JP6860706B2 - 接着性に優れる銅箔 - Google Patents
接着性に優れる銅箔 Download PDFInfo
- Publication number
- JP6860706B2 JP6860706B2 JP2020004660A JP2020004660A JP6860706B2 JP 6860706 B2 JP6860706 B2 JP 6860706B2 JP 2020004660 A JP2020004660 A JP 2020004660A JP 2020004660 A JP2020004660 A JP 2020004660A JP 6860706 B2 JP6860706 B2 JP 6860706B2
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- JP
- Japan
- Prior art keywords
- copper foil
- electrolytic copper
- void volume
- value
- drum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 114
- 239000011889 copper foil Substances 0.000 title claims description 111
- 239000011800 void material Substances 0.000 claims description 48
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 27
- 229910001416 lithium ion Inorganic materials 0.000 claims description 24
- 238000004062 sedimentation Methods 0.000 claims description 9
- 239000011247 coating layer Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 7
- 239000007773 negative electrode material Substances 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- DQIPXGFHRRCVHY-UHFFFAOYSA-N chromium zinc Chemical compound [Cr].[Zn] DQIPXGFHRRCVHY-UHFFFAOYSA-N 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 22
- 239000011149 active material Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 8
- 239000011267 electrode slurry Substances 0.000 description 8
- 239000011162 core material Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000008151 electrolyte solution Substances 0.000 description 6
- 238000004070 electrodeposition Methods 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 230000003449 preventive effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- -1 methods Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000007718 adhesive strength test Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- VZDYWEUILIUIDF-UHFFFAOYSA-J cerium(4+);disulfate Chemical compound [Ce+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O VZDYWEUILIUIDF-UHFFFAOYSA-J 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
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- C—CHEMISTRY; METALLURGY
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
- H05K1/0242—Structural details of individual signal conductors, e.g. related to the skin effect
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/382—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
- H05K3/384—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal by plating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
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- C—CHEMISTRY; METALLURGY
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/04—Electroplating: Baths therefor from solutions of chromium
- C25D3/08—Deposition of black chromium, e.g. hexavalent chromium, CrVI
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- C—CHEMISTRY; METALLURGY
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- C25D3/38—Electroplating: Baths therefor from solutions of copper
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Description
電解銅箔の製造
電解銅箔は、回転可能な金属カソードドラム及び不溶性金属アノードを使用して製造された。不溶性金属アノードは、金属カソードドラムのほぼ下半部に配置され、当該金属カソードドラムを囲んだ。金属カソードドラムと不溶性金属アノードとの間に硫酸銅電解液を流させ、カソードとアノードとの間に電流を印加し、金属カソードドラムに銅の電着をさせることにより、連続電着を使用して電解銅箔を形成した。
電解液の成分及びメッキ条件は下記の通りで提供された。
硫酸(50重量%):75g/L
硫酸銅(CuSO4・5H2O):280g/L
塩素イオン濃度:15mg/L(塩酸由来、RCI Labscan社から購入)
硫酸セリウム(Ce(SO4)2):0〜55mg/L(Sigma−Aldrichから購入)
液体温度:40℃
電流密度:33〜65A/dm2
CrO3:1500mg/L(Sigma−Aldrichから購入)
液体温度:25℃
電流密度:0.5A/dm2
