Electrical energy storage device and method of charging and disc

Details Electrical energy storage device and method of charging and disc Electrical energy storage device and method of charging and disc

1994-02-28

1995-08-08

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Having diverse cells or diverse removable cells in a support...

429 50, 361434, 361503, H01M 1200

Patent

active

054397561

ABSTRACT:
Briefly, according to the invention, there is provided an energy storage device (5) with three electrodes. A first electrolyte (15)is situated between the first (10) and second (20) electrodes so that it is contact with each of the electrodes, forming a battery cell (80). A second electrolyte (25) is placed between the second (20) and third (30) electrodes so that it is also in contact with each electrode, forming an electrochemical capacitor (70). The battery and capacitor each share a common electrode (20). After charging, the energy storage device can be linked to an electrical device to power it by discharging the battery portion to provide a substantially constant voltage, and discharging the capacitor portion to provide a substantially constant current when the device requires higher levels of current than the battery portion is capable of providing.

REFERENCES:
patent: 3288641 (1966-11-01), Rightmire
patent: 3423642 (1969-01-01), Plehal et al.
patent: 3538394 (1970-11-01), Bourgault et al.
patent: 4830938 (1989-05-01), McCullough et al.
patent: 4900643 (1990-02-01), Eskra et al.
patent: 5147739 (1992-09-01), Beard

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