Westinghouse Electric Corporation

Other

Caterpillar Industrial Inc.

Donald A Tryk

Arnold Z Gordon

Ernest B Yeager

M Sohrab Hossain

Coprecipitated hydrogels in pressure tolerant gas diffusion electrodes

Hydrogel loaded active layer in pressure tolerant gas diffusion

Gas diffusion cathodes, electrochemical cells and methods exhibiting

Ionomeric polymers with ionomer membrane in pressure tolerant gas

Gas diffusion electrodes, gas generating or consuming electrochemical cells utilizing such electrodes, and a method of preparing such electrodes are disclosed. The electrode comprises an electronically conductive porous body defining respective gas and electrolyte contacting surfaces. The electrode is prepared by forming the porous body, disposing the electrolyte contacting surface in contact with an electrolyte, and contacting the gas contacting surface with a gaseous atmosphere. Current is passed through the porous body at a degree of electrode polarization much higher than normal whereby modification of the electrode material is effected. If desired, a catalyst may be incorporated in the electrode and is subjected to pretreatment as well. The inventive electrodes exhibit superior voltage performance under oxygen polarization conditions.

Gas diffusion electrodes, electrochemical cells and methods exhibiting

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Cleveland Heights, OH, United States of America

Donald A Tryk