JP2016518005A - 高分子電解質膜、高分子電解質膜を含む膜電極接合体および膜電極接合体を含む燃料電池 - Google Patents
高分子電解質膜、高分子電解質膜を含む膜電極接合体および膜電極接合体を含む燃料電池 Download PDFInfo
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Abstract
Description
イオン伝導性物質としてスルホン化ポリエーテル−エーテルケトン系高分子を7wt%の濃度でDMSO(Dimethyl Sulfoxide)に溶かして含浸溶液を作り、10cm×10cmのフレームに固定された気孔度約70%、厚さ約15μmの支持体を前記含浸溶液に含浸させた。以後、80℃のオーブンで24時間乾燥して、高分子電解質膜を製造した。製造された膜は、80℃、10%硫酸で24時間酸処理後、蒸留水で4回以上洗浄した後、乾燥して使用した。前記実施例1によって製造された高分子電解質膜の最終厚さは11μm〜12μmであり、混合層の厚さは7μm〜8μmであり、混合層の上部に備えられた純粋層の厚さは0.7μm〜1.2μmであり、混合層の下部に備えられた純粋層の厚さは2μm〜3μmであった。
前記実施例1で使用された含浸溶液のみを用いて、400μmの厚さでガラス板上にキャスティングし、以後、80℃のオーブンで24時間乾燥して、高分子電解質膜を製造した。製造された高分子電解質膜は、実施例1と同様の方法で処理して使用した。前記比較例1によって製造された高分子電解質膜は、純粋層のみからなっており、厚さは20μmであった。
イオン伝導性物質としてスルホン化ポリエーテル−エーテルケトン系高分子を7wt%の濃度でDMSOに溶かして含浸溶液を作った後、10cm×10cmのフレームに固定された気孔度約65%、厚さ約20μmの支持体を前記含浸溶液に含浸させた。以後、含浸された支持体の一方の面に約5mlの含浸溶液を追加的に塗布した後、80℃のオーブンで24時間乾燥して、高分子電解質膜を製造した。製造された膜は、80℃、10%硫酸で24時間酸処理後、蒸留水で4回以上洗浄した後、乾燥して使用した。前記比較例1によって製造された高分子電解質膜の総厚さは約56μm〜62μmであり、混合層の厚さは13μm〜14μmであり、含浸溶液を追加的に塗布した面の純粋層の厚さは30μm〜33μmであり、これと反対面の純粋層の厚さは13μm〜15μmであった。
イオン伝導性物質としてスルホン化ポリエーテル−エーテルケトン系高分子を7wt%の濃度でDMSOに溶かして含浸溶液を作った後、10cm×10cmのフレームに固定された気孔度約70%、厚さ約3μmの支持体を前記含浸溶液に含浸させた。以後、80℃のオーブンで24時間乾燥して、高分子電解質膜を製造した。製造された膜は、80℃、10%硫酸で24時間酸処理後、蒸留水で4回以上洗浄した後、乾燥して使用した。前記比較例1によって製造された高分子電解質膜の総厚さは約6.3μm〜6.6μmであり、混合層の厚さは1.6μm〜1.8μmであり、混合層の上部に備えられた純粋層の厚さは2.3μm〜2.5μmであり、混合層の下部に備えられた純粋層の厚さは2.1μm〜2.3μmであった。
Claims (26)
- 高分子電解質膜であって、
イオン移動領域および3次元網状構造の支持体を含む混合層を含み、
前記イオン移動領域はイオン伝導性物質を含む2以上のセルが3次元的に接する構造を有し、
前記高分子電解質膜の全体厚さに対する前記混合層の厚さの比は30%以上100%以下である高分子電解質膜。 - 前記混合層の厚さは1μm以上30μm以下である、請求項1に記載の高分子電解質膜。
- 前記高分子電解質膜は、混合層の上面、または下面、または上面および下面に備えられた前記イオン伝導性物質のみを含む純粋層をさらに含む、請求項1に記載の高分子電解質膜。
- 前記混合層のいずれか一面に備えられた前記純粋層の厚さはそれぞれ独立して0μm超過6μm以下である、請求項3に記載の高分子電解質膜。
- 前記混合層の上面および下面にそれぞれ備えられた前記純粋層の間の厚さの差は前記混合層の厚さの50%以下である、請求項3に記載の高分子電解質膜。
- 前記混合層と前記全体純粋層との厚さの比率は1:0〜1:4である、請求項3に記載の高分子電解質膜。
- 前記混合層のいずれか一面に備えられた前記純粋層はそれぞれ独立して2層以上積層され、各層は互いに異なるイオン伝導性物質を含む、請求項3に記載の高分子電解質膜。
