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In situ studies of electrodic materials in Li-ion cells upon cycling performed by very-high-energy x-ray diffraction

TitoloIn situ studies of electrodic materials in Li-ion cells upon cycling performed by very-high-energy x-ray diffraction
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2001
AutoriAlbertini, V.R., Perfetti P., Ronci F., Reale P., and Scrosati B.
RivistaApplied Physics Letters
Volume79
Paginazione27-29
ISSN00036951
Abstract

A very high-energy synchrotron radiation source (87 keV) was utilized for in situ sampling of the structural changes occurring in the electrodic materials of a Li-ion cell during charge-discharge cycling. The real-time evolution of their crystal lattice was obtained as a function of the degree of Li intercalation. As a result, new information on two electrodic materials, Li-Ti "zero strain" and Li-Ni-Co oxide, both of extreme interest for generation of rechargeable batteries, was gained. The actual change of the Li-Ti oxide lattice parameter upon cycling was observed in greater detail than before, and provided evidence of unexpected behavior in some intervals of the cycle. In the Li-Ni-Co sample, a new phase formed during the early stages of cycling that remained stable in the subsequent cycles was revealed. © 2001 American Institute of Physics.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0035796738&doi=10.1063%2f1.1383058&partnerID=40&md5=c20549c1da5bc8746021b9a63f73deb4
DOI10.1063/1.1383058
Citation KeyAlbertini200127