2 results about "Ammonium adipate" patented technology

This disclosure provides aluminum foil and a method for forming the same. The method includes: performing a multi-stage formation process on the aluminum foil, the multi-stage formation process including three to eight stages; wherein, for aluminum foil with a target formation withstand voltage greater than or equal to 145V and less than or equal to 185V, a first mixture of ammonium adipate and ammonium dihydrogen phosphate is used in the first stage of formation; for aluminum foil with a target formation withstand voltage greater than or equal to 105V and less than 145V, a second mixture of ammonium adipate and ammonium dihydrogen phosphate is used in the second stage of formation; for aluminum foil with a target formation withstand voltage greater than or equal to 65V and less than 105V, a third mixture of ammonium adipate and ammonium dihydrogen phosphate is used in the third stage of formation. By introducing ammonium dihydrogen phosphate in advance during the main formation stage for aluminum foils with different target formation withstand voltage ranges, and utilizing its electrochemical behavior at specific formation stages, the density and chemical stability of the oxide film are optimized, significantly improving the hydration resistance of the aluminum foil.

The invention provides an aluminum foil and a forming method thereof, and the method comprises the steps: carrying out a multi-stage formation process on the aluminum foil, and the multi-stage formation process comprises three to eight stages of formation processes; wherein a first mixed solution of ammonium adipate and ammonium dihydrogen phosphate is adopted in the first-stage formation for the aluminum foil with the target formation withstand voltage larger than or equal to 145 V and smaller than or equal to 185 V; a second mixed solution of ammonium adipate and ammonium dihydrogen phosphate is adopted in the second-stage formation of the aluminum foil with the target formation withstand voltage larger than or equal to 105 V and smaller than 145 V; and a third mixed solution of ammonium adipate and ammonium dihydrogen phosphate is adopted in the third-stage formation for the aluminum foil of which the target formation withstand voltage is greater than or equal to 65V and less than 105V. Aiming at aluminum foils of different target formation pressure-resistant sections, ammonium dihydrogen phosphate is introduced in advance in a main formation stage, and the compactness and chemical stability of an oxidation film are optimized by utilizing the electrochemical behavior of the ammonium dihydrogen phosphate in a specific formation stage, so that the hydration resistance of the aluminum foils is remarkably improved.