STEEL FOIL FOR BATTERY CONTAINERS AND POUCH BATTERY CONTAINER PRODUCED FROM SAME

• Main Authors: IKEDA Yasuyuki, IWAMOTO Nobuhiro, TAKEMATSU Shinichi, YOSHIOKA Koh, HORIE Shinichirou
• Format: Patent
• Language: English; French; German
• Published: 27.12.2023
• Subjects: ALLOYS; APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRICITY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The present invention provides steel foil for battery containers, the steel foil being characterized in that the maximum value of the maximum principal strain in uniaxial deformation is not less than 0.25 and the maximum value of the maximum principal strain in planar strain deformation is not less than 0.1. The present invention is able to provide steel foil for battery containers that is capable of restraining cracking of a base material when subjected to a severe forming process for battery containers.