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- E-ISSN 2288-8985
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Structural and Electrical Characterization of <TEX>$LiMn_2O_4$</TEX> Synthesized by Solid State Reaction
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1998, v.11 no.5, pp.360-365
Oh,
W., Kim,
B., Lee,
Y., &
Ko,
Y.
(1998). Structural and Electrical Characterization of <TEX>$LiMn_2O_4$</TEX> Synthesized by Solid State Reaction. Analytical Science and Technology, 11(5), 360-365.
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Abstract
We have studied structural characterization, electrical charge and discharge, and impedence properties for the <TEX>$LiMn_2O_4$</TEX> synthesized by solid state reaction. From the X-ray diffraction results, diffraction patterns for compounds of the four kinds of <TEX>$LiMn_2O_4$</TEX> compounds were observed to peaks of (111), (311), (004) and (400). Also, Small similar peaks (110), (222) and (313) were observed for sample C1 and C2. Concerning to new peaks of (113) and (331) for the sample C4, we can found that structural transitions were accompanied from C1 and C2 to C4 via C3 structure. A electrical charge and discharge data showed that efficiency of C1 was very poor state and efficiencies of C2 and C3 were about 60-70% of theoretical capacity. But, the C4 showed good charge and discharge properties of more than 70% of theoretical capacity. From the impedence properties for finding the effect of ions and electrons transfer of battery, C2 and C3 of high frequency of real number showed good electrical impedence properties.
- keywords
- impedence property, solid state reaction, electrical charge and discharge
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