Raman spectroscopic and structural studies of heat-treated graphites for lithium-ion batteries
Raman spectroscopic and structural studies of heat-treated graphites for lithium-ion batteries
Standard graphite TIMREX(R) SLX 50 was oxidised at 500-800 °C under air atmosphere in a muffle and a rotary furnace. Scanning Electron Microscopy (SEM), Raman spectroscopy, and X-Ray Powder Diffraction (XRD) were used to study the changes in surface morphology and crystallinity. The results show a slight increase of the La value and a decrease of the rhombohedral fraction with increased heat-treatment temperature (HTT). XRD measurements show no significant change in La values within the bulk of graphite samples. Above 700 °C SEM images of graphite reveals holes and cavities, whereas heat-treatment temperatures below 700 °C do not significantly affect graphite materials parameters.
pyrolyzed sugar carbons, anode materials, surface modification, electrode materials, insertion, spectrum
258-265
Goers, D.
1929b32e-448f-431e-bb5c-6bd39d03b92e
Buqa, H.
fc7b24b9-fc64-4d70-9741-6d7a0246d59b
Hardwick, L.
e5818e74-e685-4ff7-9495-0bf7de7f15a6
Würsig, A.
1fc51ce5-c41b-4591-a6c7-f46029b54b9a
Novák, P.
4c6e6edf-0d99-4cb7-912c-cd3f2ee4a89e
2003
Goers, D.
1929b32e-448f-431e-bb5c-6bd39d03b92e
Buqa, H.
fc7b24b9-fc64-4d70-9741-6d7a0246d59b
Hardwick, L.
e5818e74-e685-4ff7-9495-0bf7de7f15a6
Würsig, A.
1fc51ce5-c41b-4591-a6c7-f46029b54b9a
Novák, P.
4c6e6edf-0d99-4cb7-912c-cd3f2ee4a89e
Goers, D., Buqa, H., Hardwick, L., Würsig, A. and Novák, P.
(2003)
Raman spectroscopic and structural studies of heat-treated graphites for lithium-ion batteries.
Ionics, 9 (3-4), .
Abstract
Standard graphite TIMREX(R) SLX 50 was oxidised at 500-800 °C under air atmosphere in a muffle and a rotary furnace. Scanning Electron Microscopy (SEM), Raman spectroscopy, and X-Ray Powder Diffraction (XRD) were used to study the changes in surface morphology and crystallinity. The results show a slight increase of the La value and a decrease of the rhombohedral fraction with increased heat-treatment temperature (HTT). XRD measurements show no significant change in La values within the bulk of graphite samples. Above 700 °C SEM images of graphite reveals holes and cavities, whereas heat-treatment temperatures below 700 °C do not significantly affect graphite materials parameters.
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Published date: 2003
Keywords:
pyrolyzed sugar carbons, anode materials, surface modification, electrode materials, insertion, spectrum
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Local EPrints ID: 19964
URI: http://eprints.soton.ac.uk/id/eprint/19964
PURE UUID: 8eab8bd4-e354-41cf-b6e3-4462ccd29ff6
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Date deposited: 24 Feb 2006
Last modified: 22 Jul 2022 20:27
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Contributors
Author:
D. Goers
Author:
H. Buqa
Author:
L. Hardwick
Author:
A. Würsig
Author:
P. Novák
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