Fuel cell electrode with high gas permeability, method of manufacturing same, and membrane-electrode assembly including same
AssigneesHyundai Motor Company, Kia Corporation
InventorsSeong Jun Jo, II Seok Chae
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Abstract
Proposed is an electrode enabling a fuel cell with high performance due to superior gas permeability to Nafion, which is a conventionally available binder. The electrode can be manufactured at low costs by minimizing the usage of expensive platinum catalyst. In addition, a polymer with high gas permeability can be obtained in a high yield through click reaction-based modification. Furthermore, the electrode can be optimized and bonded to various electrolyte membranes due to various physical properties obtained by adjusting the molecular weight of additive materials.
Claims20
A fuel cell electrode comprising:
- a catalyst particle;
- and
- a binder in which the catalyst particle is dispersed,
- wherein the binder comprises a polymer of intrinsic microporosity (PIM) and at least one substituent comprising a sulfonic acid group (—SO3H).
A method of manufacturing a fuel cell electrode, the method comprising:
- preparing a polymer of intrinsic microporosity (PIM);
- preparing a binder by substituting a substituent comprising a sulfonic acid group in the polymer of intrinsic microporosity;
- preparing a slurry by adding a catalyst particle to the binder;
- and
- forming an electrode by applying the slurry on a substrate.
Dependencies are inferred from the claim text.