Method for manufacturing electrode for fuel cell

Details Method for manufacturing electrode for fuel cell Method for manufacturing electrode for fuel cell

1997-12-16

1999-08-10

Talbot, Brian K.

Coating processes

Electrical product produced

Fuel cell part

427365, 427600, 429 41, 429 43, 429 44, 296231, 502101, 502185, B05D 512

Patent

active

059356430

ABSTRACT:
There is disclosed a method for manufacturing an electrode for phosphate type fuel cells, utilizing a combination of a coating process and a rolling process. Carbon paper is waterproofed to give an electrode support. Separately, platinum-dispersed carbon powder (Pt/C) is added in a solvent and mechanically stirred to give a homogeneous mixture which is, then, added with a PTFE emulsion at an amount of about 40-55 wt % and stirred. Another stirring is executed in the presence of a bridge-builder and a peptization agent, to produce an electrocatalyst layer slurry. Using a coating apparatus, the electrocatalyst slurry is coated upon the electrode support in a uniform thickness. The resulting structure is dried for 30 min in an inert atmosphere of 225.degree. C. to completely remove the solvent from the catalyst layer, passed through a rolling apparatus and subjected to sintering for 30 min in an inert atmosphere of 350.degree. C., to produce the electrode. It exhibits the advantages of few cracks in the electrocatalyst layer and strong adhesiveness between the electrode support and the electrocatalyst layer.

REFERENCES:
patent: 4163811 (1979-08-01), Kohmayr et al.
patent: 4603060 (1986-07-01), Mitsuda et al.
patent: 4849253 (1989-07-01), Maricle et al.
patent: 4894355 (1990-01-01), Takeuchi et al.
patent: 5395705 (1995-03-01), Door et al.
patent: 5716437 (1998-02-01), Denton et al.

Affiliated with

Also associated with

Rating

Method for manufacturing electrode for 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 Method for manufacturing electrode for fuel cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing electrode for fuel cell will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1117961