DEPOSITION POTENTIALS OF LI(Ⅰ)ON Al-Cu AND Al-RE ELECTRODES AND DIFFUSION COEFFICIENT OF LITHIUM IN LIQUID Al-Cu ALLOY

Chinese Journal of Applied Chemistry ›› 1991, Vol. 0 ›› Issue (4): 90-92.

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DEPOSITION POTENTIALS OF LI(Ⅰ)ON Al-Cu AND Al-RE ELECTRODES AND DIFFUSION COEFFICIENT OF LITHIUM IN LIQUID Al-Cu ALLOY

Chang Kaiguo, Zhao Minshou

Changchun institute of Applied Chemistry, Academia Sinica, Changchun 130022

Received:1990-07-09 Revised:1990-11-12 Published:1991-08-10 Online:1991-08-10

Abstract

Abstract: The deposition potenials of Li(I) on AI, Al-Cu, Al-RE and Mo electrodes and diffu-sion coefficient of lithium in liquid Al-Cu alloy have been measured by voltammetry andanodic chronopotentiometry respectively.A strong depolarization is observed in the depositionprocess of Li(I) on Al, Al-Cu, and Al-RE electrodes.In the range of 973～1073K, the co-relation between the diffusion coefficient and temperature can be represented by lnD = 5.70-16150/T.The experimental results show an increase in the chemical diffusion coefficientwith increasing lithium content in the alloy matrix at concentrations used.

Key words: lithium, deposition potential, chronopotentiometry, diffusion coefficient

Chang Kaiguo, Zhao Minshou. DEPOSITION POTENTIALS OF LI(Ⅰ)ON Al-Cu AND Al-RE ELECTRODES AND DIFFUSION COEFFICIENT OF LITHIUM IN LIQUID Al-Cu ALLOY[J]. Chinese Journal of Applied Chemistry, 1991, 0(4): 90-92.

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DEPOSITION POTENTIALS OF LI(Ⅰ)ON Al-Cu AND Al-RE ELECTRODES AND DIFFUSION COEFFICIENT OF LITHIUM IN LIQUID Al-Cu ALLOY

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