High temperature sodium based electrochemical cell.

摘要

A cell (10) of the high temperature type based on sodium comprises an outer casing in steel (12) coated with nickel, having an elongated parallelepiped shape, a ceramic electrolyte (14) in the form of a tubular body made of β-alumina inserted in said outer casing, a plurality of capillary profiles consisting of shaped laminations (16), arranged between said outer casing (12) and ceramic electrolyte (14) with respect to which they leave an interspace, and a current collector (18) made of metal material coaxially inserted and stabilized in the ceramic electrolyte (14). Said current collector is formed by a tubular body defining a cavity at least partly filled with PCM material (Phase Change Materials).