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Poster communications

Functionalized carbon nanotubes fir Lithium-Sulphur and Lithium-Organic batteries

H Kamaleddine 1, * Gaëlle Charrier 1 C. Barchasz 2 R. Cornut 1 B. Jousselme 1 S. Campidelli 1 
* Corresponding author
1 LICSEN - Laboratoire Innovation en Chimie des Surfaces et NanoSciences
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
Abstract : Lithium batteries are among the most promising systems for electrochemical energy storage. However, their capacity and cost-efficiency have to be improved for further applications, for instance in electric vehicles. Lithium/organic and lithium/sulfur batteries offer an interesting alternative to the classical Li-ion systems 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. Here, we develop a new positive electrode material avoiding the dissolution of the active material in the electrolyte upon cycling, by grafting new diazonium derivatives containing active disulfide groups onto multi-walled carbon nanotubes (MWNTs). 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·g$_{electrode}^{-1}$ , i.e. including carbon and current collector masses.
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Poster communications
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Submitted on : Wednesday, October 30, 2019 - 4:28:06 PM
Last modification on : Tuesday, January 4, 2022 - 5:17:05 AM


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  • HAL Id : cea-02340083, version 1


H Kamaleddine, Gaëlle Charrier, C. Barchasz, R. Cornut, B. Jousselme, et al.. Functionalized carbon nanotubes fir Lithium-Sulphur and Lithium-Organic batteries. Annual meeting GDR Graphene and Co, Oct 2018, Sète, France. ⟨cea-02340083⟩



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