| DOI | Trouver le DOI : https://doi.org/10.1149/1.1836972 |
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| Auteur | Rechercher : Zheng, Tao; Rechercher : McKinnon, W. R.1; Rechercher : Dahn, J. R. |
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| Affiliation | - Conseil national de recherches Canada. Institut des sciences des microstructures du CNRC
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| Format | Texte, Article |
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| Sujet | absorption; additives; bonds (chemical); carbon; electrochemistry; energy storage; hydrogen; hysteresis; lithium |
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| Résumé | We studied lithium insertion in hydrogen-containing carbons heated at temperatures near 700�C. High capacities with large hysteresis (lithium insertion into these carbons at nearly 0 V and removal at nearly 1 V) were shown to be proportional to the hydrogen content of the samples. It is believed that the lithium atoms may bind on hydrogen-terminated edges of hexagonal carbon fragments, causing a change in the bond from sp2 to sp3. We have carefully studied the electrochemical insertion of lithium in hydrogen-containing carbons using a variety of charge-discharge rates and cycling temperatures. These measurements allow the hysteresis to be quantified. A simple model, which treats the bonding change as an activated process, is used to model the hysteresis in the cells qualitatively. |
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| Date de publication | 1996-06-30 |
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| Dans | |
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| Langue | anglais |
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| Numéro NPARC | 12337953 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 116b9201-50df-49be-8a2b-6e20808cd83c |
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| Enregistrement créé | 2009-09-10 |
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| Enregistrement modifié | 2020-03-20 |
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