Polymer-bound antioxidants in grafted membranes for fuel cells

2014 ◽  
Vol 2 (16) ◽  
pp. 5870-5882 ◽  
Author(s):  
Yves Buchmüller ◽  
Alexander Wokaun ◽  
Lorenz Gubler
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Cell Membranes ◽  
Polymer Backbone ◽  
Fuel Cell Membranes

Antioxidants are covalently attached to the polymer backbone in radiation grafted fuel cell membranes. The obtained membranes displayed superior stability compared to non-stabilized membranes.

Robotic Material Handling of Flexible Fuel Cell Membranes

2005 ◽  
Author(s):  
Stephen J. Derby ◽  
John Lippiatt
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Fuel Cell ◽  
Material Handling ◽  
Cell Membranes ◽  
Fuel Cell Membranes ◽  
New Approaches ◽  
Free Mode ◽  
Fabric Handling ◽  
Very High

One of the biggest challenges in the manufacturing of high temperature fuel cells is the creation of the Membrane Exchange Assembly (MEA). This is the heart of the fuel cell, where the 4–5 components must be assembled with very high tolerances to perform successfully. One of the key components, the membrane, is similar to plastic food wrap. Handling plastic wrap alone in a wrinkle free mode, with precision cut edges is difficult enough. But it also must be saturated in acid, creating a very slippery product. And the membrane will grow or shrink in a matter of 5 minutes when exposed to moisture in the air. So this material handling effort is orders of magnitude more difficult than the established methods for “simple” items like paper. This paper will document the research conducted into the robotic material handling of the fuel cell membranes. It requires a mix of traditional robotic techniques, some techniques from the fabric handling arena, and some new approaches. The issues from lifting a wet film from a PET backer sheet consistently and the sensing requirements for accurate placement have made this a challenging effort.

Sulfonated aromatic polymers containing hexafluoroisopropylidene groups: a simple but effective structure for fuel cell membranes

2018 ◽  
Vol 6 (47) ◽  
pp. 24625-24632 ◽  
Author(s):  
Jinju Ahn ◽  
Ryo Shimizu ◽  
Kenji Miyatake
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
High Performance ◽  
Cell Membranes ◽  
Fuel Cell Membranes ◽  
Aromatic Polymer ◽  
Aromatic Polymers

Highly proton conductive and chemically stable sulfonated aromatic polymer (SBAF) membranes containing hexafluoroisopropylidene groups enabled high performance and durable fuel cells.

(Semi-)Interpenetrating polymer networks as fuel cell membranes

2011 ◽  
Vol 368 (1-2) ◽  
pp. 1-17 ◽  
Author(s):  
Linda Chikh ◽  
Virginie Delhorbe ◽  
Odile Fichet
Keyword(s):  
Fuel Cell ◽  
Cell Membranes ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Fuel Cell Membranes

scholarly journals Towards Extrusion of Ionomers to Process Fuel Cell Membranes

Polymers ◽  
2011 ◽  
Vol 3 (3) ◽  
pp. 1126-1150 ◽  
Author(s):  
Yannick Molmeret ◽  
France Chabert ◽  
Nadia El Kissi ◽  
Cristina Iojoiu ◽  
Regis Mercier ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Cell Membranes ◽  
Fuel Cell Membranes

Oxidative and Photochemical Stability of Ionomers for Fuel-Cell Membranes

2006 ◽  
Vol 89 (10) ◽  
pp. 2354-2370 ◽  
Author(s):  
Svetlin Mitov ◽  
Olga Delmer ◽  
Jochen Kerres ◽  
Emil Roduner
Keyword(s):  
Fuel Cell ◽  
Cell Membranes ◽  
Fuel Cell Membranes ◽  
Photochemical Stability

Stability of Perfluoro Bis(Sulfonyl)Imide-Based Ionomers in Fuel Cell Membranes and Electrodes

2018 ◽  
Vol 86 (13) ◽  
pp. 381-394 ◽  
Author(s):  
Michael Yandrasits ◽  
Matthew Lindell ◽  
Andrei Komlev ◽  
Eric Fort ◽  
Steven Hamrock ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Cell Membranes ◽  
Fuel Cell Membranes
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