メッキ時間:1秒間
積層型リチウムイオン二次電池を下記のように製造し、高cレート(high c−rate)の充放電試験を行った。
実施例1〜7、比較例1〜5
表2は、電解銅箔の実施形態を例示的に説明する設計実験を示す。アノードバッグの欄において、Xはアノードバッグなし、Oはアノードバッグあり、と示す。表3は、電解銅箔の得られた特性または特徴を示す。Vvの欄において、Δは沈積面とドラム面との間のVvの差(絶対値)を表す。湿潤接着力は、後記の「湿潤接着力試験」で述べたように製造された負極の湿潤接着力である。各行には、7つの実施例(E.1〜E.7)と5つの比較例(C.1〜C.5)が並んでいる。
・容積パラメータ
表3における空隙容積(Vv)の値は、ISO25178−2(2012)に準じた工程により、実施例及び比較例から得られた。表面テクスチャ解析はレーザー顕微鏡の画像で行った。レーザー顕微鏡はOlympus社製のLEXTOLS5000−SAFであり、画像は空気温度24±3℃及び相対湿度63±3%で撮られた。フィルタ設定はフィルタなし(unfiltered)と設定された。光源は405nm波長源であった。対物レンズは100×拡大倍率(MPLAPON−100xLEXT)であった。光学ズームは1.0×と設定された。画像面積は129μm×129μmと設定された。解析度は1024画素×1024画素と設定された。条件はオートチルト除去(auto tilt removal)と設定された。
単位面積重量は、単位面積あたりの重量である。100mm×100mmの試験サンプルを用いて面積を測定した。重量は、精密天秤(AG−204型、メトラー・トレド社(Mettler Toledo International Inc.)製)で測定され、単位面積重量は、重量を面積で割って計算し、グラム/平方メートル(g/m3)という単位に換算した。
銅箔の表面に負極スラリーを5m/minの速度で200μmの厚さになるまでに塗布し、160℃のオーブンで乾燥することにより、負極を製造した。次に、プレス機を使用して、プレス速度1m/minおよび圧力3000psiで負極をプレスした。当該プレス機のローラーの寸法はφ250mm×幅250mmであり、ローラーの硬度は62〜65HRCであり、ローラーの材料は高炭素クロム軸受鋼(SUJ2)であった。次いで、負極を試験片として10cm×10cmの片材に切断し、60℃の電解液(LBC322−01H、深セン新宙邦科技株式会社製)に4時間浸漬した。負極スラリーが銅箔から剥離したり、または銅箔間で膨潤した場合は、不合格とみなされた。逆に、層間剥離または膨潤がなければ、合格とみなされた。
疲労寿命は、標準試験方法IPC−TM−6502.4.2.1を使用して試験された。簡単に言えば、この方法は、薄いストリップ形の試験サンプル(例えば、電解銅箔)を、おもりが吊られたホルダーに取り付けた後、設定された直径を有するマンドレルを使用して、試験サンプルの中心を素早に上下に振動することを含む。試験は、3FDF型疲労延性試験機(Jovil Universal Manufacturing社製)を使用して行われた。試験サンプルは、12.7mm×200mmの電解銅箔のストリップであった。試験条件は次のとおりである。マンドレルの直径=0.8mm、振動速度=100振動/分、張力を与えるためのおもり=84.6g。試験のために、試験サンプルがサンプルホルダーから滑らないように、試験サンプルを粘着テープでサンプルホルダーに取り付けた。さらに、サンプリング方向については、その長辺(200mm)が機械方向と平行になるように各試験サンプルを切断した。
112 ホール
mr1 負荷率
mr2 負荷率
114、210、212、214、216 領域
Claims (15)
- ドラム面と、
前記ドラム面の反対側にある沈積面と、
を含む電解銅箔であって、
前記沈積面は、0.17〜1.17μm3/μm2である空隙容積(Vv)の値を有し、前記ドラム面は、0.17〜1.17μm 3 /μm 2 である空隙容積(Vv)の値を有する、電解銅箔。 - 前記ドラム面及び前記沈積面の少なくとも一つは、0.16〜1.07μm3/μm2であるコア空隙容積(Vvc)の値をさらに有する、請求項1に記載の電解銅箔。
- 前記ドラム面及び前記沈積面は、それぞれ、0.16〜1.07μm3/μm2であるコア空隙容積(Vvc)の値をさらに有する、請求項1または2に記載の電解銅箔。
- 前記ドラム面及び前記沈積面の少なくとも一つは、0.01〜0.10μm3/μm2である谷部空隙容積(Vvv)の値をさらに有する、請求項1〜3のいずれか一項に記載の電解銅箔。
- 前記ドラム面及び前記沈積面は、それぞれ、0.01〜0.10μm3/μm2である谷部空隙容積(Vvv)の値をさらに有する、請求項1〜4のいずれか一項に記載の電解銅箔。
- 5回/μmを超える疲労寿命/厚さをさらに有する、請求項1〜5のいずれか一項に記載の電解銅箔。
- 前記疲労寿命/厚さは、8〜40回/μmである、請求項6に記載の電解銅箔。
- 2μm〜25μmである厚さを有する、請求項1〜7のいずれか一項に記載の電解銅箔。
- 前記電解銅箔の表面は、亜鉛−クロム塗布層、クロム塗布層、及び有機塗布層からなる群から選ばれる少なくとも一つの塗布層を含む、請求項1〜8のいずれか一項に記載の電解銅箔。
- 前記電解銅箔の表面は、クロムメッキ層を含む、請求項1〜9のいずれか一項に記載の電解銅箔。
- 請求項1〜10のいずれか一項に記載の電解銅箔を含む、リチウムイオン二次電池用の集電体。
- 前記電解銅箔の沈積面と接触する負極活物質をさらに含む、請求項11に記載の集電体。
- 前記電解銅箔のドラム面と接触する負極活物質をさらに含む、請求項11または12に記載の集電体。
- 請求項11〜13のいずれか一項に記載の集電体を含む、リチウムイオン二次電池。
- 請求項14に記載のリチウムイオン二次電池を含む、装置。
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KR20230009650A (ko) | 2021-07-09 | 2023-01-17 | 주식회사 다이브 | 반도체용 동박의 제조방법 및 이를 이용한 반도체용 동박 |
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JP2021527760A (ja) * | 2019-02-01 | 2021-10-14 | 長春石油化學股▲分▼有限公司 | 電着銅箔および電極ならびにそれを含むリチウムイオン二次電池 |
JP7030239B2 (ja) | 2019-02-01 | 2022-03-04 | 長春石油化學股▲分▼有限公司 | 電着銅箔および電極ならびにそれを含むリチウムイオン二次電池 |
US11283080B2 (en) | 2019-02-01 | 2022-03-22 | Chang Chun Petrochemical Co., Ltd. | Electrodeposited copper foil, current collector, electrode, and lithium ion secondary battery comprising the same |
US11362337B2 (en) | 2019-02-01 | 2022-06-14 | Chang Chun Petrochemical Co., Ltd. | Electrodeposited copper foil and electrode, and lithium-ion secondary battery comprising the same |
KR20230009650A (ko) | 2021-07-09 | 2023-01-17 | 주식회사 다이브 | 반도체용 동박의 제조방법 및 이를 이용한 반도체용 동박 |
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