Electrochemical deposition of uniform lithium on an Ni substrate in a nonaqueous electrolyte

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2055169· OSTI ID:7128363

Kanamura, Kiyoshi; Shiraishi, Soshi; Takehara, Zenichiro ^[1]

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1. Kyoto Univ. (Japan). Division of Energy and Hydrocarbon Chemistry

The electrochemical deposition of lithium on an Ni substrate was conducted in propylene carbonate (PC) containing 1.0 mol dm[sup [minus]3] LiClO[sub 4] (LiClO[sub 4]/PC). The morphology of the lithium deposited on the Ni substrate had the typical dendrite form. The electrodeposition of lithium was then performed in LiClO[sub 4]/PC containing 5 [times] 10[sup [minus]3] HF. The lithium deposited on the Ni substrate in this electrolyte had a hemispherical form, and irregular shapes were not observed. The color of the Ni electrodes surface turned to brilliant blue during the electrodeposition of lithium. This indicates that the lithium surface is very smooth and uniform. After five discharge and charge cycles, there were no lithium dendrites on the electrode surface. From these results, it can be concluded that the addition of a small amount of HF to the electrolyte is significantly effective for the suppression to the lithium dendrite formation.

• OSTI ID: 7128363
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 141:9; ISSN JESOAN; ISSN 0013-4651
• Country of Publication: United States
• Language: English

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ALKALI METALS
COATINGS
DATA
DEPOSITION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODEPOSITED COATINGS
ELECTRODEPOSITION
ELECTRODES
ELECTROLYSIS
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HYDROFLUORIC ACID
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INFORMATION
INORGANIC ACIDS
LITHIUM
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METALS
MORPHOLOGY
NICKEL
NUMERICAL DATA
SURFACE COATING
SURFACE PROPERTIES
TRANSITION ELEMENTS