DEGREASING METHOD FOR ALUMINIUM HARD FOIL, ALUMINIUM HARD FOIL, ALUMINIUM HARD FOIL ELECTRODE MEMBER, AND LITHIUM ION SECONDARY BATTERY USING SAID MEMBER

• Main Author: HIRAYAMA KATSUHISA
• Format: Patent
• Language: English
• Published: 11.12.2006
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; 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

An aluminum hard foil is degreased without reducing the hardness to improve the coating performance of coating material. A foil-rolled aluminum foil is subjected to a low- temperature heat treatment for holding the aluminum foil at 80 to 160 0C for 1 hour or more. The low-temperature heat treatment is preferably performed by subjecting the aluminum foil to batch processing with the aluminum foil coiled.