Diffusivity Measurement of LiPF6, LiTFSI, LiBF4 in PC

Diffusivity Measurement of LiPF6, LiTFSI, LiBF4 in PC

The molecular diffusion coefficients of LiPF6, LiTFSI and LiBF4 in PC were measured by Moiré pattern technique within the salt concentration range from 0.5 M to 1.0 M and at the temperature range from 258 K to 298 K. The diffusion coefficient of LiPF6 and LiTFSI are around 4×10-6 cm2 s-1 and that of...

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Veröffentlicht in:ECS transactions 2008-01, Vol.6 (18), p.1-14
Hauptverfasser: Nishida, Tetsuo, Nishikawa, Kei, Fukunaka, Yasuhiro
Format: Artikel
Sprache:eng
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Zusammenfassung:The molecular diffusion coefficients of LiPF6, LiTFSI and LiBF4 in PC were measured by Moiré pattern technique within the salt concentration range from 0.5 M to 1.0 M and at the temperature range from 258 K to 298 K. The diffusion coefficient of LiPF6 and LiTFSI are around 4×10-6 cm2 s-1 and that of LiBF4 is around 3×10-6 cm2 s-1 at 298 K. The activation energy of LiPF6- PC, LiTFSI-PC and LiBF4-PC system was calculated from an Arrhenius plots. They were 14, 18 and 21 kJ mol-1, respectively.
ISSN:1938-5862
1938-6737
DOI:10.1149/1.2831921