Silver is used for cathode current collection. It can be used in place of more expensive gold or platinum, but should not be used in fuel cells above 800°C “operating” temperatures as temperatures at the cell may rise above the melting point of silver.
Cathode ink is used to adhere the mesh to the cathode. Silver Ink can be used as well.
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Tips for Making Electrical Connections
Ensuring a solid connection between your electrodes and current collector is critical for obtaining good test results. Leveraging our experience in electrochemical testing, testing we have we offer the following suggestions for obtaining optimum results with our silver paste product.
Annealing conditions: 1°C per minute to 800°C, hold for 1 hr, cool to room temp.