JP6444877B2 - 被覆アルミニウム材とその製造方法 - Google Patents
被覆アルミニウム材とその製造方法 Download PDFInfo
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- JP6444877B2 JP6444877B2 JP2015539253A JP2015539253A JP6444877B2 JP 6444877 B2 JP6444877 B2 JP 6444877B2 JP 2015539253 A JP2015539253 A JP 2015539253A JP 2015539253 A JP2015539253 A JP 2015539253A JP 6444877 B2 JP6444877 B2 JP 6444877B2
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- aluminum
- aluminum material
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- carbon
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- 239000003990 capacitor Substances 0.000 claims description 15
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- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 description 33
- 238000000034 method Methods 0.000 description 20
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- 239000007789 gas Substances 0.000 description 5
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
- C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied
- C23C8/44—Carburising
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
- C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
- C23C8/64—Carburising
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/66—Current collectors
- H01G11/68—Current collectors characterised by their material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/66—Current collectors
- H01G11/70—Current collectors characterised by their structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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Description
(B)アルミニウム材と被覆層とを、炭化水素含有物質を含む空間に配置して、加熱する工程
本発明の被覆アルミニウム材の製造方法において、ニッケルの含有量が50質量ppmを超えたアルミニウム材に対して450℃以上の温度で加熱処理を施すと、ニッケルは熱拡散によってアルミニウム材の表面近傍に濃縮する。この濃縮層はアルミニウムの炭化物が局部的に集中して形成されることを助長するため、複数のシート状のアルミニウム材を積層した状態で、または、ロール状に巻かれた帯状のアルミニウム材の状態で、被覆アルミニウム材を製造した場合、被覆アルミニウム材同士のブロッキングが発生し、被覆アルミニウム材の製造が不可能になる。
厚みが50μm、以下の表1に示す組成のアルミニウム箔の両面に平均粒子径が300nmのカーボンブラック1重量部に対しブタノールを1重量部加えた塗工液を塗布した。次いで、これを温度100℃で10分間乾燥処理することにより、被覆層を形成した。このときの被覆層の形成は、乾燥後の被覆層厚みが片面1μmとなるように調整した。
表1に示す組成のアルミニウム箔を用いたこと以外は、実施例1と同様にして評価試料を作製した。
厚みが50μm、以下の表1に示す組成のアルミニウム箔の両面に、平均粒子径が10nmの酸化チタン粒子2重量部に対しポリビニルブチラール樹脂を1重量部、トルエン:メチルエチルケトン=1:1の混合溶液を7重量部加えた塗工液を塗布した。次いで、これを温度100℃で10分間乾燥処理することにより、被覆層を形成した。このときの被覆層の形成は、乾燥後の被覆層厚みが片面1μmとなるように調整した。
表1に示す組成のアルミニウム箔を用いたこと以外は、実施例4と同様にして評価試料を作製した。
厚みが50μm、以下の表1に示す組成のアルミニウム箔の両面に、平均粒子径が200nmのリン酸鉄リチウム粒子4重量部に対し、ポリビニルブチラール樹脂1重量部、トルエン:メチルエチルケトン=1:1の混合溶液を10重量部加えた塗工液を塗布した。次いで、これを温度100℃で10分間乾燥処理することにより、被覆層を形成した。このときの被覆層の形成は、乾燥後の被覆層厚みが片面1μmとなるように調整した。
表1に示す組成のアルミニウム箔を用いたこと以外は、実施例6と同様にして評価試料を作製した。
表1に示す組成のアルミニウム箔を用いたこと以外は、実施例1と同様にして評価試料を作製した。
表1に示す組成のアルミニウム箔を用いたこと以外は、実施例4と同様にして評価試料を作製した。
表1に示す組成のアルミニウム箔を用いたこと以外は、実施例6と同様にして評価試料を作製した。
各評価試料において重ね合わせられていない両端部をオートグラフ(株式会社島津製作所製、型番AG−1)に取り付け、それぞれの端部を互いに反対方向に引っ張った際の剥離強度を測定することにより、ブロッキングの状態を評価した。
テーピング法によって密着性を評価した。各評価試料を幅10mm、長さ50mmの短冊状に切り出し、被覆層の表面に、幅15mm、長さ70mmの接着面を有する粘着テープ(住友スリーエム株式会社製、商品名「スコッチテープ」)を押し当てた後、粘着テープを引き剥がして、密着性を次の式に従って評価した。
上記Aは、引き剥がし後の被覆層の重量(mg)、
上記Bは、引き剥がし前の被覆層の重量(mg)を示す。
Claims (6)
- アルミニウム材と、
前記アルミニウム材の表面上に形成された被覆層と、
前記アルミニウム材と前記被覆層との間に形成された、アルミニウム元素と炭素元素とを含む介在層とを備え、
前記被覆層は、炭素を含む層または無機物を含む層であり、
前記アルミニウム材において、ニッケルの含有量が0.5質量ppm以上、50質量ppm以下である、被覆アルミニウム材。 - 前記被覆アルミニウム材は、電極構造体を構成するために用いられる、請求項1に記載の被覆アルミニウム材。
- 前記電極構造体は、キャパシタの電極または集電体である、請求項2に記載の被覆アルミニウム材。
- 前記電極構造体は、電池の集電体または電極である、請求項2に記載の被覆アルミニウム材。
- ニッケルの含有量が0.5質量ppm以上、50質量ppm以下であるアルミニウム材の表面に被覆層を形成する工程と、
前記アルミニウム材と前記被覆層とを、炭化水素含有物質を含む空間に配置して、加熱する工程とを備え、
前記被覆層は、炭素を含む層または無機物を含む層である、被覆アルミニウム材の製造方法。 - 前記アルミニウム材と前記被覆層とを加熱する工程は、450℃以上、660℃未満の温度範囲で行われる、請求項5に記載の被覆アルミニウム材の製造方法。
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