- 前記高分子電解質膜の全体厚さは3μm以上36μm以下である、請求項1に記載の高分子電解質膜。
- 前記イオン伝導性物質は炭化水素系物質を含む、請求項1に記載の高分子電解質膜。
- 前記炭化水素系物質は側鎖に1以上の陽イオン交換基を有する高分子であり、
前記高分子に含まれている炭素原子数とフッ素原子数との比は1:0以上1:1未満であり、
前記陽イオン交換基はスルホン酸基、カルボン酸基、リン酸基、ホスホン酸基、およびこれらの誘導体からなる群より選択される1種以上を含む、請求項9に記載の高分子電解質膜。 - 前記高分子電解質膜は、RHサイクルの限界値が少なくとも20,000回である、請求項1に記載の高分子電解質膜。
- 前記イオン伝導性物質はスルホン化ベンズイミダゾール系高分子、スルホン化ポリイミド系高分子、スルホン化ポリエーテルイミド系高分子、スルホン化ポリフェニレンスルフィド系高分子、スルホン化ポリスルホン系高分子、スルホン化ポリエーテルスルホン系高分子、スルホン化ポリエーテルケトン系高分子、スルホン化ポリエーテル−エーテルケトン系高分子、スルホン化ポリフェニルキノキサリン系高分子、およびスルホン化部分フッ素系の導入された高分子からなる群より選択される1種または2種以上を含む、請求項1に記載の高分子電解質膜。
- 前記支持体は炭化水素系物質を含む、請求項1に記載の高分子電解質膜。
- 前記支持体は半結晶質ポリマーを含む、請求項1に記載の高分子電解質膜。
- 前記支持体はポリオレフィン、ポリアミド、ポリエステル、ポリアセタール(またはポリオキシメチレン)、ポリスルフィド、ポリビニルアルコール、これらのコポリマー、およびこれらの組み合わせを含む、請求項1に記載の高分子電解質膜。
- 前記混合層の全体体積に対して、前記イオン移動領域は40体積%以上85体積%以下である、請求項1に記載の高分子電解質膜。
- 前記イオン移動領域は前記イオン伝導性物質を60体積%以上100体積%以下で含む、請求項1に記載の高分子電解質膜。
- 前記セルの最大直径の平均は0.25μm以上0.4μm以下であり、前記セルの最大直径の標準偏差は0.05μm以上0.2μm以下である、請求項1に記載の高分子電解質膜。
- 前記高分子電解質膜の上面と水平な任意の面において、前記セルは、いずれか一方向(x軸方向)およびこれに垂直な方向(y軸方向)と高分子電解質膜の厚さ方向(z軸方向)に2層以上積層された、請求項1に記載の高分子電解質膜。
- 前記支持体は2以上の前記セルが分布するスポンジ構造である、請求項1に記載の高分子電解質膜。
- 前記高分子電解質膜の垂直断面および水平断面ともに2以上の前記セルの断面を含む、請求項1に記載の高分子電解質膜。
- 前記支持体は2以上のノード(node)からなり、それぞれのノードは3以上の分枝を含む、請求項1に記載の高分子電解質膜。
- 前記混合層は任意の1μm3領域に10以上400以下のセルを含む、請求項1に記載の高分子電解質膜。
- 前記高分子電解質膜の空気透過度は1hour/100ml以上である、請求項1に記載の高分子電解質膜。
- 請求項1〜24のいずれか1項に記載の高分子電解質膜を含む膜電極接合体。
- 請求項25に記載の膜電極接合体を含む燃料電池。
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KR20130047773 | 2013-04-29 | ||
KR10-2013-0047773 | 2013-04-29 | ||
KR20130049424 | 2013-05-02 | ||
KR10-2013-0049424 | 2013-05-02 | ||
KR20130132160 | 2013-11-01 | ||
KR10-2013-0132160 | 2013-11-01 | ||
KR10-2013-0144440 | 2013-11-26 | ||
KR20130144440 | 2013-11-26 | ||
PCT/KR2014/003805 WO2014178621A1 (ko) | 2013-04-29 | 2014-04-29 | 고분자 전해질막, 고분자 전해질막을 포함하는 막전극 접합체 및 막 전극 접합체를 포함하는 연료전지 |
