Coin cell fabrication

This battery was fabricated and tested under a coin-type cell configuration [80, 81]. The overall process of this battery is shown in Equation 7.6. 

Fabrication of a battery or a cell determines how the device will function and how much it will cost to construct it. Several primary cells with aqueous electrolytes seem to use a single electrodes arranged in parallel or concentric configuration. Specific construction of this type of cell includes cylindrical or bobbin button, and coin. Small secondary cells use a wound or jelly roll construction feature, in which long thin electrodes are wound into a cylinder and placed in a metallic housing or container. This particular cell construction yields higher power density, but it... 

Another potential approach is an all-polymer cell using a cation-doped polymer for the anode, a solid polymer electrolyte, and a polymer for the cathode. These cells can be fabricated in thin sections and in a variety of shapes but, again, most of the development has been in small coin sizes. No progress on these systems has been reported recently. 

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