Charge storage device

  • US 6,920,034 B2
  • Filed: 08/07/2003
  • Issued: 07/19/2005
  • Est. Priority Date: 12/05/1998
  • Status: Expired due to Term
First Claim
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1. A charge storage device comprising:

  • a charge storage cell including;

    (a) a first electrode;

    (b) a second electrode being opposed to and spaced apart from the first electrode; and

    (c) a porous separator disposed between the electrodes;

    a sealed package for containing the cell and an electrolyte in which the cell is immersed; and

    at least two terminals extending from the package to allow external electrical connection to the cell, wherein the volumetric FOM (Figure of Merit) of the device is greater than about 3.2 Watts/cm3 and the maximum operating voltage of the cell is less than about 4 Volts.

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