An electrochemical study of the reactivity at the lithium electrolyte/bare lithium metal interface II. Unpurified solvents
- Univ. of Waterloo, Ontario (Canada). Dept. of Chemistry
The in situ cutting method to expose bare lithium metal, the corrosion potential-time transients, and voltammetric measurements have been employed to study the behavior of lithium in various organic electrolyte environments. In situ optical and ex situ scanning electron microscopy techniques were used to examine the morphology of Li electrode surfaces, during exposure at open circuit and after anodic polarization. The following electrolytes have been investigated: LiAsF[sub 6], LiPF[sub 6], LiBF[sub 4], LiClO[sub 4], and Li(CF[sub 3]SO[sub 2])[sub 2]N in unpurified THF and PC. Small amounts of water shift the corrosion potential towards more positive values (compared to purified electrolytes). During intensive anodic cycling with LiAsF[sub 6]/THF the presence of water leads to the breakdown of a surface film and exposure to bare lithium metal.
- OSTI ID:
- 5983119
- Journal Information:
- Journal of the Electrochemical Society; (United States), Vol. 140:6; ISSN 0013-4651
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
LITHIUM
CORROSION
ELECTROCHEMISTRY
ARSENIC FLUORIDES
CARBONATES
ELECTROLYTES
EXPERIMENTAL DATA
IMPURITIES
INTERFACES
LITHIUM BORIDES
LITHIUM CHLORIDES
LITHIUM FLUORIDES
LITHIUM NITRIDES
LITHIUM PHOSPHIDES
MORPHOLOGY
OPTICAL MICROSCOPY
POLARIZATION
SCANNING ELECTRON MICROSCOPY
SOLVENTS
TETRAHYDROFURAN
VOLTAMETRY
ALKALI METAL COMPOUNDS
ALKALI METALS
ARSENIC COMPOUNDS
BORIDES
BORON COMPOUNDS
CARBON COMPOUNDS
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DATA
ELECTRON MICROSCOPY
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
FURANS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
INFORMATION
LITHIUM COMPOUNDS
LITHIUM HALIDES
METALS
MICROSCOPY
NITRIDES
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
400400* - Electrochemistry
360105 - Metals & Alloys- Corrosion & Erosion