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:
Jun. 30, 1987
Filed:
Dec. 27, 1985
Torahiko Sasaki, Susono, JP;
Kyoichi Tange, Susono, JP;
Masahiro Okawa, Okasaki, JP;
Yoshihiro Suzuki, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A zinc-bromine battery is disclosed which includes anode and cathode reaction tanks separated from each other by a separator membrane for preventing self-discharge, and an electrolyte storage tank for storing an electrolyte with a bromine complexing agent added thereto. Catholyte and anolyte are circulated between the cathode reaction tank and the anode reaction tank, respectively, and the electrolyte storage tank. A perforated membrane which allows an electrolyte to permeate through it but which impedes the permeation of a bromine complex compound is provided within the electrolyte storage tank so as to separate the tank into an electrolyte mixing chamber into which both catholyte and anolyte flow and an electrolyte supply chamber which resupplies the mixed electrode as the catholyte and the anolyte. When the catholyte and anolyte are mixed with each other in the electrolyte storage tank, the zinc ion concentration is equalized as between the catholyte, so that the zinc ions contained in the electrolyte are effectively utilized during charge, thereby improving the charging capacity and efficiency.