Solid polymer electrolyte membrane fuel cell electrode catalyst layer
AssigneeHonda Motor Co., Ltd.
InventorsTakashi Komura, Yoichi Asano, Masahiro Ise, Ryoichiro Takahashi, Hiromichi Yoshida
Life of this patent
Estimating the term…
Abstract
A solid polymer electrolyte membrane fuel cell electrode catalyst layer comprises Pt particles carried on a carbon carrier and a solid polymer electrolyte, wherein a center-to-center distance dimension (Lpt−pt) between the Pt particles carried on the carbon carrier is made to substantially coincide with the sum of a double of a total dimension resulting by adding the length (Lpes) of a side chain having an ion-exchange group to the diameter (Dpem) of a main chain of the solid polymer electrolyte and the diameter (Dpt) of the Pt particle.
Claims10
A solid polymer electrolyte membrane fuel cell electrode catalyst layer comprising:
- catalyst particles carried on a catalyst carrier;
- and
- a solid polymer electrolyte,
- wherein a center-to-center distance dimension (Lpt−pt) between the catalyst particles carried on the catalyst carrier is made to substantially coincide with the sum of a double of a total dimension resulting by adding the length (Lpes) of a side chain having an ion-exchange group to the radius (Dpem/2) of a main chain of the solid polymer electrolyte and the diameter (Dpt) of the catalyst particle.
Dependencies are inferred from the claim text.