Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Snu Rdb Foundation

Yoon Hwan Cho

Su Won Seol

Ji Hoon Yang

Dae Yong Son

Kook Il Han

Dong Hwan Yoon

Byeong Gab Ji

Jae Seung Lee

Yong Min Kim

Ju Young Lee

In Chul Hwang

Nak Hyun Kwon

Bum Wook Roh

Young Taek Kim

Jin Seong Choi

Ju Wan Lim

Yung Eun Sung

Yong Hun Cho

Nam Gee Jung

Hee Man Choe

Disclosed are an electrode including a porous substrate, a membrane-electrode assembly for a fuel cell including the same and a method of manufacturing the same. In the method of manufacturing the membrane-electrode assembly, the amount of a catalyst that is loaded depending on the position is applied in a gradational manner, thus efficiently using the catalyst, thereby reducing costs owing to the use of a decreased amount of the metal catalyst. Further, the membrane-electrode assembly includes the electrode including a porous substrate, thus making it easy to select hot-pressing conditions and increasing processing efficiency. The porous substrate is hydrophobic and the pore size in the electrode is not decreased compared to conventional electrodes, thus reducing flooding and generating various operation regions. The electrode including the porous substrate can minimize electrode loss, thus improving electrode durability.

Electrode for membrane-electrode assembly and method of manufacturing same

Disclosed is an electrode for a membrane-electrode assembly, in which a hydrophilic group and a hydrophobic portion of an ionomer are bonded to a catalyst so that the alignment of the hydrophilic group and the hydrophobic portion of the ionomer is controlled, and a method of manufacturing the same.

Electrode for a membrane-electrode assembly having improved water repellency and a method of manufacturing same

The present disclosure relates to a tube-shaped catalyst complex and a catalyst slurry including the same for a fuel cell. The catalyst complex for a fuel cell comprises a tubular inner layer including an ionomer and an outer layer provided on an outer surface of the inner layer and including a catalyst.

Tube-shaped catalyst complex and catalyst slurry including same for fuel cell

The present disclosure relates to a method of manufacturing catalyst slurry for fuel cells capable of greatly improving efficiency in use of catalyst metal and a method of manufacturing an electrode for fuel cells using the catalyst slurry manufactured using the method. Specifically, the method of manufacturing catalyst slurry for fuel cells includes preparing a catalyst including a porous carrier and catalyst metal, introducing the catalyst, a solvent, and an ionomer into a chamber, and infiltrating the ionomer into pores of the carrier.

Method of manufacturing catalyst slurry for fuel cells and method of manufacturing electrode for fuel cells using the same

Disclosed are an electrode for a membrane-electrode assembly, a method of manufacturing the same and a membrane-electrode assembly using the same. The electrode may include the pores and pore density around a catalyst contained in the electrode may be selectively increased using a thermally decomposable chemical blowing agent, thereby improving mass transfer through the catalyst.

Electrode for membrane-electrode assembly, method of manufacturing same and membrane-electrode assembly using same

Disclose is a method of manufacturing catalyst ink for a fuel cell, and particularly the method includes removing eluted transition metal from a noble-metal/transition-metal alloy catalyst.

Method of manufacturing catalyst ink free of eluted transition metal for fuel cell

Disclosed is a method of manufacturing a membrane-electrode assembly for fuel cells. The method includes (a) admixing a metal catalyst, an ionomer and a first dispersion solvent to prepare a first admixture, (b) heat treating the first admixture prepared in (a) to form an ionomer-fixed metal catalyst, and (c) immersing the ionomer-fixed metal catalyst formed in (b) in a solvent, wherein the solvent in (c) may include one or more selected from the group consisting of ethanol, propanol, and isopropyl alcohol. The membrane-electrode assembly for fuel cells manufactured by the method may have substantially improved durability.

Method of manufacturing membrane-electrode assembly for fuel cells

A method for manufacturing a fuel cell electrode includes forming a first mixture by mixing a first cation exchange resin, a metal catalyst, and a first solvent, powderizing the first mixture to produce a first catalyst powder comprising the metal catalyst coated with the first cation exchange resin, forming a second mixture by mixing the first catalyst powder, a second cation exchange resin, and a second solvent, powderizing the second mixture to produce a catalyst powder having a core and two or more layers of shells and being coated with the second cation exchange resin, mixing the catalyst powder having the core and two or more layers of shells with a third solvent to produce a catalyst slurry, and coating, using the catalyst slurry, to produce an electrode.

Methods for manufacturing fuel cell electrodes and electrodes formed using the same

The present invention provides an electrode for a polymer electrolyte membrane fuel cell. In one embodiment, a planar nanoporous or microporous metal foam or metal aerogel structure is provided, from which an electrode with a catalyst layer integrally formed by fixing a catalyst in the metal foam or metal aerogel is formed.

Growing community of inventors

Gyeonggi-do, South Korea

Yoon Hwan Cho