US 4,049,885 A · Construction for solid electrolyte in sodium/sulfur battery

Abstract

A high surface area short diffusion path sodium/sulfur cell is provided having a plurality of half-cells in spaced-apart planes extending through the block in a first direction with a second group of half-cells in the planes intermediate the planes of the first group of half-cells extending through the block in a direction normal to the direction of the first group of half-cells. The construction is strong and stable, provides for large surface area contact with the cell reactants and avoids narrow passageways which result in high resistance. The sodium and sulfur can be circulated through the active cell volume during charging and discharging of the battery permitting large storage capacity. Current collection can be achieved employing graphite fibers twisted between aluminum wires, with the aluminum wires welded to an aluminum manifold.

Claims6

Dependent claims

A sodium-sulfur solid electrolyte battery wherein sodium is the negative electrode reactant and sulfur is the positive electrode reactant comprising:

a ceramic block having a plurality of parallel half-cells in spaced-apart planes in a first direction for negative electrode reactant and in a second direction normal to said first direction for positive electrode reactant;
means connected to said negative electrode half-cell for introducing negative electrode reactant into said negative electrode half-cell;
means connected to said positive electrode half-cell for circulating positive electrode reactant through said positive electrode half-cell;
and
means for collecting current from said positive electrode reactant in said positive electrode half-cell.

2 more elements

Dependencies are inferred from the claim text.

Construction for solid electrolyte in sodium/sulfur battery

Life of this patent

Construction for solid electrolyte in sodium/sulfur battery

Life of this patent

Abstract

Claims6