Abstract
We show that foreign second phase particles incorporated into the lithium metal-ceramic-electrolyte interface catalyze nucleation of voids, which, at first, lead to higher voltage and then to voltage collapse in constant current experiments. Voltage increases because voids grow the area-specific resistance. The collapse is caused by dendrites. Cell manufacture in high class clean room environments is recommended for the sake of reliability and increased performance.
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References
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This research was supported by a grant from Lucideon Limited, of Stoke of Trent in the UK.
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Andriamady, N.E., Raj, R. Nucleation of voids at second phase particles at lithium–ceramic interface degrades cell performance. MRS Communications 11, 879–883 (2021). https://doi.org/10.1557/s43579-021-00123-y
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DOI: https://doi.org/10.1557/s43579-021-00123-y