Means for improving manufacture of solid state cells
First Claim
1. A method for the manufacture of solid state cells comprising the steps of placing a radially rigid non-flexible wall retaining member within a compression die cavity, placing a smearable cathode material into said wall retaining member, with said wall retaining member separating said cathode material from the walls of said die, placing and compressing a solid electrolyte onto said cathode material, compressing an anode material onto said electrolyte, and retaining said wall retaining member as a component of said cell wherein said wall retaining member encloses all of the height of said cathode and at most, part of the height of said electrolyte.
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Abstract
The manufacture of solid state cells with smearable cathode materials subject to radial expansion during cell discharge is improved by the consolidation of such materials within a radially rigid non-flexible wall-retaining member which serves as a jig for the cathode during the fabrication of the cell, and which is thereafter retained in the cell structure to control such radial expansion.
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Citations
10 Claims
- 1. A method for the manufacture of solid state cells comprising the steps of placing a radially rigid non-flexible wall retaining member within a compression die cavity, placing a smearable cathode material into said wall retaining member, with said wall retaining member separating said cathode material from the walls of said die, placing and compressing a solid electrolyte onto said cathode material, compressing an anode material onto said electrolyte, and retaining said wall retaining member as a component of said cell wherein said wall retaining member encloses all of the height of said cathode and at most, part of the height of said electrolyte.
Specification