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The role and utilization of pseudocapacitance for energy storage by supercapacitors

Conway, B.E ; Birss, V ; Wojtowicz, J

Journal of Power Sources, 1997, Vol.66(1), pp.1-14 [Peer Reviewed Journal]

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  • Title:
    The role and utilization of pseudocapacitance for energy storage by supercapacitors
  • Author/Creator: Conway, B.E ; Birss, V ; Wojtowicz, J
  • Language: English
  • Subjects: Supercapacitors ; Eenergy Storage ; Pseudocapacitance ; Supercapacitors ; Eenergy Storage ; Pseudocapacitance ; Engineering
  • Is Part Of: Journal of Power Sources, 1997, Vol.66(1), pp.1-14
  • Description: The principle of utilizing the non-Faradaic double-layer capacitance of electrode interfaces as a means of storing electrical energy was suggested and utilized in technologies initiated some 37 years ago. However, only over the last ten years has major interest been manifested in commercial development of this possibility in so-called ‘supercapacitors’ or ‘ultracapacitors’ based on the large double-layer capacitance achievable at high-area, carbon powder electrodes. In parallel with the utilization of double-layer capacitance is the possibility of use of the large pseudocapacitance that is associated with e.g. electrosorption of H or metal adatoms (underpotential deposition) and especially some redox processes. Such pseudocapacitance arises when, for thermodynamic reasons, the charge q required for progression of an electrode process, e.g. electrosorption or conversion of an oxidized species to a corresponding reduced species in liquid or solid solution, is a continuous function...
  • Identifier: ISSN: 0378-7753 ; E-ISSN: 1873-2755 ; DOI: 10.1016/S0378-7753(96)02474-3