Alkali storage cell employing a spongelike metal substrate

PCT No. PCT/JP96/02993 Sec. 371 Date Jun. 17, 1997 Sec. 102(e) Date Jun. 17, 1997 PCT Filed Oct. 16, 1996 PCT Pub. No. WO97/15088 PCT Pub. Date Apr. 24, 1997A belt-shaped spongelike organic high polymer sheet is subjected to stretching forces in the longitudinal and lateral directions so as to trans...

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Hauptverfasser:	YAMAWAKI, AKIFUMI, TADOKORO, MOTOO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CASTING CHEMISTRY ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WORKING METALLIC POWDER
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Zusammenfassung:	PCT No. PCT/JP96/02993 Sec. 371 Date Jun. 17, 1997 Sec. 102(e) Date Jun. 17, 1997 PCT Filed Oct. 16, 1996 PCT Pub. No. WO97/15088 PCT Pub. Date Apr. 24, 1997A belt-shaped spongelike organic high polymer sheet is subjected to stretching forces in the longitudinal and lateral directions so as to transform the approximately spindle-shaped organic high polymer units which compose the organic high polymer sheet. After this, a metal is put into voids inside the organic high polymer sheet. Then, the organic high polymer is eliminated by baking it, and the metal is sintered. As a result, a spongelike metal substrate is completed whose carbon content is 0.5% by weight or less and whose metallic lattices have a longer length/shorter length ratio of 1.7 or below. The spongelike metal substrate is filled with electrode active material to form an electrode, which is combined with a counter electrode and a separator, and coiled in the direction of the longer lengths of the lattices to form a coiled electrode assembly. The electrode assembly is used to manufacture an alkali storage cell.