Lithium-sulphur batteries - Binder free carbon nanotubes electrode examined with various electrolytes
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
A new type of electrode for lithium-sulphur batteries is introduced based on vertical-aligned carbon nanotubes (CNTs) grown on a nickel foil without any binder. The electrodes are synthesized by employing a catalyst layer and a CVD process. The CNTs directly synthesized on the Ni current collector are sulphur infiltrated using different approaches and the results are examined by SEM. Furthermore, cycle tests (1.0-3.0 V) with various electrolytes (liquid organic, ionic liquid and solid) are performed. The binder free CNT cathodes contain the highest so far published total ratio of sulphur (90%) in the electrode. Additionally the sulphur mass per cm 2 electrode can be more than three times as high as in regular slurry-based sulphur electrodes, thus doubling the volumetric energy density.
Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | 239-248 |
Seitenumfang | 10 |
Fachzeitschrift | Journal of power sources |
Jahrgang | 2012 |
Ausgabenummer | 213 |
Publikationsstatus | Veröffentlicht - 1 Sept. 2012 |
Peer-Review-Status | Ja |
Schlagworte
Ziele für nachhaltige Entwicklung
ASJC Scopus Sachgebiete
Schlagwörter
- Battery, Binder free, CNT, Ionic liquid, Lithium-sulphur, Solid electrolyte