Lithium electrochemical deintercalation from O2-LiCoO2: Structure and physical properties
Identifieur interne : 000124 ( Maroc/Analysis ); précédent : 000123; suivant : 000125Lithium electrochemical deintercalation from O2-LiCoO2: Structure and physical properties
Auteurs : D. Carlier [France] ; I. Saadoune [France, Maroc] ; M. Menetrier [France] ; C. Delmas [France]Source :
- Journal of the Electrochemical Society [ 0013-4651 ] ; 2002.
Descripteurs français
- Pascal (Inist)
- Accumulateur électrochimique, Accumulateur électrolyte organique, Batterie métal oxyde métallique, Batterie électrique, Matériau électrode, Composé ternaire, Composé insertion, Cobalt oxyde, Lithium oxyde, Phase cristalline, Paramètre cristallin, Propriété électronique, Morphologie cristalline, Caractéristique électrique, Cycle charge décharge, Capacité spécifique, Spectrométrie RMN, Diffraction RX, Lithium 7, LiCoO(2), Co Li O.
English descriptors
- KwdEn :
- Cobalt oxide, Crystal morphology, Crystalline phase, Discharge charge cycle, Electric batteries, Electrical characteristic, Electrode material, Electronic properties, Intercalation compound, Lattice parameters, Lithium 7, Lithium oxide, Metal metal oxide batteries, NMR spectrometry, Organic electrolyte storage battery, Secondary cell, Specific capacity, Ternary compound, X ray diffraction.
Abstract
Electrochemical deintercalation of Li from the metastable O2-LiCoO2 phase has been investigated up to the composition Li0.15CoO2. The single-phase domains that separate the voltage plateaus observed have been characterized by X-ray diffraction. The succession of phases observed upon deintercalation results from reversible sheet gliding or lithium/vacancy ordering, leading to the sequence 02, T#2, T#2', 06, 02, 02. In particular, the T#2 stacking, similar to the T2 phase reported by Dahn and co-workers for the Li2/3Ni1/3Mn2/3O2 phases, corresponds to oxygen ions not sitting on the three positions of a triangular lattice, hence the # character is used. It exhibits very distorted tetrahedral sites for Li. The 06 stacking exhibits two kinds of CoO6 octahedra, which might allow Co3+/Co4+ ordering in alternate sheets. The most deintercalated O2-Li0.15CoO2 phase has never been reported before. Electronic properties and 7Li magic-angle spinning nuclear magnetic resonance show a transition to a metallic state for x< 0.94 (appearance of the T#2 phase with x = 0.72). These stacking changes are proposed to result from the minimization of electrostatic repulsion, except for T#2' (x = 0.50), which is believed to result from a Li/vacancy ordering.
Affiliations:
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Pascal:03-0008873Le document en format XML
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Saadoune</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Institut de Chimie de la Matière Condensée de Bordeaux-CNRS and Ecole Nationale Supérieure de Chimie et Physique de Bordeaux, Université Bordeaux 1</s1><s2>33608 Pessac</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Pessac</settlement></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Département de Chimie, Faculté des Sciences et Techniques</s1><s2>40 000 Marrakech</s2><s3>MAR</s3><sZ>2 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>40 000 Marrakech</wicri:noRegion></affiliation></author><author><name sortKey="Menetrier, M" sort="Menetrier, M" uniqKey="Menetrier M" first="M." last="Menetrier">M. 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Carlier</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Institut de Chimie de la Matière Condensée de Bordeaux-CNRS and Ecole Nationale Supérieure de Chimie et Physique de Bordeaux, Université Bordeaux 1</s1><s2>33608 Pessac</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Pessac</settlement></placeName></affiliation></author><author><name sortKey="Saadoune, I" sort="Saadoune, I" uniqKey="Saadoune I" first="I." last="Saadoune">I. Saadoune</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Institut de Chimie de la Matière Condensée de Bordeaux-CNRS and Ecole Nationale Supérieure de Chimie et Physique de Bordeaux, Université Bordeaux 1</s1><s2>33608 Pessac</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Pessac</settlement></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Département de Chimie, Faculté des Sciences et Techniques</s1><s2>40 000 Marrakech</s2><s3>MAR</s3><sZ>2 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>40 000 Marrakech</wicri:noRegion></affiliation></author><author><name sortKey="Menetrier, M" sort="Menetrier, M" uniqKey="Menetrier M" first="M." last="Menetrier">M. Menetrier</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Institut de Chimie de la Matière Condensée de Bordeaux-CNRS