Multi-ply laminar pasted air electrodes
AssigneeWestinghouse Electric Corp.
InventorJacob Chottiner
Life of this patent
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Abstract
An air electrode, for use in electrochemical energy cells, is made, comprising a multi-layer hydrophilic section, consisting of at least two substantially uncompacted laminated layers of plaques cntaining loaded, catalytically active battery material; each loaded plaque consisting of a 75% porous to 95% porous metal current collector, having between about 45% to about 95% of its pore volume filled with the active material, where the weight ratio of active material:plaque current collector in the laminated layers is between 0.40:1 and 2.80:1.
Claims13
An electrode, for use in an electrochemical energy cell, comprising:
- a multi-layer hydrophilic section consisting of at least two, substantially uncompacted, contacting, laminated plaques containing loaded, catalytic active battery material;
- each of the separate loaded plaques consisting of an integral 75% porous to 95% porous metal current collector surrounded by catalytic active material and having between about 45% to about 95% of the pore volume within the plaque structure filled with the catalytic active material after loading, wherein the hydrophilic section does not contain a separate, thick, active material layer attached thereto, and the weight ratio of catalytic active material:
- plaque current collector in the laminated layers is between 0.40:1 and 2.0:1.
An electrode, for use in electrochemical energy cells, comprising:
- A. a multi-layer hydrophilic section having a thickness of between about 0.010 inch to about 0.150 inch, consisting of from 3 to 8 substantially uncompacted, contacting, laminated plaques containing loaded, catalytic active battery material primarily within its structure, to provide catalytic active sites within the plaques;
- each of the separate loaded plaques consisting of an integral, 75% porous to 95% porous, about 0.005 inch to about 0.050 inch thick diffusion bonded metal fiber current collector surrounded by catalytic active material and having between about 45% to about 95% of the pore volume within the plaque structure filled with the catalytic active material, wherein the hydrophilic section does not contain a separate, thick, active material layer attached thereto, and the weight ratio of catalytic active material:plaque current collector in the laminated layers is between 0.40:1 and 2.80:1, and
- B. a hydrophobic layer bonded to the multi-layer hydrophilic section.
Dependencies are inferred from the claim text.