Polymer electrolyte fuel cell

H - Electricity – 01 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01M 8/02 (2006.01) H01M 4/86 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2442686

A solid polymer type fuel cell which comprises: a pair of electrodes (2) and (3) having a catalyst layer (5) comprising catalyst particles which comprise a catalyst support and a catalyst deposited thereon and have been united with one another with an ion-conductive polymer binder; and a polymer electrolyte film (1) sandwiched between the electrodes (2) and (3) on their sides having the catalyst layer (5). The polymer electrolyte film (1) has a coefficient of dynamic viscoelasticity at 110~C of 1x109 to 1x1011 Pa, and the ion-conductive polymer binder used for forming the catalyst layer (5) has a lower coefficient of dynamic viscoelasticity at 110~C than the polymer electrolyte film (1). The fuel cell further has, interposed between the polymer electrolyte film (1) and the catalyst layer (5) of each of the electrodes (2) and (3), a cushioning layer (6) comprising an ion-conductive material having a coefficient of dynamic viscoelasticity at 110~C which is lower than that of the polymer electrolyte film (1) and higher than that of the ion-conductive polymer binder in the catalyst layer (5).

L'invention concerne une pile à combustible du type à polymère solide, qui comprend : deux électrodes (2, 3) présentant une couche (5) catalyseur qui contient des particules de catalyseur, lesquelles comprennent un support de catalyseur et un catalyseur déposé sur celui-ci, et sont liées entre elles à l'aide d'un liant polymère conducteur ionique ; et un film (1) d'électrolyte polymère en sandwich entre les électrodes (2, 3), côté couche (5) catalyseur de celles-ci. Le film (1) d'électrolyte polymère possède un coefficient de viscoélasticité dynamique à 110 ·C compris entre 1x10?9¿ et 1x10?11¿ Pa, et le liant polymère conducteur ionique servant à former la couche (5) catalyseur possède un coefficient de viscoélasticité dynamique à 110 ·C inférieur à celui du film (1). La pile à combustible comporte de plus une couche (6) tampon, entre le film (1) d'électrolyte polymère et la couche (5) catalyseur de chacune des électrodes (2, 3) ; cette couche tampon comprend un matériau conducteur ionique possédant un coefficient de viscoélasticité dynamique à 110 ·C inférieur à celui du film (1) et supérieur à celui du liant de la couche (5) catalyseur.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Polymer electrolyte fuel cell does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymer electrolyte fuel cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer electrolyte fuel cell will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2014156

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.