Laminar electrical cells and batteries

DETAILED DESCRIPTION Having thus described the invention, what is claimed is: 1.
A laminar electrical cell comprising an anode comprising a solid deposit of zinc powder in a binder on a conductive plastic substrate, a cathode comprising a mixture of MnO.
sub.
2 and carbon particles, a cellophane separator beteween and in contact with said anode and said cathode, and a solution consisting essentially of from about 1 to 3 percent of NH.
sub.
4 Cl, from about 20 to 29 percent of ZnCl.
sub.
2, and the balance water, by weight based on the weight of solution, permeating said anode, said cathode, and said separator.
2.
The cell of claim 1, in which said solution contains 2 percent of NH.
sub.
4 Cl and 25 percent of ZnCl.
sub.
2.




Description:
This invention relates to electrical cells and batteries, and particularly to a novel laminar electrical cell and batteries incorporating the same.
Particularly since the widespread acceptance of color as the medium of choice for amateur photography, extensive efforts have been made to increase the capabilities of the photographic equipment available while retaining the operational simplicity of the box camera.
Since the existing lighting in many photographic situations is either inadequate or inappropriate for good photography, a supplemental illumination source, and preferably the portable rechargeable electronic flash unit, has been demanded as a part of the photographer's equipment.
As a result, cameras have been developed in which automatic focusing, automatic exposure control, self-processing film units, and automatic supplementary electronic flash illumination are all available under the control of an internal digital computer, and are brought into action by the same acts of framing and depressing a button which sufficed to make an exposure with a box camera.
In addition to those improvements in functional capability that have been included in the modern camera, a particular development of major importance in the simplification of the photographer's task has been the provision of a power supply for all of the elaborate exposure control apparatus for the camera in the form of a thin laminar battery incorporated in each film pack for use in the camera