Abstract
In this study, Hyosung demonstrates how a dual-cell structured polymer electrolyte membrane fuel cells (PEMFC) can guarantee the development of a stack with enlarged active area and cost innovation without a change in electrochemical performance and operation conditions. The insertion of insulation part within the bipolar plate and divided membrane electrode assemblies allowed the two individual cells in single layer. This enables the development of highly cost effective stack for PEMFC of a 1 kW class for residential power generators. The decrease in the number of layers can be represented as a cost reduction. We developed a stack of 24 layers with 48 cells, 48 V at open circuit voltage (OCV) and achieved a performance rating of 0.75 V per cell at 250 mA/cm2.
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