Method for producing electrolytic copper foil
The present invention relates to a method for producing an electrolytic copper foil, the method enabling providing an electrolytic copper foil such that the electrical conductivity is 99% or more, the thickness is 10 μm or less, a problem of a bend is suppressed, the front side and the rear side are...
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| creator | Oguro, Ryoichi |
| description | The present invention relates to a method for producing an electrolytic copper foil, the method enabling providing an electrolytic copper foil such that the electrical conductivity is 99% or more, the thickness is 10 μm or less, a problem of a bend is suppressed, the front side and the rear side are flat, the tensile strength is 500 MPa or more, and the elongation percentage is 5.5% or more. The method for producing an electrolytic copper foil includes forming an electrolytic copper foil by using, as an electrolytic solution, a sulfuric acid-copper sulfate aqueous solution not containing a heavy metal other than a copper metal, using an insoluble anode and a cathode drum facing the insoluble anode, and passing a direct current between these electrodes, wherein, in the electrolytic solution, particular additives (A) to (E) are contained each in a particular amount, and the additive (D) and the additive (A) are each added in a ratio such that (D)/(A) is 0.2 to 0.7. |
| format | Patent |
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The method for producing an electrolytic copper foil includes forming an electrolytic copper foil by using, as an electrolytic solution, a sulfuric acid-copper sulfate aqueous solution not containing a heavy metal other than a copper metal, using an insoluble anode and a cathode drum facing the insoluble anode, and passing a direct current between these electrodes, wherein, in the electrolytic solution, particular additives (A) to (E) are contained each in a particular amount, and the additive (D) and the additive (A) are each added in a ratio such that (D)/(A) is 0.2 to 0.7.</description><language>eng</language><subject>APPARATUS THEREFOR ; BASIC ELECTRIC ELEMENTS ; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ; CHEMISTRY ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; ELECTROFORMING ; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ; METALLURGY ; PRINTED CIRCUITS ; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231003&DB=EPODOC&CC=US&NR=11773501B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231003&DB=EPODOC&CC=US&NR=11773501B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Oguro, Ryoichi</creatorcontrib><title>Method for producing electrolytic copper foil</title><description>The present invention relates to a method for producing an electrolytic copper foil, the method enabling providing an electrolytic copper foil such that the electrical conductivity is 99% or more, the thickness is 10 μm or less, a problem of a bend is suppressed, the front side and the rear side are flat, the tensile strength is 500 MPa or more, and the elongation percentage is 5.5% or more. The method for producing an electrolytic copper foil includes forming an electrolytic copper foil by using, as an electrolytic solution, a sulfuric acid-copper sulfate aqueous solution not containing a heavy metal other than a copper metal, using an insoluble anode and a cathode drum facing the insoluble anode, and passing a direct current between these electrodes, wherein, in the electrolytic solution, particular additives (A) to (E) are contained each in a particular amount, and the additive (D) and the additive (A) are each added in a ratio such that (D)/(A) is 0.2 to 0.7.</description><subject>APPARATUS THEREFOR</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS</subject><subject>CHEMISTRY</subject><subject>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>ELECTROFORMING</subject><subject>ELECTROLYTIC OR ELECTROPHORETIC PROCESSES</subject><subject>MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS</subject><subject>METALLURGY</subject><subject>PRINTED CIRCUITS</subject><subject>PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZND1TS3JyE9RSMsvUigoyk8pTc7MS1dIzUlNLinKz6ksyUxWSM4vKEgtAqrIzOFhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfGhwYaG5ubGpgaGTkbGxKgBAOfIKpM</recordid><startdate>20231003</startdate><enddate>20231003</enddate><creator>Oguro, Ryoichi</creator><scope>EVB</scope></search><sort><creationdate>20231003</creationdate><title>Method for producing electrolytic copper foil</title><author>Oguro, Ryoichi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US11773501B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2023</creationdate><topic>APPARATUS THEREFOR</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS</topic><topic>CHEMISTRY</topic><topic>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>ELECTROFORMING</topic><topic>ELECTROLYTIC OR ELECTROPHORETIC PROCESSES</topic><topic>MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS</topic><topic>METALLURGY</topic><topic>PRINTED CIRCUITS</topic><topic>PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>Oguro, Ryoichi</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Oguro, Ryoichi</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for producing electrolytic copper foil</title><date>2023-10-03</date><risdate>2023</risdate><abstract>The present invention relates to a method for producing an electrolytic copper foil, the method enabling providing an electrolytic copper foil such that the electrical conductivity is 99% or more, the thickness is 10 μm or less, a problem of a bend is suppressed, the front side and the rear side are flat, the tensile strength is 500 MPa or more, and the elongation percentage is 5.5% or more. The method for producing an electrolytic copper foil includes forming an electrolytic copper foil by using, as an electrolytic solution, a sulfuric acid-copper sulfate aqueous solution not containing a heavy metal other than a copper metal, using an insoluble anode and a cathode drum facing the insoluble anode, and passing a direct current between these electrodes, wherein, in the electrolytic solution, particular additives (A) to (E) are contained each in a particular amount, and the additive (D) and the additive (A) are each added in a ratio such that (D)/(A) is 0.2 to 0.7.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY PRINTED CIRCUITS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
| title | Method for producing electrolytic copper foil |
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