Impact of selected supramolecular additives on the initial electrochemical lithium intercalation into graphite in propylene carbonate |
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| Authors: | Mariusz Walkowiak Daniel Waszak Błażej Gierczyk Grzegorz Schroeder |
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| Institution: | (1) Institute of Non-Ferrous Metals Branch in Poznań Central Laboratory of Batteries and Cells, 61-362 Poznań, Poland;(2) Faculty of Chemistry, A. Mickiewicz University, 60-780 Poznań, Poland |
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| Abstract: | Impact of silicon tripodand-type electrolyte additives and graphite pre-treatment agents on the electrochemical intercalation
of lithium cations into graphite was investigated. Addition of Si-tripodand-type silanes to propylene carbonate-based electrolytes
was found to suppress detrimental solvent co-intercalation and graphite exfoliation. Similar effects were observed for graphite
pre-treated with the reported silane agents. It was observed that the presented supramolecular additives allow for the formation
of effective passive layers on graphite during first charging, and thus can be considered as novel low-cost film-forming components
for rechargeable lithium batteries.
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| Keywords: | Lithium intercalation Li-ion battery Graphite anode Silicon podands |
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