Mixed polyanion glass cathodes: Effect of polyanion content

Kercher, Andrew K.; Kolopus, James A.; Sacci, Robert L.; Ruther, Rose E.; Gallego, Nidia C.; Stooksbury, Shelby L.; Boatner, Lynn A.; Dudney, Nancy J.

doi:10.1149/2.1341704jes

Mixed polyanion glass cathodes: Effect of polyanion content

Journal Article · Fri Feb 17 23:00:00 EST 2017 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/2.1341704jes· OSTI ID:1344266

Kercher, Andrew K. ^[1]; Kolopus, James A. ^[1]; Sacci, Robert L. ^[1]; Ruther, Rose E. ^[1]; Gallego, Nidia C. ^[1]; ^[1]; Boatner, Lynn A. ^[1]; Dudney, Nancy J. ^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Mixed polyanion glass cathodes in lithium-ion batteries have very high capacities (200-500 mAh/g), but currently these materials have fundamental problems with 1^st-cycle irreversible loss, cycling efficiency, and capacity fade. It is well established that polyanion substitutions into glasses can dramatically affect their physical properties, but the effect of polyanion content on the electrochemical performance has not been previously established. The proper amount of lithium and borate substitution in copper phosphate/vanadate glasses was shown to nearly eliminate 1^st-cycle irreversible loss and improve cycling efficiency. As a result, Raman and IR spectroscopy were used to identify polyanions that correlated with electrochemical performance changes.

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1344266

Journal Information:: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 4 Vol. 164; ISSN 0013-4651

Publisher:: IOP Publishing - The Electrochemical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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25 ENERGY STORAGE
36 MATERIALS SCIENCE
IR spectroscopy
Raman
borate
cathode
glass
lithium ion battery
phosphate
polyanion
vanadate

Mixed polyanion glass cathodes: Effect of polyanion content

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