The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 1995
Filed:
Jul. 06, 1993
Electric Fuel (E.F.L.) Ltd., Jerusalem, IL;
Abstract
A process for the preparation of an alkaline-zinc slurry for use in batteries, the slurry comprising an admixture of (a) at least partly oxidized zinc; (b) an aqueous solution of at least one Group Ia metal; and (c) an inorganic or organic inhibitor. The process includes the steps of electrolyzing the admixture in a cell with a corrosion-resistant anode and a non-zinc-adherent cathode such that the zinc deposits on the cathode self-detach or are removed until no more than a preselected amount of zinc remains in the solution, provided that the current density at the cathode is preselected so that the electrowon zinc will have, after homogenizing into particles, a density within the range 0.2-2.0 g/cc and a surface area within the range 0.5-6.0 m.sup.2 /g; removing zinc from the cathode and homogenizing it into particles; and combining the homogenized zinc particles with additional aqueous Group Ia metal hydroxide and optionally with other makeup components selected from the group consisting of water and inhibitor to form a charged slurry.