JP2012033295A - 蓄電デバイス容器用ステンレス箔、蓄電デバイス容器用樹脂被覆ステンレス箔、及びそれらの製造方法 - Google Patents
蓄電デバイス容器用ステンレス箔、蓄電デバイス容器用樹脂被覆ステンレス箔、及びそれらの製造方法 Download PDFInfo
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Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Laminated Bodies (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
【解決手段】CrがFeよりも多く含み、かつ、酸素を20mol%以上60mol%以下含む酸化物皮膜を有するステンレス箔であって、該酸化物皮膜の表面における、圧延方向の算術平均粗さRal、又は、圧延方向に対して直角方向の算術平均粗さRacが、0.1μm以上で該酸化物皮膜の表面の最大深さRt未満であり、Rtが、0.8μm以上で該ステンレス箔厚さの50%以下であり、該酸化物皮膜の厚みが6nm以上150nm未満であることを特徴とする蓄電デバイス容器用ステンレス箔、及びその製造方法である。
【選択図】なし
Description
(式中、R1、R2は各々独立に炭素数1〜12のアルキル基又は水素を、R3は炭素数1〜12のアルキル基、アリール基又は水素を示す。)
本発明に係るポリオレフィンは、これらの構成単位の単独重合体でも、2種類以上の共重合体であってもよい。繰り返し単位は、5個以上化学的に結合していることが好ましい。5個未満では高分子効果が発揮し難い。繰り返し単位を例示すると、プロペン、1-ブテン、1-ペンテン、4-メチル-1ペンテン、1-ヘキセン、1−オクテン、1-デセン、1-ドデセン等の末端オレフィンを付加重合した時に現われる繰り返し単位、イソブテンを付加したときの繰り返し単位等の脂肪族オレフィンや、スチレンモノマーの他に、o-メチルスチレン、m-メチルスチレン、p-メチルスチレン、o-エチルスチレン、m-エチルスチレン、o-エチルスチレン、o-t-ブチルスチレン、m-t-ブチルスチレン、p-t-ブチルスチレン等のアルキル化スチレン、モノクロロスチレン等のハロゲン化スチレン、末端メチルスチレン等のスチレン系モノマー付加重合体単位等の芳香族オレフィン等が挙げられる。例示すると、末端オレフィンの単独重合体である低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、直鎖状低密度ポリエチレン、架橋型ポリエチレン、ポリプロピレン、ポリブテン、ポリペンテン、ポリへキセン、ポリオクテニレン、ポリイソプレン、ポリブタジエン等が挙げられる。上記単位の共重合体を例示すると、エチレン-プロピレン共重合体、エチレン-ブテン共重合体、エチレン-プロピレン-ヘキサジエン共重合体、エチレン-プロピレン-5-エチリデン-2-ノルボ-ネン共重合体等の脂肪族ポリオレフィンや、スチレン系共重合体等の芳香族ポリオレフィン等が挙げられるが、これらに限定されるものではなく、上記の繰り返し単位を満足していればよい。また、ブロック共重合体でもランダム共重合体でもよい。また、これらの樹脂は単独もしくは2種類以上混合して使用してもよい。
Claims (6)
- 酸素を20mol%以上60mol%以下含み、かつ、CrをFeよりも多く含み、酸化物皮膜を有するステンレス箔であって、該酸化物皮膜の表面における、圧延方向の算術平均粗さRal、又は、圧延方向に対して直角方向の算術平均粗さRacが、0.1μm以上で該酸化物皮膜の表面の最大深さRt未満であり、Rtが、0.8μm以上で該ステンレス箔厚さの50%以下であり、該酸化物皮膜の厚みが6nm以上150nm未満であることを特徴とする蓄電デバイス容器用ステンレス箔。
- 請求項1記載の蓄電デバイス容器用ステンレス箔の両面もしくは片面に、ポリオレフィン系樹脂を積層してなることを特徴とする蓄電デバイス容器用樹脂被覆ステンレス箔。
- ステンレス箔の圧延方向の表面の算術平均粗さRals、又は、ステンレス箔の圧延方向に対して直角方向の表面に算術平均粗さRacsが、0.1μm以上で前記ステンレス箔の表面の最大深さRts未満であり、Rtsが、0.8μm以上で該ステンレス箔厚さの50%以下であるステンレス箔を、600℃以上800℃未満の温度で、還元雰囲気下にて焼鈍することを特徴とする請求項1に記載の蓄電デバイス容器用ステンレス箔の製造方法。
- 前記焼鈍を、0.5分以上3分以下行うことを特徴とする請求項3に記載の蓄電デバイス容器用ステンレス箔の製造方法。
- 前記焼鈍が、水素と水の分圧比H2/H2Oが10以上、露点40℃未満の雰囲気で600〜800℃の温度での熱処理である請求項3又は4に記載の蓄電デバイス容器用ステンレス箔の製造方法。
- 請求項3〜5のいずれか1項に記載の製造方法で得られた蓄電デバイス容器用ステンレス箔の両面もしくは片面に、ポリオレフィン樹脂を50質量%以上含有する樹脂組成物フィルムを加熱圧着して積層することを特徴とする蓄電デバイス容器用樹脂被覆ステンレス箔の製造方法。
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