VADIVEL MURUGAN, A.; KWON, Chai-Won; CAMPET, Guy; KALE, B. B.; MADDANIMATH, Trupti; VIJAYAMOHANAN, K.

doi:10.1016/S0378-7753(01)00992-2

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VADIVEL MURUGAN, A.
Centre for Materials for Electronics Technology [C-MET]

KWON, Chai-Won
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

CAMPET, Guy
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Journal of Power Sources. 2002, vol. 105, n° 1, p. 1-5

Elsevier

Résumé en anglais

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.< Réduire

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Lithiuminsertion

PEDOT/V2O5

Nanocomposite

Cathode material

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

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