CONSTRUCTION OF PLANAR RECHARGEABLE OXIDE-ION BATTERY CELLS AND STACKS USING STAINLESS STEEL HOUSING STRUCTURES

摘要

This present invention describes the processing steps for constructing a rechargeable oxide-ion battery (ROB) cell using a cell membrane assembly 40 and a hollow metal housing structure 30 wherein assembly steps include: a) forming a membrane assembly 40 of air electrode 20, metal electrode 24 and electrolyte 22 therebetween; b) sealing the membrane assembly 40 to a surrounding frame 26; c) filling the hollow metal housing structure 30 with active material 32; d) forming electrical contact between the framed membrane assembly and the filled housing structure; and e) joining the framed membrane assembly and the active housing structure to form a ROB cell. This invention also describes the processing steps for assembling a ROB stack using the constructed cells including: f) installing cell-to-cell current collector 58 between the air electrode 20′ of a first ROB cell 80, and the central section of the bottom surface 70 of the metal housing structure 30′ of a second successive ROB cell 82; and g) forming insulation seal 72 between the top surface 74 of the picture frame of the first ROB cell and the bottom peripheral section 76 of the metal housing structure of the second successive ROB cell.