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Hyosung developed a dual-cell structured PEMFC stack with enlarged active area and cost innovation without compromising electrochemical performance.

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What they did

System
MFC

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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.

Key findings

  • Insertion of insulation part within bipolar plate and divided membrane electrode assemblies enabled two individual cells in single layer.
  • Cost reduction achieved through decrease in number of layers.
  • Stack of 24 layers with 48 cells, 48 V at OCV, and 0.75 V per cell at 250 mA/cm² achieved.

Keywords

Stack (abstract data type)Proton exchange membrane fuel cellElectrolyteMembraneElectrodeOpen-circuit voltage

Identifiers

DOI
10.1115/1.4024568
Journal
Journal of Fuel Cell Science and Technology
Year
2013