The effect of CoSn/CoSn2 phase ratio on the electrochemical behaviour of Sn40Co40C20 ternary alloy electrodes in lithium cells
✍ Scribed by J. Hassoun; P. Ochal; S. Panero; G. Mulas; C. Bonatto Minella; B. Scrosati
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 988 KB
- Volume
- 180
- Category
- Article
- ISSN
- 0378-7753
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✦ Synopsis
Samples of a SnCoC-based electrodes, all having the molar composition Sn 40 Co 40 C 20 , but differing by the high energy ball milling synthesis conditions, have been tested in lithium cells. The investigation was carried out by using a series of complementary techniques, including potentiodynamic cycling with galvanostatic acceleration, galvanostatic charge-discharge cycling and impedance spectroscopy. The results confirmed the high capacity delivery of this type of ternary electrodes but also revealed that their electrochemical behaviour is influenced by the relative abundance of the nanosized domains of CoSn and CoSn 2 in their structure.