Global patent index - EP 1088361 A1

EP 1088361 A1 2001-04-04 - MEMBRANE-ELECTRODE UNIT FOR A FUEL CELL

Title (en)

MEMBRANE-ELECTRODE UNIT FOR A FUEL CELL

Title (de)

MEMBRAN-ELEKTRODEN-EINHEIT FÜR EINE BRENNSTOFFZELLE

Title (fr)

UNITE MEMBRANE-ELECTRODES POUR PILE A COMBUSTIBLE

Publication

EP 1088361 A1 (DE)

Application

EP 99919173 A

Priority

  • DE 19821978 A
  • EP 9902233 W

Abstract (en)

[origin: DE19821978A1] A fuel cell membrane/electrode unit has electrodes sandwiching a proton conductor comprising a temperature stable electrolyte-saturated non woven micro fiber material. A fuel cell membrane/electrode unit comprises a proton conductor arranged between optionally catalyst coated anode and cathode electrodes, the novelty being that the proton conductor is formed by an electrolyte-saturated non woven micro fiber material which is chemical inert with respect to the electrolyte at up to 200 deg C and under oxidizing and reducing conditions and which has a weight of 20-200 g/m<2>, a thickness of less than 1 mm and a pore volume of 65-92%. Preferred Features: The non woven micro fiber material may be filled with a per fluorinated ionomer, a 1-5 M aqueous sulfuric acid solution, concentrated phosphoric acid or hydrated zirconium phosphate or ammonium dihydrogen phosphate.

IPC 1-7 (main, further and additional classification)

H01M 8/10; H01M 8/02

IPC 8 full level (invention and additional information)

H01M 8/02 (2006.01); H01M 8/10 (2006.01)

CPC (invention and additional information)

H01M 8/1067 (2013.01); H01M 8/0289 (2013.01); H01M 8/1023 (2013.01); H01M 8/1039 (2013.01); H01M 8/1048 (2013.01); H01M 8/106 (2013.01); H01M 8/1062 (2013.01); H01M 2300/0082 (2013.01)

Designated contracting state (EPC)

AT DE FR GB IT SE

EPO simple patent family

DE 19821978 A1 19991125; DE 19821978 C2 20020606; AU 3704099 A 19991206; AU 738679 B2 20010927; BR 9910535 A 20010116; CA 2327520 A1 19991125; CN 1294762 A 20010509; EP 1088361 A1 20010404; JP 2002516472 A 20020604; KR 100392921 B1 20030728; WO 9960650 A1 19991125; ZA 200001232 B 20020513

INPADOC legal status

2004-06-23 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20031211

2002-01-23 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: CARL FREUDENBERG KG

- Ref Legal Event Code: RAP1

2001-06-13 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010430

2001-04-04 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000810

2001-04-04 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT DE FR GB IT SE