✦ LIBER ✦

Cycling of β-LiAl in organic electrolytes — effect of electrode contaminations and electrolyte additives

✍ Scribed by J.O. Besenhard; H.P. Fritz; E. Wudy; K. Dietz; H. Meyer

Publisher: Elsevier Science
Year: 1985
Tongue: English
Weight: 467 KB
Volume: 14
Category: Article
ISSN: 0378-7753
DOI: 10.1016/0378-7753(85)88030-7

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✦ Synopsis

The mobility of Li in fl-LiAl formed by cathodic Li incorporation is drastically reduced by small amounts of Si in the parent Al; this is shown by 'Li NMR and electrochemical experiments. During long term cycling, the detrimental effect of lower Li mobility is compensated by the less spongy morphology of Si-doped electrodes. Addition of a few hundred ppm of 1,2propanediol or methoxyethanol improves the 1st cycle Li-recovery from Si-doped /3-LiAl in propylene carbonate electrolytes; paraffin oil is a nonreactive surfactant which slightly decreases the corrosion of fl-LiAl.

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