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JP2016538698A (ja) * | 2013-11-26 | 2016-12-08 | エルジー・ケム・リミテッド | 高分子電解質膜、高分子電解質膜を含む膜電極接合体および膜電極接合体を含む燃料電池 |
JP2019220463A (ja) * | 2018-06-15 | 2019-12-26 | 日本碍子株式会社 | 電気化学セル用電解質及び電気化学セル |
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CN105762392B (zh) * | 2016-04-20 | 2018-12-28 | 深圳大学 | 一种复合型质子交换膜及其制备方法 |
KR102140121B1 (ko) | 2016-07-01 | 2020-07-31 | 주식회사 엘지화학 | 다공성 기재를 포함하는 강화-복합 전해질막 및 이의 제조방법 |
CN106356546B (zh) * | 2016-11-28 | 2019-01-08 | 东北大学 | 一种磷酸掺杂层层自组装聚合物复合膜的制备方法 |
JP6839418B2 (ja) * | 2017-06-02 | 2021-03-10 | 株式会社デンソー | 燃料電池用電解質の製造方法 |
JP6721762B2 (ja) * | 2018-06-15 | 2020-07-15 | 日本碍子株式会社 | 電気化学セル |
CN114730901A (zh) * | 2019-12-26 | 2022-07-08 | 可隆工业株式会社 | 聚合物电解质膜、包括其的膜-电极组件和测量其耐久性的方法 |
CN111864244B (zh) * | 2020-07-29 | 2021-08-03 | 江苏大学 | 一种带微织构的燃料电池质子交换膜及其加工方法 |
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EP2960976B1 (en) | 2018-04-25 |
CN105144454B (zh) | 2017-08-11 |
EP2960974A4 (en) | 2016-11-02 |
JP2016519397A (ja) | 2016-06-30 |
KR20140128894A (ko) | 2014-11-06 |
KR101579001B1 (ko) | 2015-12-18 |
US20160064764A1 (en) | 2016-03-03 |
JP6395272B2 (ja) | 2018-09-26 |
CN105144454A (zh) | 2015-12-09 |
KR20140128895A (ko) | 2014-11-06 |
EP2960976A1 (en) | 2015-12-30 |
EP2960975A1 (en) | 2015-12-30 |
CN105283993A (zh) | 2016-01-27 |
CN105283993B (zh) | 2018-06-15 |
EP2960974B1 (en) | 2018-02-21 |
EP2960975B1 (en) | 2018-05-30 |
WO2014178620A1 (ko) | 2014-11-06 |
KR20140128893A (ko) | 2014-11-06 |
US20160056488A1 (en) | 2016-02-25 |
US20160072144A1 (en) | 2016-03-10 |
US9991539B2 (en) | 2018-06-05 |
KR20160150081A (ko) | 2016-12-28 |
EP2960976A4 (en) | 2016-08-24 |
JP2016519398A (ja) | 2016-06-30 |
WO2014178621A1 (ko) | 2014-11-06 |
WO2014178619A1 (ko) | 2014-11-06 |
EP2960975A4 (en) | 2016-08-17 |
EP2960974A1 (en) | 2015-12-30 |
CN105164842A (zh) | 2015-12-16 |
US10050294B2 (en) | 2018-08-14 |
CN105164842B (zh) | 2019-04-19 |
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