High power, high energy, hybrid electrode and electrical energy storage device made therefrom

Patent 5744258 Issued on April 28, 1998. Estimated Expiration Date:

December 23, 2016. 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.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Motorola, Inc.

Application

No. 774048 filed on 12/23/1996

US Classes:

429/3, HAVING PULSE FEATURE429/209, Electrode429/213, Organic component is active material429/218.1, Chemically specified inorganic electrochemically active material containing429/219, Silver component is active material429/222, Cadmium component is active material429/223, Nickel component is active material429/228, Lead oxide429/229, Zinc component429/231.5, Vanadium (V), chromium (Cr), niobium (Nb), molybdenum (Mo), titanium (Ti), or tungsten (W) component is active material429/231.6, Alkaline earth metal or magnesium (Mg) component is active material429/231.8, Carbon, graphite, or carbonaceous component is active material429/231.95The alkali metal is lithium

Examiners

Primary: Kalafut, Stephen

Attorney, Agent or Firm

Dorinski; Dale, Farley; Felipe J., Gardner; Kelly A.

International Class

H01M 004/36

Abstract

A hybrid electrode for a high power, high energy, electrical storage device contains both a high-energy electrode material (42) and a high-rate electrode material (44). The two materials are deposited on a current collector (40), and the electrode is used to make an energy storage device that exhibits both the high-rate capability of a capacitor and the high energy capability of a battery. The two materials can be co-deposited on the current collector in a variety of ways, either in superimposed layers, adjacent layers, intermixed with each other or one material coating the other to form a mixture that is then deposited on the current collector.