A Decade of Improvements for Solid Oxide Electrolysis Cells. Long-Term Degradation Rate from 40%/Kh to 0.4 % Kh

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Abstract

Solid oxide electrolysis cells (SOEC) have the potential for efficient large-scale conversion from electrical energy to chemical energy stored in fuels, such as hydrogen or synthetic hydrocarbon fuels by use of well-known catalysis processes. Key issues for the break-through of this technology are to provide inexpensive, reliable, high performing and long-term stable SOEC for stack and system applications. At DTU Energy (formerly Department of Fuel Cells and Solid State Chemistry, Risø National Laboratory), research within SOEC for more than a decade has led to long-term degradation rates on cell level being improved from 40 %/kh to 0.4 %/kh for tests at -1 A/cm2 (figure 1). In this paper, we review the key findings and highlight different performance and durability limiting factors that have been discovered, analyzed and addressed over the years to reach the tremendous increase in long-term stability for SOEC as illustrated by the cell tests in figure 1.
Original languageEnglish
Article number2861
JournalElectrochemical Society. Meeting Abstracts (Online)
VolumeMA2016-02
ISSN2151-2043
Publication statusPublished - 2016
EventPRiME 2016/230th ECS Meeting - Honolulu, United States
Duration: 2 Oct 20167 Oct 2016
http://prime-intl.org/

Conference

ConferencePRiME 2016/230th ECS Meeting
CountryUnited States
CityHonolulu
Period02/10/201607/10/2016
Internet address

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