P-redox mechanism at the origin of the high lithium storage in NiP2-based batteries
| hal.structure.identifier | Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM] | |
| dc.contributor.author | BOYANOV, Simeon | |
| hal.structure.identifier | Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM] | |
| dc.contributor.author | BERNARDI, J. | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | BEKAERT, Emilie | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | MÉNÉTRIER, Michel | |
| hal.structure.identifier | Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM] | |
| dc.contributor.author | DOUBLET, Marie-Liesse | |
| hal.structure.identifier | Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM] | |
| dc.contributor.author | MONCONDUIT, Laure | |
| dc.date.issued | 2009 | |
| dc.identifier.issn | 0897-4756 | |
| dc.description.abstractEn | The Li reactivity of NiP<sub>2</sub> is investigated by means of electrochemical tests, in situ XRD, and <sup>31</sup>P NMR characterizations as well as first principles DFT calculations. A two-step insertion/conversion reaction is shown to transform the NiP<sub>2</sub> starting electrode into an intermediate Li<sub>2</sub>NiP<sub>2</sub> single phase and then to convert into the Li<sub>3</sub>P/Ni° nanocomposite. The ternary phase is fully characterized and is shown to be structurally very close to the starting NiP<sub>2</sub> regarding the Ni ions environment. This demonstrates that its formation results from a P-redox insertion mechanism associated with a very good reversibility. However, its nucleation upon delithiation from the fully converted Li<sub>3</sub>P/Ni composite is shown to be kinetically limited (poor structural relationship) which strongly suggests that restricted lithiation is required for best cycleability of the NiP<sub>2</sub>/Li cell. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.subject.en | Lithium | |
| dc.subject.en | Reactivity | |
| dc.subject.en | NiP<sub>2</sub> | |
| dc.subject.en | Electrochemistry | |
| dc.subject.en | XRD | |
| dc.subject.en | <sup>31</sup> P Nuclear magnetic resonance | |
| dc.subject.en | DFT | |
| dc.title.en | P-redox mechanism at the origin of the high lithium storage in NiP2-based batteries | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/cm802393z | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Chemistry of Materials | |
| bordeaux.page | 298-308 | |
| bordeaux.volume | 21 | |
| bordeaux.issue | 2 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00355776 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00355776v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemistry%20of%20Materials&rft.date=2009&rft.volume=21&rft.issue=2&rft.spage=298-308&rft.epage=298-308&rft.eissn=0897-4756&rft.issn=0897-4756&rft.au=BOYANOV,%20Simeon&BERNARDI,%20J.&BEKAERT,%20Emilie&M%C3%89N%C3%89TRIER,%20Michel&DOUBLET,%20Marie-Liesse&rft.genre=article |
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