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Electrical power storage apparatus

  • US 5,196,275 A
  • Filed: 12/31/1990
  • Issued: 03/23/1993
  • Est. Priority Date: 07/19/1990
  • Status: Expired due to Fees
First Claim
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1. An electrical power storage system comprising:

  • an electrical power storage unit having at least one rechargeable electrical cell which comprises;

    a pair of generally planar outer electrode means configured to define therebetween an interior space for an electrical power storage medium; and

    inner electrode means removably mounted between said pair of outer electrode means so as to be in electrically conductive contact with said electrical power storage medium and defining a plurality of volumes each having a pair of open ends, each open end facing an adjacent outer electrode means; and

    means for replacing a discharged volume of said electrical power storage medium with a charged volume of said electrical power storage medium,wherein said cell is a metal-gas battery cell and said electrical power storage medium contained in said interior space comprises a bed of power storage slurry containing active metal particles saturated with an electrolyte solution, said pair of outer electrode means defines an opening communicating with said interior space, said plurality of volumes are configured to contain portions of the bed of slurry, and said inner electrode means is configured for removal from said interior space via said opening, thereby causing the simultaneous removal of the bed of slurry from said interior space, andwherein said means for replacing a discharge volume comprises;

    means for removing said inner electrode means from said interior space so as to remove therefrom the discharged volume of the electrical power storage medium,means for immersing said inner electrode means in a body of charged slurry so as to enable the charged slurry to flow into and fill each of said plurality of volumes, andmeans for replacing said inner electrode means in said interior space.

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