Sulfur-Containing Molecules Grafted on Carbon Nanotubes as Highly Cyclable Cathodes for Lithium/Organic Batteries

Abstract : Lithium/organic and lithium/sulfur batteries have attracted great interest lately due to their high theoretical specific capacity and potential low cost. However, two major roadblocks currently prevent industrial development of these kind batteries: (i) the progressive dissolution of active material in the electrolyte which hinders cyclability of the devices and; (ii) the electrical insulating nature of organic or sulfur materials. In this work, we show an elegant solution to solve both the conductivity and dissolution issues. We covalently functionalized multi‐walled carbon nanotubes (MWNTs) with electrochemically active thiolated molecules. The MWNTs insure a well distributed electronic conductivity inside the positive electrode and serve as a support for a covalent immobilization of the thiolated active species. Compared to electrodes formed by simply mixing carbon nanotubes with thiol‐containing molecules, covalently functionalized MWNT materials present an excellent stability over prolonged cycling and a promising specific capacity, in the range of 100 mAh·gelectrode‐1, i.e. including carbon and current collector masses.
Type de document :
Article dans une revue
ChemElectroChem, Weinheim : Wiley-VCH, 2018, 〈10.1002/celc.201700970〉
Domaine :
Liste complète des métadonnées

https://hal-cea.archives-ouvertes.fr/cea-01784975
Contributeur : Serge Palacin <>
Soumis le : vendredi 4 mai 2018 - 07:00:27
Dernière modification le : dimanche 6 mai 2018 - 01:12:02

Identifiants

Citation

Gaëlle Charrier, Hanine Kamaleddine, Céline Barchasz, Renaud Cornut, Bruno Jousselme, et al.. Sulfur-Containing Molecules Grafted on Carbon Nanotubes as Highly Cyclable Cathodes for Lithium/Organic Batteries. ChemElectroChem, Weinheim : Wiley-VCH, 2018, 〈10.1002/celc.201700970〉. 〈cea-01784975〉

Partager

Métriques

Consultations de la notice

63