Flat batteries and method of making the same

DETAILED DESCRIPTION Having thus described the invention, what is claimed is: 1.
In a thin, flat laminar battery, a subassembly comprising a frame of liquid impervious insulating material at least the exterior surfaces of which comprise a thermoplastic hot melt adhesive material, means forming an opening within the periphery of said frame adapted to receive the components of an electrical cell, a cellophane separator wet with electrolyte on one surface of said frame covering said opening, a layer of gel electrolyte on said cellophane separator, a conductive plastic intercell connector over said cellophane separator and projecting beyond the boundaries thereof on all sides and thermally sealed to said frame, said intercell connector being within the boundaries of said frame, and a laminar zinc anode patch on said intercell connector in a region in registry with said opening and in contact with said gel electrolyte.
2.
The assembly of claim 1, in which said frame comprises two congruent laminae heat sealed together.
3.
The assembly of claim 1, in which said frame comprises a thin, flat monolithic loop of hot melt adhesive material.
4.
The assembly of claim 2, in which said laminae each comprises a thin, flat loop of non-woven fibrous separator material filled with hot melt thermoplastic adhesive.




Description:
This invention relates to primary batteries, and particularly to novel methods and apparatus for constructing thin, flat cells and batteries.
Copending U.
S.
application for Letters Patent Ser.
No.
684,370 was filed on May 7, 1976 by Edwin H.
Land for Electrical Cells and Batteries, and is assigned to the assignee of this application.
In application Ser.
No.
684,370, Leclanche cells are described which include wet slurry cathodes, cellophane separators, and dry patch anodes wet with gel electrolyte.
The objects of this invention are to facilitate the construction of thin, flat laminar batteries of the kind described in application Ser.
No.
684,370, while effecting improvements in the shelf life and current drain capability of laminar batteries