
Journal of the Electrochemical Society p. 2940 - 2943 (1989)
Update date:2022-08-17
Topics:
Qingfeng
Hjuler
Berg
Bjerrum
The spontaneous growth of aluminum dendrites after deposition was observed and examined in sodium chloride-aluminum chloride melts. The concentration gradient of AlCl3 in the vicinity of the cathode surface resulting from electrolysis constitutes a type of concentration cell with aluminum dendrites as electrodes. The short-circuit discharge of the cell is found to be the driving force for the growth of aluminum dendrites. Such a concentration gradient is proposed to be one of the causes for dendrite formation in the case of metal deposition.
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