Secondary cell using hydroxide-ion-conductive ceramic separator
Abstract:
Provided is a secondary battery including a positive electrode, a negative electrode, an alkaline electrolytic solution, a separator structure, and a resin container. The separator structure includes a ceramic separator composed of an inorganic solid electrolyte exhibiting hydroxide ion conductivity and optionally a resin frame and/or resin film disposed to surround the periphery of the ceramic separator. The separator structure is bonded to the resin container with an adhesive, and/or the ceramic separator is bonded to the resin frame and/or the resin film with the adhesive. The adhesive is selected from an epoxy resin adhesive, a natural resin adhesive, a modified olefin resin adhesive, and a modified silicone resin adhesive, and the adhesive exhibits a variation in weight of 5% or less after immersed, in a solidified form, in a 9 mol/L aqueous KOH solution at 25° C. for 672 hours.
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