Durability and stability test of proton exchange membrane fuel cells prepared from polybenzimidazole/poly(tetrafluoro ethylene) composite membrane

Lin, Hsiu-Li; Hsieh, Yun‐Hao; Chiu, Chao-Yuan; Yu, T. Leon; Chen, L.C.

doi:10.1016/j.jpowsour.2009.01.062

Cited by 49 publications

(24 citation statements)

References 18 publications

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“…An increase in the cell resistance due to loss of membrane conductivity was observed in the fuel cell due to the loss of H 3 PO 4 [97,119]. Also, delamination of MEA components occurs due to the hydrate expansion difference which is reported in [97,124], however, the gap was filled with H 3 PO 4 that acted as an electrolyte and prevented any change in the cells performance [97].…”

Section: Degradationmentioning

confidence: 99%

High temperature (HT) polymer electrolyte membrane fuel cells (PEMFC) – A review

Chandan

Hattenberger

El-Kharouf

et al. 2013

Journal of Power Sources

824

444

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One possible solution of combating issues posed by climate change is the use of the High Temperature (HT) Polymer Electrolyte Membrane (PEM) Fuel Cell (FC) in some applications. The typical HT-PEMFC operating temperatures are in the range of 100e200 o C which allows for co-generation of heat and power, high tolerance to fuel impurities and simpler system design. This paper reviews the current literature concerning the HT-PEMFC, ranging from cell materials to stack and stack testing. Only acid doped PBI membranes meet the US DOE (Department of Energy) targets for high temperature membranes operating under no humidification on both anode and cathode sides (barring the durability). This eliminates the stringent requirement for humidity however, they have many potential drawbacks including increased degradation, leaching of acid and incompatibility with current state-of-the-art fuel cell materials. In this type of fuel cell, the choice of membrane material determines the other fuel cell component material composition, for example when using an acid doped system, the flow field plate material must be carefully selected to take into account the advanced degradation. Novel research is required in all aspects of the fuel cell components in order to ensure that they meet stringent durability requirements for mobile applications.

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Section: Degradationmentioning

confidence: 99%

High temperature (HT) polymer electrolyte membrane fuel cells (PEMFC) – A review

Chandan

Hattenberger

El-Kharouf

et al. 2013

Journal of Power Sources

824

444

View full text Add to dashboard Cite

show abstract

“…Thus the MEA prepared from the PBI/PTFE membrane has a better fuel cell performance than that prepared from the neat PBI membrane. In our previous work, the PBI/PTFE composite membrane prepared by impregnating the porous PTFE thin film with a PBI/DMAc solution had a thickness of~30± 2 μm [20]. The conductivity measurement showed an L/σ0 0.20 cm 2 S −1 , and the i-V measurement showed an OCV of 0.78 V and a voltage of~0.52 V at the current density i0 400 mA cm −2 for this previous prepared membrane [20].…”

Section: Unit Cell Tests Of Pbi and Pbi/ptfe Measmentioning

confidence: 67%

“…Thus, it is hard to obtain a greater thickness composite membrane using the impregnation method. The thickness of our previous composite membrane was less than 30 μm [19,20], and the fuel cell test showed a low open circuit voltage (OCV) of the membrane electrode assembly (MEA) prepared from the PBI/PTFE composite membrane due to low thickness.…”

Section: Introductionmentioning

confidence: 91%

“…Using porous PTFE as supporting films for PBI [19,20] and quaternized polysulfone (QNPSU) [21,22] compsite PEMs for high temperature PEMFCs had also been reported. Because of poor compatibility of PTFE with PBI, in our previous work [19,20], we prepared PBI/PTFE composite membranes using Nafion as a coupling agent and carried out PEMFC unit cell test at 160°C with unhumidified H 2 /O 2 gases.…”

Section: Introductionmentioning

confidence: 99%

“…Because of poor compatibility of PTFE with PBI, in our previous work [19,20], we prepared PBI/PTFE composite membranes using Nafion as a coupling agent and carried out PEMFC unit cell test at 160°C with unhumidified H 2 /O 2 gases. The chemical structure of Nafion consists of a perfluorocarbon main chain, which is compatible with the PTFE supporting thin film, and the ethersulfonic acid side chains, which have -SO 3 H groups for interacting with the imidazole groups of PBI via Lewis acid-base interaction.…”

Section: Introductionmentioning

confidence: 99%

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Polybenzimidazole/poly(tetrafluoro ethylene) composite membranes for high temperature proton exchange membrane fuel cells

et al. 2012

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A porous poly(tetrafluoro ethylene) (PTFE) thin film (thickness 16±2 μm) is used as a supporting material for polybenzimidazole (PBI) to prepare the PBI/PTFE composite membrane (thickness 38±2 μm). The perfluorosulfonic acid resin (Nafion) is used as a coupling agent at the interface between PTFE and PBI to improve the bonding between PBI and PTFE. The composite membrane, after doping with phosphoric acid, is used to prepare membrane electrode assemblies (MEAs). A 450 h continuous fuel cell life test at 160°C with a fixed current density i 0 200 mA cm −2 and a 20 cycles cell on/off test, in which the fuel cell is operated at 160°C with i0200 mA cm −2 for 12 h and then switched off at room temperature in an ambient environment for 12 h per cycle, are performed. Both tests show good fuel cell performances.

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Promising TiOSO₄ Composite Polybenzimidazole‐Based Membranes for High Temperature PEMFCs

et al. 2011

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Composite membranes were prepared from poly[2,2'-(m-phenylene)-5,5'-bibenzimidazole] (polybenzimidazole: PBI), and titanium oxysulfate (TiOSO₄) with the aim of using these systems as electrolytes in high temperature proton exchange membrane fuel cells (PEMFCs). The presence of TiOSO₄ was confirmed by using Fourier-transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) analyses. Energy-dispersive X-ray spectroscopy (EDS) mapping of titanium and sulphur revealed that the titanium salt was homogenously distributed on the surface of the membrane. The presence of the titanium salt did not change the thermal behaviour of the doped membranes. The composite membrane was used as an electrolyte in an actual fuel cell operating at 150 °C. The cell showed a lower performance than a cell operated with the standard PBI membrane, but this was attributable to the electrodes rather than the membrane. The most remarkable result was that the fuel cell operating with the composite membrane showed the best stability during the preliminary long-term test because of the better acid retention capability of these titanium-based materials.

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Durability and stability test of proton exchange membrane fuel cells prepared from polybenzimidazole/poly(tetrafluoro ethylene) composite membrane

Cited by 49 publications

References 18 publications

High temperature (HT) polymer electrolyte membrane fuel cells (PEMFC) – A review

High temperature (HT) polymer electrolyte membrane fuel cells (PEMFC) – A review

Polybenzimidazole/poly(tetrafluoro ethylene) composite membranes for high temperature proton exchange membrane fuel cells

Promising TiOSO₄ Composite Polybenzimidazole‐Based Membranes for High Temperature PEMFCs

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Durability and stability test of proton exchange membrane fuel cells prepared from polybenzimidazole/poly(tetrafluoro ethylene) composite membrane

Cited by 49 publications

References 18 publications

High temperature (HT) polymer electrolyte membrane fuel cells (PEMFC) – A review

High temperature (HT) polymer electrolyte membrane fuel cells (PEMFC) – A review

Polybenzimidazole/poly(tetrafluoro ethylene) composite membranes for high temperature proton exchange membrane fuel cells

Promising TiOSO4 Composite Polybenzimidazole‐Based Membranes for High Temperature PEMFCs

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Promising TiOSO₄ Composite Polybenzimidazole‐Based Membranes for High Temperature PEMFCs