Agency of Industrial Science and Technology

Ministry of International Trade & Industry

Isao Ogino

Osamu Nakamura

Teruo Kodama

Yoshizo Miyake

Yuria Saito

Yoshifumi Yamamoto

Masakazu Adachi

An ionic conductor comprising an oxide Na.sup.+ ionic conductor represented by the formula Na.sub.4 Zr.sub.2 Si.sub.3 O.sub.12 and a solid superacid represented by the formula SO.sub.4.sup.2- /ZrO.sub.2 incorporated therein as a dispersoid.

Ionic conductor

A hydrogen-oxygen solid electrolyte fuel cell using Cu.sub.2 O as a cathode catalyst.

Hydrogen-oxygen solid electrolyte fuel cell

The humidity of a gas is adjusted by passing the gas through a plurality of compartments containing the saturated aqueous solution of a salt thereby imparting a prescribed value of humidity to the gas.

Method for adjusting the humidity of gas to a constant value

The humidity of a gas is adjusted by passing the gas through a plurality of compartments or chambers within a closed container containing the saturated aqueous solution of a salt thereby imparting a prescribed value of humidity to the gas. A plurality of partition walls are disposed at fixed intervals within the closed container defining a plurality of chambers having upper and lower interior portions and having openings formed therein alternately open into the upper and lower portions of the chambers.

Apparatus for adjusting the humidity of gas to a constant value

In the conversion of chemical energy into electric energy by the electrochemical reaction of a gaseous anodic reactant and a gaseous cathodic reactant through the medium of a heteropoly acid solid electrolyte, the life of the solid electrolyte is notably increased by passing each reactant through pools of a saturated aqueous solution of a specific salt bordering on closed empty spaces thereby allowing the reactants to acquire prescribed humidities prior to the contact thereof with the anode and cathode.

Method for conversion of chemical energy to electric energy

Disclosed is a proton permselective solid-state member which is formed of a heteropoly acid represented by the generic formula, H.sub.m [X.sub.x.sup.. Y.sub.y.sup.. O.sub.z ].sup.. nH.sub.2 O, or a salt thereof. Said permselective member can be used as an electrolyte in the fuel cell and as a permselective membrane in the hydrogen gas refining system.

Growing community of inventors

Minoo, Japan

Isao Ogino