D09.06.07.abstract
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This document summarizes research on high temperature steam electrolysis (HTSE) for hydrogen production. It discusses the development of HTSE stack designs at CEA, including testing of multi-cell stacks at 800-825°C with pure water vapor. The stacks demonstrated performance and durability. In parallel, CEA is researching new materials like layered perovskites to increase cell and stack performance. Studies with ICMCB-CNRS found that electrolyte supported cells using nickelate Nd2NiO4+δ as the oxygen electrode showed three times higher performance at 800°C than cells using regular LSM.
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D09.06.05.presentationRelhy projectThe document summarizes research on high-temperature electrolysis (HTE) conducted at the Idaho National Laboratory (INL). It discusses INL's role in HTE research and development under the DOE initiative. Key areas covered include experimental work, modeling, demonstration projects, and a workshop on degradation mechanisms. Experimental results showed good initial performance but degradation over time. The workshop discussed various degradation mechanisms observed and potential mitigation strategies. INL's ongoing work focuses on developing improved cell compositions and demonstrating long-term stable performance.
D09.06.05.abstract
D09.06.05.abstractRelhy projectThe Idaho National Laboratory sponsored a workshop on solid-oxide electrolysis cell degradation issues. The workshop brought together participants from government, industry, and academia to discuss degradation in SOECs and SOFCs. The workshop concluded with a list of research priorities to address SOEC performance degradation over time. The paper summarizes the workshop recommendations and describes recent activities at INL to improve long-term SOEC cell performance, including electrolysis cell and stack testing at increasing scales along with materials development and computational modeling.
D09.06.06.presentation
D09.06.06.presentationRelhy projectThe document summarizes a workshop on limiting factors in high temperature electrolysis. It discusses environmental and resource concerns motivating hydrogen production from electrolysis. Renewable and nuclear energy could power electrolysis to produce hydrogen for storage or conversion to synthetic fuels. Key challenges include electrolyzer durability, thermodynamics, heat management, and costs. Large-scale electrolysis tests demonstrate feasibility but further advances are needed for commercialization.
L'appel de-nimesRelhy projectLa conférence internationale à Nîmes en 2015 a rassemblé divers acteurs pour discuter de la lutte contre la criminalité environnementale, soulignant son augmentation alarmante et ses liens avec d'autres formes de crime organisé. Un appel a été lancé pour que les décideurs agissent, en suivant cinq axes prioritaires tels que la prévention, la coordination internationale, et l'intensification des sanctions. Des mesures spécifiques ont été proposées pour améliorer la sensibilisation, la coopération et la réparation des préjudices causés par ces crimes.
Departementales 2015 maurepasRelhy project
L'appel de-nimesRelhy project
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D09.06.07.abstract
- 1. High temperature steam electrolysis for hydrogen production: from material development to durable stack operation J. Mougin1, G. Gousseau1, B. Morel1, F. Lefebvre-Joud1, F. Le Naour1, F. Chauveau2, J.C. Grenier2, J.M. Bassat2 1 LITEN, Hydrogen Technology Division, CEA Grenoble, 17 rue des Martyrs, F-38054 Grenoble Cedex 9, France 2 ICMCB-CNRS, Université de Bordeaux 1, 87 Av. Dr. Schweitzer, F-33608 Pessac Cedex, France Abstract: CEA is carrying out research in the field of High temperature steam electrolysis (HTSE), from materials, cells and components developments to stack design and including components and stack testing. One stack design among those developed at CEA, targeting high compactness, will be addressed. Several stacks made of three to five cells have been tested, cells being commercial 225 cm² electrolyte supported cells. Stacks have been operated in pure water vapor (no hydrogen introduced on the cathode side) at 800 to 825°C. Details about performance and durability will be presented. In parallel CEA is carrying out researches on new materials and cells, in order to increase the cell performances and the stack performances. For that purpose, alternative materials are studied, and among them layered perovskites used as oxygen electrode. This research, carried out jointly by ICMCB-CNRS and CEA highlighted the great potential of nickelates. It has been shown, on button cells at this stage, that electrolyte supported cells containing the nickelate formulated Nd2NiO4+δ (*) present three times higher performance at 800°C than cells with the regular LSM. (*) Patent CNRS - EDF (F) "Procédé et dispositif d’électrolyse de l’eau comprenant un matériau oxyde d’électrode particulier", P. Stevens, C. Lalanne, J.M. Bassat, F. Mauvy et J.C. Grenier. France patent : FR 2872174 2005-12-30