METHOD TO MANUFACTURE SEPARATOR FOR BATTERY, INSTRUMENT THEREOF AND ALKALINE BATTERY

PROBLEM TO BE SOLVED: To provide a method to manufacture a separator having a highly sulfonated level of poly-olefinic resin fiber to reduce self discharging, in which large facilities are not required in the factory with good productivity. SOLUTION: In the said method, sheet-like fabrics of poly-ol...

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Hauptverfasser:	HIDAKA HIDEJI, TANAKA TOSHIO, YOSHIO SHIGEHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BRAIDING COTTON-WOOL ELECTRICITY FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR KNITTING LACE-MAKING LAUNDERING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL NON-WOVEN FABRICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TEXTILES TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method to manufacture a separator having a highly sulfonated level of poly-olefinic resin fiber to reduce self discharging, in which large facilities are not required in the factory with good productivity. SOLUTION: In the said method, sheet-like fabrics of poly-olefinic resin fiber are treated in a solution of sulfuric acid to manufacture a sulfonated separator for a battery. The concentration of sulfuric acid is 90 wt.% or more between 125-145 deg.C. The tension for the sheet-like fabrics in a solution of sulfuric acid is controlled in a range of 10-3,000 g/50 mm.