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Structure of Li<sub>2</sub>MnO<sub>3</sub> with different degrees of defects
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | BOULINEAU, Adrien | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | CROGUENNEC, Laurence | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DELMAS, Claude | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| hal.structure.identifier | Centre de Ressources en Microscopie Electronique et Microanalyse [CREMEN] | |
| dc.contributor.author | WEILL, François | |
| dc.date.issued | 2010 | |
| dc.identifier.issn | 0167-2738 | |
| dc.description.abstractEn | The synthesis and structural properties of the layered oxide Li<sub>2</sub>MnO<sub>3</sub> have been studied in details. It represents a key for a better understanding of the complex structural evolutions pointed out in the materials like Li(Li,Ni,Mn,Co)O<sub>2</sub> when they are used as positive electrode materials in lithium-ion batteries. Li<sub>2</sub>MnO<sub>3</sub> samples were prepared either via coprecipitation or via a two step solid state reaction followed by different annealing treatments. Using X-ray and electron diffraction in combination with diffraction data simulations, we show that in function of the synthesis conditions, Li<sub>2</sub>MnO<sub>3</sub> is obtained with various degrees of disorder, along the <i>c</i> monoclinic direction, in the stacking of the ordered Li<sub>1/3</sub>Mn<sub>2/3</sub> sheets within the cfc oxygen packing. We show that this disorder decreases when the synthesis temperature increases but the synthesis of a material free of stacking faults is not possible with these synthesis routes. Finally, the similarities between the evolutions pointed out in Li<sub>2</sub>MnO<sub>3</sub> due to the synthesis conditions and those previously observed in the materials like Li(Li,Ni,Mn,Co)O<sub>2</sub> related to the evolution of the cations distribution in the slabs are underlined. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Li<sub>2</sub>MnO<sub>3</sub> | |
| dc.subject.en | Layered oxides | |
| dc.subject.en | X-ray diffraction | |
| dc.subject.en | Electron diffraction | |
| dc.subject.en | Defects | |
| dc.subject.en | Stacking faults | |
| dc.title.en | Structure of Li<sub>2</sub>MnO<sub>3</sub> with different degrees of defects | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.ssi.2009.10.020 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Solid State Ionics | |
| bordeaux.page | 1652-1659 | |
| bordeaux.volume | 180 | |
| bordeaux.issue | 40 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00463590 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00463590v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Solid%20State%20Ionics&rft.date=2010&rft.volume=180&rft.issue=40&rft.spage=1652-1659&rft.epage=1652-1659&rft.eissn=0167-2738&rft.issn=0167-2738&rft.au=BOULINEAU,%20Adrien&CROGUENNEC,%20Laurence&DELMAS,%20Claude&WEILL,%20Fran%C3%A7ois&rft.genre=article |
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