JP5222214B2 - 燃料電池用ステンレス分離板及びその製造方法 - Google Patents
燃料電池用ステンレス分離板及びその製造方法 Download PDFInfo
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Description
<実施例及び比較例>
図5は、本発明に係るステンレス鋼板の接触抵抗を測定する接触抵抗測定装置を示した図面である。図5を参照すれば、ステンレス鋼板500の接触抵抗の測定のために、セル締結のための最適化した定数を得るために修正されたデービーズ方法(Davies method)を、ステンレススチール(Stainless Steel:SS)とカーボンペーパーとの間の接触抵抗を測定するために使用した。
本発明のステンレス分離板の腐蝕電流を測定するための測定装備としては、EG&G 273Aを使用した。腐蝕耐久性実験は、PEFC(Polymer Electrolyte Fuel Cell)の模写環境下で行われた。
表1、表2、及び表3を参照すれば、本発明の実施例のように表面改質及びコーティング層を形成した場合には、腐蝕電流が0.5〜1.0μA/cm2の間の値を有することがわかっており、接触抵抗の場合には、13〜18mΩ cm2の値を表していることがわかる。
(1)模写環境の耐食性及び接触抵抗の評価
本発明のステンレス分離板の燃料電池環境模写は、EG&G 273Aを使用した。80℃の0.1N H2SO4+2ppm HF溶液に試片を装入し、1時間の間O2バブリング後、試片に0.6V対SCEの定電圧を印加した。一定時間の間定電圧を印加した後、試片の耐食性及び接触抵抗を測定した。上記作業を繰り返しながら、長期間の間の燃料電池模写環境での耐食性及び接触抵抗の変化様相を評価した。
図6は、上記のような方法で測定された燃料電池模写環境の耐食性評価に対する結果を表しているグラプである。図6を参照すれば、実施例1及び比較例2は、初期にも、1、000時間経過後にも、腐蝕電流値が1μA/cm2以下に略一定に維持されていることがわかるが、比較例3の場合は、長時間経過後だけでなく、初期腐蝕電流値も1μA/cm2を超過していることがわかる。これは、比較例3においてCrN層の剥離(exfoliation)によるものであると判断される。
(1)長期耐久性の評価方法
反応ガスの供給のためにサーペンタイン流路を有する分離板を使用し、分離板の間に膜−電極接合体(Gore社のモデル名5710)とガス拡散層(SGL社のモデル10BA)とを置いた後、一定の圧力で締結して燃料電池セルを製作した。
図8は、上記実施例1、参考例4、参考例8,9、実施例10、参考例11,12、実施例13〜15、参考例16〜18、比較例1、及び比較例2の試片を、上記長期耐久性の評価方法に応じて2、000時間経過後の評価結果を示すグラプである。
図5に示された接触抵抗測定装置50を利用して、上記表4に示す参考例と比較例の試片500、即ちステンレス鋼板の接触抵抗を測定した。
上述の実施例1乃至参考例18と同一の方法で腐蝕電流を測定した。
表4を参照すれば、本発明の参考例のように、表面改質及び熱処理を本発明が提示する範囲でした場合、全てDOE基準を満足する範囲である、腐蝕電流が0.5〜0.7μA/cm2の間の値を有することがわかっており、接触抵抗は、12〜18mΩ cm2範囲の値を表していることがわかる。
(1)模写環境の耐食性及び接触抵抗の評価
上述の実施例1乃至参考例18と同一の方法で燃料電池模写環境での耐食性及び接触抵抗の変化様相を評価した。
図10は、上記のような方法で測定された燃料電池模写環境の接触抵抗評価に対する結果を表しているグラプである。図10を参照すれば、参考例19、21、23、及び26の場合、初期(0時間)にも、2、000時間経過後にも、接触抵抗値が20mΩ cm2以下に略一定に維持されていることがわかるが、比較例4及び比較例6〜比較例8の場合、初期には、先立って説明したように17.3〜17.5mΩ cm2の値を持っているが、2、000時間経過後には、40mΩ cm2を越える値を持つようになることがわかる。
(1)長期耐久性の評価方法
上述の実施例1乃至参考例18と同一の方法で長期耐久性を評価した。
図12は、上記参考例19、21、23、26及び比較例4、6〜8の試片を上記の長期耐久性の評価方法に応じて、2、000時間経過後の評価結果を示すグラプである。図12を参照すれば、比較例4、6〜8の場合、初期には0.6V以上の発生電圧を持っているが、2、000時間経過後、発生電圧が0.57V程度に低下することがわかる。
Claims (12)
- 燃料電池用金属分離板の製造方法であって、
(a)ステンレス鋼板母材を用意する段階と、
(b)前記ステンレス鋼板母材の表面層の鉄(Fe)成分を低減させて、前記ステンレス鋼板の表面に、クロム(Cr)成分の相対的な量が増加された Cr−rich不動態被膜を形成する表面改質段階と、
(c)表面改質された前記ステンレス鋼板母材の表面に、金属窒化物層 (MNx)、金属/金属窒化物層(M/MNx)、金属炭化物層(MCy)、金属ホウ素化物層(MBz)のうちから選択されるコーティング層を形成する段階と
を備え、
前記(b)段階を経た後、前記ステンレス鋼板の表面層を構成する厚さ5〜100nmの不動態被膜は、Cr成分の含量比が20〜75wt%で、Fe成分の含量比が30wt%以下で、原子量の比率で(Cr+Ni)/Feの比率が1以上であり、
前記(c)段階において、適用された金属(M)は、クロム(Cr)であり、
前記コーティング層は、30〜100nmの厚さを有する膜(film)の形態に形成することを特徴とする燃料電池用金属分離板の製造方法。
(前記xは、0.5≦x≦1、yは、0.42≦y≦1、zは、0.5≦z≦2の値である。) - 前記(b)段階の表面改質工程は、硫酸(H2SO4)と硝酸(HNO3)を含む表面改質溶液に沈積させるか、または前記表面改質溶液をステンレス鋼板母材の表面にスプレーすることにより行われる、ことを特徴とする請求項1に記載の燃料電池用ステンレス分離板の製造方法。
- 前記(b)段階の表面改質工程は、硫酸(H2SO4)を含む表面改質溶液に沈積し、0Vを超過し1.0VまでのSHE領域で電位(又は電流)を印加することにより行われる、ことを特徴とする請求項1に記載の燃料電池用ステンレス分離板の製造方法。
