Journal
ELECTROCHIMICA ACTA
Volume 217, Issue -, Pages 283-291Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.09.088
Keywords
Li-ion battery; Si wires; pre-lithiated silicon; cyclic voltammetry; battery potential
Categories
Funding
- DFG [FO 258/17-1]
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Silicon microwires as anodes for Li-ion batteries may show good cycling performance over 100 cycles as anodes for Lithium ion batteries without significant capacity losses. The life time of the anode, however, strongly depends on the way the battery is charged. Overcharging or undercharging may have severe negative consequences. This paper studies with the study of the operational voltage range of Si microwire anodes and its dependence on the dimensions of the wires. Cyclic voltammetry is used to identify the potentials for the different lithiation/delithiation events, while a modified cyclic voltammetry technique is used to study the dynamics of those processes. Specially prepared anodes with Si wires of different lengths and widths were used for the study. (C) 2016 Elsevier Ltd. All rights reserved.
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