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An auto-electrolyte hydrogen generating reactor having a plurality of cells. The cells are stacked in series in an electronically non-conductive housing. Each cell is separate from its neighbour by electronically conductive bipolar walls. Each cell comprises an anode with a metal whose standard oxid

An auto-electrolyte hydrogen generating reactor having a plurality of cells. The cells are stacked in series in an electronically non-conductive housing. Each cell is separate from its neighbour by electronically conductive bipolar walls. Each cell comprises an anode with a metal whose standard oxidation potential is above that of hydrogen in the same electrolyte. There is a solid electrolyte and a cathode. The cathode is an inert electronic conductor with a surface in contact with a solid electrolyte. The surface is electrochemically catalytic for the formation of hydrogen.

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[ We claim:] [1.] A bipolar wall assembly in an electrolytic hydrogen generating reactor, the wall assembly comprising:a. a first electrolyte;b. a non-porous, first electrolyte container holding the first electrolyte and having an open end;c. a first electrolyte cathode in the open end of the first

[ We claim:] [1.] A bipolar wall assembly in an electrolytic hydrogen generating reactor, the wall assembly comprising:a. a first electrolyte;b. a non-porous, first electrolyte container holding the first electrolyte and having an open end;c. a first electrolyte cathode in the open end of the first electrolyte container, the first electrolyte cathode being in contact with the first electrolyte;d. an electronically conductive porous barrier in contact, with the first selectrolyte cathode, the first electrolyte cathode and the barrier together being positioned against the open end of the first electrolyte container to hold the first electrolyte in the first electrolyte container and adapted to allow hydrogen gas to escape from the first electrolyte container when hydrogen gas is produced at the first electrolyte cathode;e. a non-porous conductive cap housing an anode, the cap electrochemically separating the anode from the barrier, the cap being in contact with the barrier, the barrier separating the first electrolyte cathode from the cap;f. a second electrolyte in contact with the anode;g. a non-porous second electrolyte container holding the second electrolyte, the cap engaging the second electrolyte container to hold the second electrolyte;wherein the bipolar wall assembly prevents ionic contact between the first and second electrolytes while permitting electrical coupling between the first and second electrolytes. [15.] An electrolytic hydrogen generating reactor comprising a plurality of cells stacked in series in a housing, the cells being separated by the bipolar wall assembly of claim 1. The electrolytic hydrogen generating reactor of claim 15 wherein the cells are biased together by a biasing member in the housing. [17.] The electrolytic hydrogen generating reactor of claim 15 comprising external positive and negative poles electrochemically coupled through the series of cells and electronically coupled through and external circuit. [18.] The electrolytic hydrogen generating reactor of claim 17 wherein the external circuit comprises a switch and an adjustable resistance. The electrolytic hydrogen generating reactor of claim 18 wherein the adjustable resistance has a positive temperature coefficient of resistivity.