Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 563, Issue -, Pages 186-191Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.02.115
Keywords
Silicon microchannel plate; Lithium-ion batteries; Anode; Three-dimensional microbatteries
Categories
Funding
- Shanghai Natural Sciences Foundation [11ZR1411000]
- Shanghai Fundamental Key Project [11JC1403700, 10JC1404600]
- PCSIRT
- China NSFC [61176108, 60990312, 61076060]
- Hong Kong Research Grants Council (RGC) General Research Funds (GRF) [CityU 112510, 112212]
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Using lithium foils as the counter electrodes and Ni-coated Si microchannel plates (Si-MCPs) as the matrix and active materials, half-cells were fabricated and tested. Galvanostatic charge-discharge (C-D) measurements were conducted at 100 mA g (1) between 0.05 and 1.5 V. By decreasing the Li insertion/extraction level, the Ni/Si-MCP anode retained the reversible discharge capacity of 1000 mA h g (1) for 80 cycles and 500 mA h g (1) for 104 cycles, respectively. The morphology of the Ni/Si-MCP after the galvanostatic cycles was examined by scanning electron microscope (SEM). Based on the results of electrochemical impedance spectroscopy (EIS) and energy-dispersive X-ray spectroscopy (EDS), the mechanism of electrode fading was investigated and described. (C) 2013 Elsevier B.V. All rights reserved.
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