Abstract Battery plates for acid or alkaline batteries are made up of a multiplicity of perforated metallic foil elements stacked in face-to-face contact. The foil elements carry a surface deposit of battery active mass and the numerous perforations through the foil surfaces are generally uniformly distributed over the surface area. The holes in each foil element are substantially in register with the holes in the next adjacent foil element. In the stack, the foils are separated from one another by layers of battery active mass of at least twice the thickness of the foils. Electrical contact, in parallel among the foils, is attained by welding (or by other means of attaining a metallic conductive path) only at the periphery of the stack.
The battery plate of claim 1 wherein the foil elements are composed of nickel.
Claim 2
Dependent Claim
24 words
The battery plate of claim 1 wherein the hole area does not exceed 15 percent of the total external area of said battery plates.
Claim 3
Dependent Claim
44 words
A battery containing a suitable electrolyte and having a plurality of battery plates therein of the type set forth in claim 1 and having perforated insulating separators between adjacent battery plates with the perforations thereof substantially all in register with the foil element perforations.
Claim 4
Dependent Claim
19 words
The battery of claim 4 wherein the foil elements are composed of nickel and the electrolyte is potassium hydroxide.
Claim 5
Dependent Claim
40 words
A battery comprising a plurality of battery plates of the type set forth in claim 2 and having perforated insulating separators between battery plates of opposite polarity with the perforations therein substantially all in register with the foil element perforations.
Claim 6
Dependent Claim
30 words
The battery of claim 6 wherein the hole area of the battery plates and separators does not exceed 15 percent of the external area of said battery plate or separator.