for use as high surface area current collectors in Li-ion microbatteries, was investigated. The aluminium electrodeposition was carried out in the ionic liquid 1-ethyl-3-methylimidazolium chloride: aluminium chloride (1:2 ratio). First the aluminium electrodeposition process was confirmed by combined cyclic voltammetry and electrochemical quartz crystal microbalance measurements. Then, aluminium was electrodeposited under pulsed-potential conditions within ordered alumina membranes. A careful removal of the alumina template unveiled free standing arrays of aluminium nano-rods. The nano-columns shape and dimensions are directly related to the template dimensions. To our knowledge, this is the first time that direct electrodeposition of aluminium nano-pillars onto an aluminium, substrate is reported. (c) 2008 Elsevier B.V. All rights reserved.
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