METHOD OF MANUFACTURING POLYMER ELECTROLYTE MEMBRANE FUEL CELL

Abstract: a method of manufacturing a polymer electrolyte membrane fuel cell includes preparing an intermediate sheet comprising a fibrous carbon material, obtaining carbon sheets by performing at least one of heat treatment or acid treatment on the intermediate sheet, and manufacturing unit cells comprising an electrolyte membrane. electrodes are located on a first surface and a second surface of the electrolyte membrane, gas diffusion layers are located on the electrodes, and the carbon sheets are interposed between the electrodes and the gas diffusion layers. electrochemical performance of the polymer electrolyte membrane fuel cell is improved by removing impurities, such as fe particles and amorphous carbon, from carbon sheets through heat treatment or acid treatment.

Inventor(s): Seung Tak Noh, Seung Hun Kang, Tae Hyun Park, Young Jin Jeong, Gyo Sik Kim, O Been Kwon, Seok Hun Jeong, Jae Yeon Kim, Hong Nyoung Yoo

CPC Classification: H01M8/1004 (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY)

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