New cathode materials for rechargeable Mg batteries: fast Mg ion transport and reversible copper extrusion in CuyMo6S8 compounds
- 5 September 2007
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Chemical Communications
- No. 41,p. 4212-4214
- https://doi.org/10.1039/b710743a
Abstract
We report on a discovery of fast cathode materials, ternary Chevrel phases (CPs), CuyMo6S8, for rechargeable magnesium batteries; the related electrochemical process displays a unique coupling between reversible Mg insertion, and Cu extrusion/reinsertion; this coupling results in an entirely new intercalation mechanism which combines the total chemical reversibility of the electrochemical reaction of MgxCuyMo6S8 with irreversibility of its separate stages once Cu extrusion stage is reached (in MgxCuyMo6S8: 0.5x + y > 4).Keywords
This publication has 8 references indexed in Scilit:
- Phase Diagram of Mg Insertion into Chevrel Phases, MgxMo6T8 (T = S, Se). 1. Crystal Structure of the SulfidesChemistry of Materials, 2006
- Cu1.1V4O11: A New Positive Electrode Material for Rechargeable Li BatteriesChemistry of Materials, 2004
- Phase transitions and diffusion kinetics during Mg2+- and Li+-ion insertions into the Mo6S8 chevrel phase compound studied by PITTElectrochimica Acta, 2004
- Alkyl Group Transmetalation Reactions in Electrolytic Solutions Studied by Multinuclear NMROrganometallics, 2004
- A comparative study of Mg2+ and Li+ ion insertions into the Mo6S8 Chevrel phase using electrochemical impedance spectroscopyJournal of Electroanalytical Chemistry, 2004
- A reversible copper extrusion–insertion electrode for rechargeable Li batteriesNature Materials, 2003
- Prototype systems for rechargeable magnesium batteriesNature, 2000
- Chemical-Potential Measurements and Phase Diagram of a Pseudoternary Solid:Physical Review Letters, 1985