ELECTROCHEMICAL CELL STACK AND SEPARATOR THEREOF

To provide an electrochemical cell stack, suppressing chromium from being diffused from a separator to an air electrode side and also having high electrical conductivity, and a separator thereof.SOLUTION: According to an embodiment of the present invention, a separator for a flat-plate type electroc...

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Bibliographische Detailangaben
Hauptverfasser:	KOBAYASHI SHOHEI, ASAYAMA MASAHIRO, OSADA NORIKAZU, YOSHINO MASATO, MOGI RIKO, ASADA TAKATOSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	To provide an electrochemical cell stack, suppressing chromium from being diffused from a separator to an air electrode side and also having high electrical conductivity, and a separator thereof.SOLUTION: According to an embodiment of the present invention, a separator for a flat-plate type electrochemical cell stack that includes cells and separators stacked sequentially therein includes: a first protective film comprising a spinel type oxide and provided on a surface of the separator facing an air electrode of the cell; and a second protective film comprising a perovskite type oxide and provided on the first protective film.SELECTED DRAWING: Figure 1 【課題】セパレータから空気極側へのクロムの拡散を抑え、かつ高い電気伝導性を備えた電気化学セルスタックおよびそのセパレータを提供すること。【解決手段】本発明の実施形態によれば、セルとセパレータとが順次積層された平板型の電気化学セルスタックのセパレータであって、スピネル型の酸化物で構成され、前記セルの空気極と対向する前記セパレータの表面に設けられた第一の保護膜と、ペロブスカイト型の酸化物で構成され、前記第一の保護膜上に設けられた第二の保護膜と、を備える。【選択図】図１