Electrochemical double layer capacitor having carbon powder electrodes
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United States of America Patent
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Oct 18, 2005
Grant Date -
Jun 19, 2003
app pub date -
Jan 30, 2003
filing date -
May 12, 2000
priority date (Note) -
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Abstract
A method of making an electrode structure, and a double layer capacitor including the electrode structure, the method includes the steps of: applying a first slurry including conducting carbon powder and a binder to a current collector plate; curing the applied first slurry to form a primary coating; applying a second slurry that includes activated carbon powder, a solvent and a binder to the primary coating; and curing the applied second slurry to form a secondary coating, thereby forming a first electrode. In variations, additional primary and secondary coatings may be formed on both sides of the collector plate.
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