ELECTROCHEMICAL PERFORMANCE OF MICROBATTERIES USING CRYSTALLIZEDLiCoO2AND NANO-CRYSTALLINELiMn2O4FILM AS CATHODES AND AMORPHOUSLiNiVO4AS ANODE

S. B. Tang, M. O. Lai () and L. Lu
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S. B. Tang: Department of Mechanical Engineering, National University of Singapore, Singapore 117576, Singapore
M. O. Lai: Department of Mechanical Engineering, National University of Singapore, Singapore 117576, Singapore
L. Lu: Department of Mechanical Engineering, National University of Singapore, Singapore 117576, Singapore

Surface Review and Letters (SRL), 2008, vol. 15, issue 01n02, 169-174

Abstract: Three different electrode films of highly crystallizedLiCoO2, nano-crystallineLiMn2O4as cathode and amorphousLiNiVO4as anode were grown on stainless steel substrates by pulsed laser deposition. Microbatteries were assembled using liquid electrode ofLiPF6. The microbatteries were electrochemically tested by charge/discharge cycling and cyclic voltammetry. BothLiCoO2/LiPF6/LiNiVO4andLiMn2O4/LiPF6/LiNiVO4cells showed smooth charge/discharge curves. Although the cells faced a fast capacity loss in the first 10 cycles, about 20 μA/cm2μm of discharge capacity was attainable after 20 cycles.

Keywords: Microbatteries; LiCoO2; LiMn2O4; LiNiVO4; capacity; pulsed laser deposition (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1142/S0218625X08011160

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