| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Jumas, J. -C.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (1/1 displayed)
Places of action
| Organizations | Location | People |
|---|
article
Tin dispersed in an oxide matrix as negative electrode material for Li-ion batteries
Abstract
This paper deals with new tin-based composite β-Sn/(CaSiO <SUB>3</SUB>) <SUB>0.4</SUB> negative electrode materials for Li-ion batteries. The nature of the oxide matrix and of dispersed tin particles has been investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) coupled with energy dispersion spectroscopy (EDS) and Mössbauer spectroscopy by both transmission (TMS) and backscattering (CEMS) mode for bulk and interface characterizations. The electrochemical behaviour of the composite has been studied during Li-reaction processes. Electrochemical investigation and Mössbauer data analyses suggest the formation of Li <SUB>7</SUB>Sn <SUB>2</SUB> during Li reaction. The reversible mechanism is based on cycling between β-Sn and Li <SUB>7</SUB>Sn <SUB>2</SUB>. An interface composed of CaSn <SUP>IV</SUP>SiO <SUB>5</SUB> and a Sn <SUP>II</SUP> species between tin particles dispersed in the CaSiO <SUB>3</SUB> matrix is responsible of the irreversible capacity observed in this composite during the first discharge.