 |
 |
|
Jezowski, P., Fic, K., Crosnier, O., Brousse, T. & Beguin, F. (2016) Use of sacrificial lithium nickel oxide for loading graphitic anode in Li-ion capacitors. Electrochim. Acta, 206 440–445.
Added by: Richard Baschera (2016-06-22 06:49:42) Last edited by: Richard Baschera (2016-06-22 06:54:58) |
| Type de référence: Article DOI: 10.1016/j.electacta.2015.12.034 Numéro d'identification (ISBN etc.): 0013-4686 Clé BibTeX: Jezowski2016 Voir tous les détails bibliographiques  |
Catégories: INTERNATIONAL, ST2E Mots-clés: carbon negative electrode, hybrid electrochemical capacitor, Lithium-ion capacitors, performance, positive electrode material, pre-lithiation, sacrificial lithium nickel oxide, storage mechanism Créateurs: Beguin, Brousse, Crosnier, Fic, Jezowski Collection: Electrochim. Acta |
Consultations : 1/671
Indice de consultation : 5% Indice de popularité : 1.25% |
| Résumé |
|
The use of non-stoichiometric lithium nickel oxide, being a part of the activated carbon positive electrode in lithium-ion capacitors, is presented as an alternative to the use of metallic lithium for graphite pre-lithiation. During the first cycle, lithium ions are irreversibly extracted from the Li0.65Ni1.35O2 host structure and intercalated into the graphite negative electrode. Once extraction and pre-lithiation are completed, activated carbon becomes the only active material for electrical double-layer storage at the positive electrode, while reversible lithium intercalation occurs at the graphite negative one. Since the lithium ions extraction occurs at a potential of 4.2 V vs. Li/Li+, electrolyte oxidation is prevented, and the cell displays a good cyclability in the potential range from 2.2 V to 3.8 V. (c) 2015 Elsevier Ltd. All rights reserved.
|