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3. Polyelectrolyte/fluorinated polymer interpenetrating polymer networks as fuel cell membrane

Author

Delhorbe, Virginie, primary, Reijerkerk, Sander R., additional, Cailleteau, Céline, additional, Bathfield, Maël, additional, Chikh, Linda, additional, Gouanve, Fabrice, additional, Ogier, Lionel, additional, Espuche, Eliane, additional, Ameduri, Bruno, additional, Vidal, Serge, additional, Gebel, Gérard, additional, Morin, Arnaud, additional, and Fichet, Odile, additional

Published
2013
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5. Fluorohexane network and sulfonated PEEK based semi-IPNs for fuel cell membranes

Author

Delhorbe, Virginie, primary, Thiry, Xavier, additional, Cailleteau, Céline, additional, Mourier, Elise, additional, Bathfield, Maël, additional, Chikh, Linda, additional, Fichet, Odile, additional, Ameduri, Bruno, additional, Mercier, Régis, additional, Vidal, Serge, additional, Augier, Lionel, additional, Espuche, Eliane, additional, Gouanvé, Fabrice, additional, Gebel, Gérard, additional, and Morin, Arnaud, additional

Published
2012
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8. Assemblies of protective anion exchange membrane on air electrode for its efficient operation in aqueous alkaline electrolyte.

Author

Bertolotti, Bruno, Chikh, Linda, Vancaeyzeele, Cédric, Alfonsi, Séverine, and Fichet, Odile

Subjects
*ION-permeable membranes, *ELECTRODES, *AQUEOUS electrolytes, *ALKALINE batteries, *ENERGY storage, *PRECIPITATION (Chemistry)
Abstract

Aqueous alkaline metal-air batteries represent promising energy storage devices when supplied with atmospheric air. However, under this condition, the air electrode shows a very short life time (i.e. 50 h of operation in 5 M LiOH at −10 mA cm −2 ), mainly due to the precipitation of carbonates inside the electrode porosity. The air electrode can then be protected by an anion exchange membrane on the electrolyte side. In this paper, we demonstrate that the efficiency of this protective membrane depends on the assembly method on the electrode. When a modified poly(epichlorohydrin) (PECH) network is synthesized directly on the electrode, the polymer seeps inside the electrode porosity, and a suitable interface inducing negligible additional polarization in comparison with classical pressure-assembled membranes is obtained. This protected electrode shows improved stability of up to 160 h of operation in 5 M LiOH. This performance is improved to 350 h by adjusting the conductivity and the ionic exchange capacity. Finally, the interest of interpenetrating polymer network (IPN) architecture compared to a single network is confirmed. Indeed, an electrode protected with a PECH/poly(2-hydroxyethyl methacrylate) (PHEMA) IPN is stable for 650 h in 5 M LiOH. In addition, degradation process becomes reversible since the assembly can be regenerated, which is not possible for the bare electrode. [ABSTRACT FROM AUTHOR]

Published
2015
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9. Nouveaux réseaux interpénétrés de polymères et leurs applications

Author

ICGM IAM ; ICGM, Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux (LITEN) ; CEA, Laboratoire matériaux organiques à propriétés spécifiques (LMOPS) ; CNRS - Université de Savoie, Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Polymères et des Biomatériaux (IMP-LMPB) ; Université Claude Bernard - Lyon I (UCBL) - Université Jean Monnet - Saint-Etienne - Institut National des Sciences Appliquées [INSA] - Lyon - CNRS, Laboratoire de Physico-chimie des Polymères et des Interfaces (LPPI) ; Université de Cergy Pontoise, Structures et propriétés d'architectures moléculaire (SPRAM - UMR 5819) ; CEA - Université Joseph Fourier - Grenoble I - CNRS, ANR AMEIRICC, Ameduri, Bruno, Morin, Arnaud, Mercier, Regis, Espuche, Eliane, Fichet, O., Chikh, Linda, Gebel, G., ICGM IAM ; ICGM, Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux (LITEN) ; CEA, Laboratoire matériaux organiques à propriétés spécifiques (LMOPS) ; CNRS - Université de Savoie, Ingénierie des Matériaux Polymères - Laboratoire des Matériaux Polymères et des Biomatériaux (IMP-LMPB) ; Université Claude Bernard - Lyon I (UCBL) - Université Jean Monnet - Saint-Etienne - Institut National des Sciences Appliquées [INSA] - Lyon - CNRS, Laboratoire de Physico-chimie des Polymères et des Interfaces (LPPI) ; Université de Cergy Pontoise, Structures et propriétés d'architectures moléculaire (SPRAM - UMR 5819) ; CEA - Université Joseph Fourier - Grenoble I - CNRS, ANR AMEIRICC, Ameduri, Bruno, Morin, Arnaud, Mercier, Regis, Espuche, Eliane, Fichet, O., Chikh, Linda, and Gebel, G.

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