A Non-Aqueous Asymmetric Cell with a Ti2C-Based Two-Dimensional Negative Electrode
- 1 January 2012
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 159 (8), A1368-A1373
- https://doi.org/10.1149/2.003208jes
Abstract
A new MXene phase, Ti2C, obtained by aluminum extraction from Ti2AlC and exfoliation of the reaction product, was electrochemically studied vs. Lithium. Li-ions insertion into the 2-D structure was characterized by in situ XRD measurements. Additional electrochemical kinetic characterizations of Ti2C, using a cavity micro-electrode, showed that the electrochemical reactions involve two different phenomena: one diffusion-limited, the other not. A Ti2C/activated carbon asymmetric cell was assembled to highlight the high rate performance of the MXene. The cell was cycled between 1.0 V and 3.5 V, and showed good capacity retention during 1000 galvanostatic charge/discharge cycles at rates up to 10C.Keywords
This publication has 32 references indexed in Scilit:
- Recent Advances in Understanding the Capacitive Storage in Microporous CarbonsFuel Cells, 2010
- High-Rate Electrochemical Capacitors Based on Ordered Mesoporous Silicon Carbide-Derived CarbonACS Nano, 2010
- Tailoring the Pore Alignment for Rapid Ion Transport in Microporous CarbonsJournal of the American Chemical Society, 2010
- Solvent effect on the ion adsorption from ionic liquid electrolyte into sub-nanometer carbon poresElectrochimica Acta, 2009
- Materials for electrochemical capacitorsNature Materials, 2008
- Relation between the Ion Size and Pore Size for an Electric Double-Layer CapacitorJournal of the American Chemical Society, 2008
- Building better batteriesNature, 2008
- Nanostructured materials for advanced energy conversion and storage devicesNature Materials, 2005
- Influence of the solvent properties on the characteristics of a double layer capacitorJournal of Power Sources, 2004
- Electrochemical SupercapacitorsPublished by Springer Science and Business Media LLC ,1999