- 前記表面改質溶液は、過酸化水素(H2O2)とオキサル酸(C2H2O4: oxalic acid)のうちから選択される一つ以上の添加物を更に含む、ことを特徴とする請求項2に記載の燃料電池用ステンレス分離板の製造方法。
- 前記(c)段階において、前記コーティング層は、スパッタリング法又はアークイオンメッキ法により形成される、ことを特徴とする請求項1に記載の燃料電池用ステンレス分離板の製造方法。
- 前記スパッタリング法は、活性スパッタリング(reactive sputtering)である、ことを特徴とする請求項5に記載の燃料電池用ステンレス分離板の製造方法。
- 前記ステンレス鋼板母材は、16〜28wt%のクロム成分を有する、ことを特徴とする請求項1に記載の燃料電池用ステンレス分離板の製造方法。
- 燃料電池用ステンレス分離板であって、
ステンレス鋼板母材と、
前記ステンレス鋼板母材の表面に形成された厚さ5〜100nmのクロム(Cr)成分の含量比が20〜75wt%で、鉄(Fe)成分の含量比が30wt%以下で、原子量の比率で(Cr+Ni)/Feの比率が1以上であるCr−rich不動態被膜と、
前記不動態被膜上に、30〜100nmの厚さで形成され、金属窒化物層(MNx)、金属/金属窒化物層(M/MNx)、金属炭化物(MCy)、金属ホウ素化物(MBz)のうちから選択されるコーティング層と
を備え、
前記コーティング層に適用された金属(M)は、クロム(Cr)であることを特徴とする燃料電池用ステンレス分離板。
(前記xは、0.5≦x≦1、yは、0.42≦y≦1、zは、0.5≦z≦2の値である。) - 前記コーティング層は、前記不動態被膜上に連続的(continuous)膜(film)の形態に形成されている、ことを特徴とする請求項8に記載の燃料電池用ステンレス分離板。
- 前記不動態被膜は、原子量の比率で(Cr+Ni)/Feの比率が1以上である、ことを特徴とする請求項8に記載の燃料電池用ステンレス分離板。
- 前記ステンレス鋼板母材は、0.08wt%以下の炭素(C)、16〜28 wt%のクロム(Cr)、0.1〜20wt%のニッケル(Ni)、0.1〜6wt%のモリブデン(Mo)、0.1〜5wt%のタングステン(W)、0.1〜2wt%の錫(Sn)、0.1〜2wt%の銅、及びその他の残量に鉄(Fe)を含むステンレス鋼板である、ことを特徴とする請求項8に記載の燃料電池用ステンレス分離板。
- 前記燃料電池用ステンレス分離板の腐蝕電流は、1μA/cm2未満、接触抵抗は、両面基準20mΩ cm2未満の値を有する、ことを特徴とする請求項8に記載の燃料電池用ステンレス分離板。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012182142A (ja) * | 2008-04-23 | 2012-09-20 | Hyundai Hysco | 燃料電池用ステンレス分離板及びその製造方法 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100777123B1 (ko) * | 2007-04-18 | 2007-11-19 | 현대하이스코 주식회사 | 연료전지용 스테인리스강 분리판 및 그 제조방법 |
US8834734B2 (en) * | 2011-06-06 | 2014-09-16 | GM Global Technology Operations LLC | Surface alloying of stainless steel |
EP2823079B1 (en) | 2012-02-23 | 2023-02-22 | Treadstone Technologies, Inc. | Corrosion resistant and electrically conductive surface of metal |
FR3002368B1 (fr) | 2013-02-15 | 2015-03-06 | Commissariat Energie Atomique | Plaque bipolaire metallique pour pile a combustible a membrane echangeuse de protons |
JP5816314B2 (ja) * | 2013-03-29 | 2015-11-18 | 本田技研工業株式会社 | 燃料電池用セパレータ及びその製造方法 |
WO2016104983A1 (ko) * | 2014-12-26 | 2016-06-30 | 주식회사 포스코 | 고분자 연료전지 분리판용 스테인리스 박판 및 그 제조방법 |
US11380907B2 (en) * | 2017-02-09 | 2022-07-05 | Jfe Steel Corporation | Substrate stainless steel sheet for fuel cell separators and production method therefor |
US20190165383A1 (en) * | 2017-11-29 | 2019-05-30 | Flosfia Inc. | Layered structure, electronic device including layered structure, system including electronic device, and method of manufacturing layered structure |
WO2021125534A1 (ko) * | 2019-12-19 | 2021-06-24 | 주식회사 포스코 | 표면 전기전도성이 우수한 연료전지 분리판용 스테인리스강 및 그 제조방법 |
DE102020209055A1 (de) | 2020-07-20 | 2022-01-20 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Herstellen einer Polarplatte sowie metallische Polarplatte |
