Zinc electrode and rechargeable zinc-air battery,申请号US19880209592-传众专利搜索

Zinc electrode and rechargeable zinc-air battery

申请公布号：US4842963(A)

申请号：US19880209592

申请日期：1988.06.21

申请公布日期：1989.06.27

申请人：

THE UNITED STATES OF AMERICA AS REPRESENTED BY THE UNITED STATES DEPARTMENT OF ENERGY

发明人：ROSS, JR., PHILIP N.

分类号：H01M4/24;H01M4/80;H01M12/08

主分类号：H01M4/24

摘要：An improved zinc electrode is disclosed for a rechargeable zinc-air battery comprising an outer frame and a porous foam electrode support within the frame which is treated prior to the deposition of zinc thereon to inhibit the formation of zinc dendrites on the external surface thereof. The outer frame is provided with passageways for circulating an alkaline electrolyte through the treated zinc-coated porous foam. A novel rechargeable zinc-air battery system is also disclosed which utilizes the improved zinc electrode and further includes an alkaline electrolyte within said battery circulating through the passageways in the zinc electrode and an external electrolyte circulation means which has an electrolyte reservoir external to the battery case including filter means to filter solids out of the electrolyte as it circulates to the external reservoir and pump means for recirculating electrolyte from the external reservoir to the zinc electrode.