Amorphous thin film electrode materials from hydrous metal oxides
Patent 5600535 Issued on February 4, 1997. Estimated Expiration Date: 
December 9, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 9, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.InventorsAssigneeApplicationNo. 353418 filed on 12/09/1994US Classes:361/503, Liquid electrolytic capacitor29/25.03, Electrolytic device making (e.g., capacitor)361/508, Anode type electrode361/516Cathode type electrode (e.g., cathode casing)ExaminersPrimary: Picard, Leo P.Assistant: Dinkins, Anthony Attorney, Agent or FirmInternational ClassesH01G 009/00H01G 009/04 H01G 009/042 AbstractThis invention relates to a novel electrode material for electrochemical ) capacitors. This invention also relates to a novel method for making such electrode. The electrode material is an amorphous phase of ruthenium oxide formed directly on titanium (Ti) substrate. The method is the application of heat on the Ti substrate which is wetted by metal alkoxide precursor. The method produces film which adheres to the substrate before and after charge/discharge cycling. As a result, the EC capacitors made of the electrode exhibit high power and also high energy which is higher than that of the traditional crystalline phase of ruthenium oxide thin film on Ti. This type of capacitor is especially suited for burst communication which requires energy with high power density, high energy density, and high cycle life at medium to low voltages (10-20 volts).Field of SearchLiquid electrolytic capacitorAnode type electrode Aluminum or tantalum With significant electrolyte Cathode type electrode (e.g., cathode casing) Utilizing coated electrode Heating or drying pretreatment Metal base Metal-containing coating (e.g., cermet, etc.) Metal base Metallic compound-containing coating Electrolytic device making (e.g., capacitor) | |