CN113097520B (zh) * | 2021-03-29 | 2022-11-01 | 深圳扑浪创新科技有限公司 | 一种不锈钢双极板及其制备方法 |
CN113174545B (zh) * | 2021-04-28 | 2022-12-09 | 上海交通大学 | 具有高温抗氧化的原位纳米颗粒增强FeCrB合金及其制备方法 |
CN113445014A (zh) * | 2021-07-02 | 2021-09-28 | 扬州市普锐泰新材料有限公司 | 氢燃料电池钛双极板表面功能涂层工艺 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2180977C2 (ru) | 1997-10-14 | 2002-03-27 | Ниссин Стил Ко., Лтд. | Сепаратор низкотемпературного топливного элемента (варианты) и способ его изготовления |
JPH11162478A (ja) | 1997-12-02 | 1999-06-18 | Aisin Seiki Co Ltd | 燃料電池用セパレータ |
CA2417753A1 (en) * | 2000-08-05 | 2002-02-14 | Ineos Chlor Limited | Stainless steel substrate treatment |
JP4920137B2 (ja) | 2001-03-07 | 2012-04-18 | パナソニック株式会社 | 高分子電解質型燃料電池の運転方法 |
JP3667679B2 (ja) | 2001-10-17 | 2005-07-06 | 日新製鋼株式会社 | 低温型燃料電池用ステンレス鋼製セパレータ |
JP3831269B2 (ja) | 2002-01-30 | 2006-10-11 | 本田技研工業株式会社 | 燃料電池用セパレータの製造方法及び同製造装置 |
DE10306649A1 (de) * | 2003-02-18 | 2004-09-02 | Forschungszentrum Jülich GmbH | Schutzschicht für hochtemperaturbelastete Substrate, sowie Verfahren zur Herstellung derselben |
SE528379C2 (sv) * | 2004-11-30 | 2006-10-31 | Sandvik Intellectual Property | Bränslecellskomponent med en komplex oxid bildande beläggning, anordningar innefattande komponenten och metod att framställa komponenten |
JP5014644B2 (ja) | 2006-02-27 | 2012-08-29 | 新日本製鐵株式会社 | 固体高分子型燃料電池用セパレータおよびその製造方法 |
JP2008078115A (ja) | 2006-08-24 | 2008-04-03 | Nissan Motor Co Ltd | 遷移金属窒化物、燃料電池用セパレータ、遷移金属窒化物の製造方法、燃料電池用セパレータの製造方法、燃料電池スタック、及び燃料電池車両 |
JP2008091225A (ja) | 2006-10-03 | 2008-04-17 | Nisshin Steel Co Ltd | 固体高分子型燃料電池用セパレータ及びその製造方法 |
KR100777123B1 (ko) * | 2007-04-18 | 2007-11-19 | 현대하이스코 주식회사 | 연료전지용 스테인리스강 분리판 및 그 제조방법 |
KR100791274B1 (ko) * | 2007-06-20 | 2008-01-04 | 현대하이스코 주식회사 | 금속층/금속질화물층과 금속산질화물층을 포함하는 연료전지용 스테인리스 |
EP2112250B1 (en) | 2008-04-23 | 2017-12-06 | Hyundai Steel Company | Stainless separator for fuel cell and method of manufacturing the same |
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US9070907B2 (en) | 2008-04-23 | 2015-06-30 | Hyundai Hysco | Stainless separator for fuel cell and method of manufacturing the same |
US9331343B2 (en) | 2008-04-23 | 2016-05-03 | Hyundai Steel Company | Stainless separator for fuel cell and method of manufacturing the same |
US9337495B2 (en) | 2008-04-23 | 2016-05-10 | Hyundai Steel Company | Stainless separator for fuel cell and method of manufacturing the same |
US9337496B2 (en) | 2008-04-23 | 2016-05-10 | Hyundai Steel Company | Stainless separator for fuel cell and method of manufacturing the same |
US9425450B2 (en) | 2008-04-23 | 2016-08-23 | Hyundai Steel Company | Stainless separator for fuel cell and method of manufacturing the same |
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