Hybrid energy storage device

• US 6,117,585 A
• Filed: 07/25/1997
• Issued: 09/12/2000
• Est. Priority Date: 07/25/1997
• Status: Expired due to Term

• Current Assignee: Amperex Technology Limited (TDK Corporation)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Lian, Keryn Ke, Wu, Han, Anani, Anaba A.
• Primary Examiner(s): Nuzzolillo, Maria
• Assistant Examiner(s): Ruthkosky, Mark
• Application Number:
  US08/900,588
• Time in Patent Office: 1,145 Days
• Field of Search: 429/9, 429/122
• US Class Current: 429/122
• CPC Class Codes: H01G 11/08 Structural combinations, e.g. assembly or connection, of hybrid or EDL capacitors with other electric components, at least one hybrid or EDL capacitor being the main component
• CPC Class Codes: H01G 11/12 Stacked hybrid or EDL capacitors
• CPC Class Codes: H01G 4/40 Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
• CPC Class Codes: H01M 10/4264 with capacitors
• CPC Class Codes: H01M 16/00 Structural combinations of different types of electrochemical generators
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A hybrid energy storage device (10) including first, second, and third electrodes (20, 25, 30), a first electrolyte (35) disposed between the first and second electrodes (20, 25), and a second electrolyte (40) disposed between the second and third electrode (25, 30). The first electrode (25), the first electrolyte (35), and the second electrode (25) form a battery, and the second electrode (25), the second electrolyte (40), and the third electrode (30) form a capacitor. The first and third electrodes (20, 30) are directly connected together so that the battery and capacitor are in parallel within the hybrid energy storage device (10).

Claims

1. A hybrid energy storage device, comprising:

first, second, and third electrodes;

a first electrolyte disposed between the first and second electrodes; and

a second electrolyte disposed between the second and third electrodes;

wherein the first electrode, the first electrolyte, and the second electrode form a battery, wherein the second electrode, the second electrolyte, and the third electrode form a capacitor, and wherein the first and third electrodes are electrically coupled together; and

wherein the hybrid energy storage device further comprises a conductor for directly connecting the first and third electrodes.