Electrochemical investigation of solubility and chemical diffusion of lithium in aluminum

Journal Article · Sat Mar 01 00:00:00 EST 1980 · Metall. Trans., B; (United States)

DOI:https://doi.org/10.1007/BF02657182· OSTI ID:5351330

Wen, C J ^[1]; Boukamp, B A; Huggins, R A; Weppner, W

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1. Stanford Univ., CA

The solubility of lithium in aluminum and the chemical diffusion coefficient in this solid solution have been investigated as a function of temperature between 400 and 600/sup 0/C using the electrochemical cell: (-)Al, LiAl/LiCl-KCl(eut.)/Al(Li)(+). The solubility limit of lithium in aluminum was found to decrease from 13.8 at. pct at 595/sup 0/C to 8.0 at. pct at 395/sup 0/C, in good agreement with data previously reported by other investigators using different techniques. The chemical diffusion coefficient has been measured by two different electrochemical transient techniques. The data can be represented by the relation: tilde D = 0.155 exp (-..delta..H/RT) cm/sup 2//s where ..delta..H is 119.2 kJ/mol. This electrochemical technique has also been used to obtain values of the composition dependence of the Gibbs free energy of mixing and the enhancement factor d in a/sub Li/dlnX/sub Li/ which relates the chemical diffusion coefficient and the self diffusion coefficients within the Li-Al solid solution.

• OSTI ID: 5351330
• Journal Information: Metall. Trans., B; (United States), Vol. 11:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
25 ENERGY STORAGE
ALUMINIUM
SORPTIVE PROPERTIES
LITHIUM
DIFFUSION
ANODES
CONTROLLED ATMOSPHERES
ELECTRIC BATTERIES
HELIUM
ALKALI METALS
ATMOSPHERES
CRYOGENIC FLUIDS
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
ENERGY STORAGE SYSTEMS
FLUIDS
METALS
NONMETALS
RARE GASES
SURFACE PROPERTIES
360104* - Metals & Alloys- Physical Properties
250900 - Energy Storage- Batteries