CURRENT COLLECTOR

A current collector for an electrochemical element including an aluminum foil showing a peak in the range between 945 cm-1 and 962 cm-1 in measurement of a surface layer of the aluminum foil by Fourier transform infrared spectroscopy. The current collector can be obtained by a manufacturing method w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAMAGUCHI TOMOFUMI, YOKOUCHI HITOSHI, OHMORI MASAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMICAL SURFACE TREATMENT CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CONDUCTORS DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 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 INSULATORS METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES SEMICONDUCTOR DEVICES 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 TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	A current collector for an electrochemical element including an aluminum foil showing a peak in the range between 945 cm-1 and 962 cm-1 in measurement of a surface layer of the aluminum foil by Fourier transform infrared spectroscopy. The current collector can be obtained by a manufacturing method which includes the steps of: preparing an aluminum foil material; washing a surface of the aluminum foil material with a chemical solution capable of dissolving aluminum such as hydrochloric acid, aqueous nitric acid, aqueous sulfuric acid, aqueous solutions of alkali metal hydroxides and aqueous solutions of alkaline earth metal hydroxides; and optionally heat treating the aluminum foil at 70 to 200° C. and/or forming a coated layer including an electrically conducive material, on one or both surfaces of the aluminum foil.