| 摘要 |
This invention relates to an improved rechargeable metal-hydrogen electrochemical battery. Each hydrogen electrode comprises a porous sheet of carbon particles catalyzed by platinum or palladium and bonded together with a hydrophobic binder, preferably Teflon, a registered U.S. trademark of E.I. du Pont de Nemours /A Co. for polytetrafluoroethylene, so that the sheet is wetproofed. A conductive metallic screen coated on one side with a hydrophobic binder is laminated on that coated side to the sheet. The improved hydrogen electrode functions as an anode, with a cathode such as porous sintered nickel or silver plaque facing the screen-free side of the anode sheet and separated therefrom by a bibulous separator contacting both the anode and the cathode and containing sufficient liquid electrolyte to substantially fill the pores of the cathode and anode. Also included are sealing means, including peripheral gasket means, to prevent undesired leakage of electrolyte and gases. The sealing means provides controlled access of hydrogen only to the screen covered side of the anode. The conductive means joining the anode and cathode comprises the metallic screen with or without the metallic spacer present. The cells in the stack are series connected. No external connections are required for current flow through the stack. Terminal end plates are provided to help seal the stack. The improved battery exhibits improved performance, durability, reliability and compact construction. |
