The a.c. response of lithium, stainless steel, and porous carbon electrodes in thionyl chloride solutions

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    Abstract

    Impedance measurements on Li electrodes in SOCl2 electrolytes indicate that the structure of the passivating surface layer formed in 1.8M LiAlCl4 differs from that formed in 1.8M AlCl3, 1.2M LiCl, 0.6M SO2. Also, porous carbon electrodes are found to behave differently in these two electrolytes. Unpolarised stainless steel electrodes show a 67° constant phase angle impedance over a wide frequency range whereas polarised to O mV vs. Li the impedance diagram is very similar to that of Li. Finally, it is found that passivation may develop differently for Li pressed onto stainless steel from that of Li pressed onto glass.
    Original languageEnglish
    JournalJournal of Power Sources
    Volume14
    Issue number1-3
    Pages (from-to)123-127
    ISSN0378-7753
    Publication statusPublished - 1985

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