- P-ISSN 1225-0163
- E-ISSN 2288-8985
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- P-ISSN1225-0163
- E-ISSN2288-8985
- SCOPUS, ESCI, KCI
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The relation of structural transition, thermal and electrical stability deintercalation of Li- CICs(II) : For Li-EaGDICs and Li-EGDICs
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1996, v.9 no.1, pp.43-51
Oh,
W., Park,
C., Back,
D., &
Ko,
Y.
(1996). The relation of structural transition, thermal and electrical stability deintercalation of Li- CICs(II) : For Li-EaGDICs and Li-EGDICs. Analytical Science and Technology, 9(1), 43-51.
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Abstract
We have discussed on the deintercalation process of Li-EaGICs and Li-EGICs synthesized under pressure and temperature by spontaneous oxidation reaction of those compounds based on the results of X-ray diffraction, thermal analysis and electrical specific resistivity analysis. According to the results of the X-ray analysis for the intercalation process, we have found that the stage 1 for Li-EaGICs and Li-EGICs were not completly formed, but their lower stages were formed mainly. And from this results of the deintercalation process, we have found that the deintercalation process did not occur any more after 4 weeks, and the Li-EGDICs have more residual lithium metals than LiEaGDICs between the graphite interlayers. According to the thermal decomposition analysis, Li-two compounds had included very hard exothermic reaction. And we have found that these compounds did not occrurred deintercalation reaction above <TEX>$400^{\circ}C$</TEX>. According to the results of the electrical specific resistivity measurements, Li-EGDICs have relatively lower electrical specific resistivity than Li-EaGDICs, and Li-EaGDICs showed a formation of the ideal curve. From these results, we can suggest that Li-EaGDICs have a better properties as an anode material secondary than Li-EGICs.
- keywords
- Earth Graphite, Exfoliated Graphite, Intercalation Compounds, Lithum, Deintercalation, X-ray Diffraction, Thermal Analysis, Exothermic reaction, Specific resistivity
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