JP3843095B2 - 燃料電池および電極基体 - Google Patents
燃料電池および電極基体 Download PDFInfo
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- JP3843095B2 JP3843095B2 JP2003358760A JP2003358760A JP3843095B2 JP 3843095 B2 JP3843095 B2 JP 3843095B2 JP 2003358760 A JP2003358760 A JP 2003358760A JP 2003358760 A JP2003358760 A JP 2003358760A JP 3843095 B2 JP3843095 B2 JP 3843095B2
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- JP
- Japan
- Prior art keywords
- electrode
- fuel cell
- electrode substrate
- hollow
- water
- 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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- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Fuel Cell (AREA)
- Inert Electrodes (AREA)
Description
内径が約200μm、外径が約300μmのポリアクリルニトリル系中空繊維をクロス状に織りこみ、電極基体シートを作製した。そして、この電極基体シートに導電性を付与するため、バインダーとなるフェノール樹脂と炭素粉末とをエタノールで混合してなるスラリーを電極基体シート表面に塗布し、予備乾燥を行った後に200℃の温度で熱処理を施し、導電性を有する中空繊維からなる本発明の電極基体を作製した。
電極基体に撥水性を付与する工程において、ポリテトラフルオロエチレン分散溶液に漬浸する代わりに該分散溶液を電極基体にスプレーし、熱処理を行うことにより撥水性を付与した。参考例の工程によれば中空繊維の中空部内壁まで撥水性が付与されるのに対し、本実施例では中空繊維の外表面にのみ撥水性が付与される。従って、本実施例によれば、中空繊維における外表面の撥水性を中空部内壁よりも大きくすることができる。そして、この電極基体を用いて参考例と同一の方法で実施例の燃料電池を作製した。
電極基体として従来のカーボンペーパーを用いた以外は、参考例と同一の工程で比較例の燃料電池を作製した。
2…電極触媒層
3…電解質膜
4…中空繊維
5…空隙
41…外筒部
42…中空部
Claims (4)
- 第1の電極基体と第1の電極触媒層とを備える第1の電極と、第2の電極基体と第2の電極触媒層とを備える第2の電極と、前記第1の電極と前記第2の電極とに挟持された電解質膜と、を備え、前記第1の電極および前記第2の電極にそれぞれ燃料および酸化剤が供給されることにより発電する燃料電池において、
前記第1の電極基体および前記第2の電極基体のうち少なくともいずれか一方は、
外表面が中空部内壁よりも高い撥水性を有する中空繊維を備え、
前記中空繊維の中空部から構成され、液体が移動する第1の経路と、
前記中空繊維どうしの空隙から構成され、少なくとも気体が通過する第2の経路と、を有することを特徴とする燃料電池。 - 前記中空繊維が、導電性を有することを特徴とする請求項1記載の燃料電池。
- 前記中空繊維は、表面に導電性物質が付着された高分子繊維からなることを特徴とする請求項2記載の燃料電池。
- 前記中空繊維が、カーボンからなることを特徴とする請求項2記載の燃料電池。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003358760A JP3843095B2 (ja) | 2003-10-20 | 2003-10-20 | 燃料電池および電極基体 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003358760A JP3843095B2 (ja) | 2003-10-20 | 2003-10-20 | 燃料電池および電極基体 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11186030A Division JP2001015123A (ja) | 1999-06-30 | 1999-06-30 | 燃料電池用電極基体、燃料電池用電極及びこれを用いた燃料電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004103592A JP2004103592A (ja) | 2004-04-02 |
JP3843095B2 true JP3843095B2 (ja) | 2006-11-08 |
Family
ID=32290882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003358760A Expired - Fee Related JP3843095B2 (ja) | 2003-10-20 | 2003-10-20 | 燃料電池および電極基体 |
Country Status (1)
Country | Link |
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JP (1) | JP3843095B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9346673B2 (en) | 2004-06-23 | 2016-05-24 | Samsung Sdi Co., Ltd. | Electrode for fuel cell, membrane-electrode assembly for fuel cell comprising the same, fuel cell system comprising the same, and method for preparing the electrode |
KR100578981B1 (ko) | 2004-09-08 | 2006-05-12 | 삼성에스디아이 주식회사 | 연료전지용 전극, 이를 포함하는 연료전지 시스템 |
KR100658675B1 (ko) | 2004-11-26 | 2006-12-15 | 삼성에스디아이 주식회사 | 연료전지용 전극, 이를 포함하는 연료전지 및 연료전지용전극의 제조방법 |
KR100684797B1 (ko) | 2005-07-29 | 2007-02-20 | 삼성에스디아이 주식회사 | 연료 전지용 전극, 이를 포함하는 막-전극 어셈블리 및이를 포함하는 연료 전지 시스템 |
JP6131696B2 (ja) * | 2013-04-26 | 2017-05-24 | 日産自動車株式会社 | ガス拡散層、その製造方法ならびにこれを用いる燃料電池用膜電極接合体および燃料電池 |
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2003
- 2003-10-20 JP JP2003358760A patent/JP3843095B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2004103592A (ja) | 2004-04-02 |
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