Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 5, Issue 2, Pages 120-123Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/S1388-2481(02)00556-8
Keywords
battery; three-dimensional microbattery; energy storage; finite-element simulation; current distribution
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Batteries based on three-dimensional (3-D) microstructures are shown to offer significant advantages (e.g., small areal footprint, short diffusion lengths) in comparison to thin film devices for powering microelectromechanical systems and miniaturized electronic devices. A key limitation in all 3-D periodic cell architectures is the inherent non-uniform current density. Finite-element simulations of the current and potential in several cathode/anode array configurations are presented to illustrate the difficulty in obtaining relatively uniform current densities in 3-D batteries based on periodic elements. (C) 2003 Elsevier Science B.V. All rights reserved.
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