Title: Pure iron foil preparation method by electrolytic formation
Application Number: 91102934 Application Date: 1991.05.08
Publication Number: 1066478 Publication Date: 1992.11.25
Approval Pub. Date: Granted Pub. Date: 1994.06.15
International Classifi-cation: C25C1/06,C25D1/04
Applicant(s) Name: Chemical Engineering Address: 100080
Inventor(s) Name: Lu Weichang, Xu Yonglan
Attorney & Agent: LI TAIMIN
Abstract:
     The present invention relates to a method for preparing pure iron foil by electrolytic formation which deposits on the titanium or titanium alloy barrate cathode by dc electrolytic deposition and continuous stripping. It features that a soluable anode is used, the electrolyte is composed of FeCL226H20 and a little amount of stabilizator and watter. The cathode current density is 0.01-0.35 A/sq. cm. The concentration of electrolyte solution is 75-100%. In the acidic electrolyte solution with pH value 0.1-3.5, the pure iron foil with thickness of electrolytic deposition of 20-100 micron, purity of 99.89% and excellent physical and mechanical properties is obtained. The pure iron foil is widely applicable to various fields as magnetic shielding meterial, high energy storage density Ni-Cr cell, packaging, etc..
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