Electrochemical lithium insertion into a poly(3,4-ethylenedioxythiophene)PEDOT/V2O5 nanocomposite - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Power Sources Année : 2002

Electrochemical lithium insertion into a poly(3,4-ethylenedioxythiophene)PEDOT/V2O5 nanocomposite

Résumé

Ananocomposite comprised of conductive poly(3,4-ethylene dioxythiophene)PEDOT chains interleaved between the layers of crystalline V2O5 powder has been synthesized by direct in situ oxidation. The interlayer spacing of V2O5 expands from 4.32 to 13.84 Å and this interlayer separation is consistent with the existence of a monolayer of PEDOT in the V2O5 framework. The nanocomposite is coupled with a large-area Li foil counter electrode and a Li wire reference electrode in 1 M LiClO4 in a mixture of ethylene and dimethylcorbonate (50/50 by volume), the discharge capacity is ≥300 m Ah g−1 which is larger than that of pristine V2O5. The significant difference in capacity is explained on the basis of lithium ions insertion/de-insertion between the layers of V2O5.

Domaines

Matériaux

Dates et versions

hal-00712876 , version 1 (28-06-2012)

Identifiants

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A. Vadivel Murugan, Chai-Won Kwon, Guy Campet, B. B. Kale, Trupti Maddanimath, et al.. Electrochemical lithium insertion into a poly(3,4-ethylenedioxythiophene)PEDOT/V2O5 nanocomposite. Journal of Power Sources, 2002, 105 (1), pp.1-5. ⟨10.1016/S0378-7753(01)00992-2⟩. ⟨hal-00712876⟩

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