| Autor: |
Bogomolov, M., Pantyukhina, M., Surin, A., Obrosov, V., Batalov, N., Stepanov, A., Surikov, V. |
| Zdroj: |
Russian Journal of Electrochemistry; October 2004, Vol. 40 Issue: 10 p1029-1034, 6p |
| Abstrakt: |
The isotope composition of lithium charge carriers is experimentally found to severely affect transport in solid electrolytes α-Li3BO3, Li3N, Li3AlN2, Li5SiN3, Li6MoN4, Li6WN4, and LiCl. The lithium cation conduction of these decreases with increasing content of 6Li or 7Li and reaches a minimum at [6Li] = [7Li]. The activation energy for conduction increases, reaches a maximum in the same compositions, and then diminishes. Rates of spin–lattice relaxation of 7Li nuclei in electrolytes are studied by an NMR method at 15–35 MHz. The calculated activation energy for short-range motion (to one interatom distance) of lithium charge carriers in crystal lattices of electrolytes is lower than that for ionic conduction by 2–3 times, which is attributed to two types of correlation (electrostatic, isotopic) of charge carriers. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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