and Ecole Nationale Supérieure de Chimie et Physique de Bordeaux, Université Bordeaux 1</s1><s2>33608 Pessac</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Pessac</settlement></placeName></affiliation></author><author><name sortKey="Delmas, C" sort="Delmas, C" uniqKey="Delmas C" first="C." last="Delmas">C. Delmas</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Institut de Chimie de la Matière Condensée de Bordeaux-CNRS and Ecole Nationale Supérieure de Chimie et Physique de Bordeaux, Université Bordeaux 1</s1><s2>33608 Pessac</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Pessac</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of the Electrochemical Society</title><title level="j" type="abbreviated">J. Electrochem. Soc.</title><idno type="ISSN">0013-4651</idno><imprint><date when="2002">2002</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of the Electrochemical Society</title><title level="j" type="abbreviated">J. Electrochem. Soc.</title><idno type="ISSN">0013-4651</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cobalt oxide</term><term>Crystal morphology</term><term>Crystalline phase</term><term>Discharge charge cycle</term><term>Electric batteries</term><term>Electrical characteristic</term><term>Electrode material</term><term>Electronic properties</term><term>Intercalation compound</term><term>Lattice parameters</term><term>Lithium 7</term><term>Lithium oxide</term><term>Metal metal oxide batteries</term><term>NMR spectrometry</term><term>Organic electrolyte storage battery</term><term>Secondary cell</term><term>Specific capacity</term><term>Ternary compound</term><term>X ray diffraction</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Accumulateur électrochimique</term><term>Accumulateur électrolyte organique</term><term>Batterie métal oxyde métallique</term><term>Batterie électrique</term><term>Matériau électrode</term><term>Composé ternaire</term><term>Composé insertion</term><term>Cobalt oxyde</term><term>Lithium oxyde</term><term>Phase cristalline</term><term>Paramètre cristallin</term><term>Propriété électronique</term><term>Morphologie cristalline</term><term>Caractéristique électrique</term><term>Cycle charge décharge</term><term>Capacité spécifique</term><term>Spectrométrie RMN</term><term>Diffraction RX</term><term>Lithium 7</term><term>LiCoO(2)</term><term>Co Li O</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Electrochemical deintercalation of Li from the metastable O2-LiCoO<sub>2</sub> phase has been investigated up to the composition Li<sub>0.15</sub>CoO<sub>2</sub>. The single-phase domains that separate the voltage plateaus observed have been characterized by X-ray diffraction. The succession of phases observed upon deintercalation results from reversible sheet gliding or lithium/vacancy ordering, leading to the sequence 02, T#2, T#2', 06, 02, 02. In particular, the T#2 stacking, similar to the T2 phase reported by Dahn and co-workers for the Li<sub>2/3</sub>Ni<sub>1/3</sub>Mn<sub>2/3</sub>O<sub>2</sub> phases, corresponds to oxygen ions not sitting on the three positions of a triangular lattice, hence the # character is used. It exhibits very distorted tetrahedral sites for Li. The 06 stacking exhibits two kinds of CoO<sub>6</sub> octahedra, which might allow Co<sup>3+</sup>/Co<sup>4+</sup> ordering in alternate sheets. The most deintercalated O2-Li<sub>0.15</sub>CoO<sub>2</sub> phase has never been reported before. Electronic properties and <sup>7</sup>Li magic-angle spinning nuclear magnetic resonance show a transition to a metallic state for x< 0.94 (appearance of the T#2 phase with x = 0.72). These stacking changes are proposed to result from the minimization of electrostatic repulsion, except for T#2' (x = 0.50), which is believed to result from a Li/vacancy ordering.</div></front></TEI><affiliations><list><country><li>France</li><li>Maroc</li></country><region><li>Aquitaine</li><li>Nouvelle-Aquitaine</li></region><settlement><li>Pessac</li></settlement></list><tree><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Carlier, D" sort="Carlier, D" uniqKey="Carlier D" first="D." last="Carlier">D. Carlier</name></region><name sortKey="Delmas, C" sort="Delmas, C" uniqKey="Delmas C" first="C." last="Delmas">C. Delmas</name><name sortKey="Menetrier, M" sort="Menetrier, M" uniqKey="Menetrier M" first="M." last="Menetrier">M. Menetrier</name><name sortKey="Saadoune, I" sort="Saadoune, I" uniqKey="Saadoune I" first="I." last="Saadoune">I. Saadoune</name></country><country name="Maroc"><noRegion><name sortKey="Saadoune, I" sort="Saadoune, I" uniqKey="Saadoune I" first="I." last="Saadoune">I. Saadoune</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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