Recovery of anode performance by reverse current treatment

D. Klotz; A. Leonide; E. Ivers-Tiffée

doi:10.1149/1.3205750

Recovery of anode performance by reverse current treatment

D. Klotz, A. Leonide, E. Ivers-Tiffée

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

Many research studies have been focusing on the long-term stability of Ni/8YSZ cermet anodes. In this contribution we present an effective method for the recovery of anode supported cells (ASC) after degradation. The application of a short-time reverse current ended up with a significant drop in the area specific resistance (ASR) of the ASC. The recovery of the ASC was attributed to an improvement of the electrochemical polarization loss in the anode functional layer (AFL), which was reduced by 40 %. This interpretation was obtained from EIS data by a combined deconvolution with the distribution of relaxation times (DRT) and Complex Nonlinear Least Squares (CNLS) fitting approach. Measurements over time proved a permanent recovery of anode performance by reverse current treatment.

Original language	English
Title of host publication	ECS Transactions - Solid Oxide Fuel Cells 11 (SOFC-XI)
Pages	2049-2056
Number of pages	8
Edition	2 PART 3
DOIs	https://doi.org/10.1149/1.3205750
Publication status	Published - 2009
Externally published	Yes
Event	11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI)- 216th ECS Meeting - Vienna, Austria Duration: Oct 4 2009 → Oct 9 2009

Publication series

Name	ECS Transactions
Number	2 PART 3
Volume	25
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Other

Other	11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI)- 216th ECS Meeting
Country/Territory	Austria
City	Vienna
Period	10/4/09 → 10/9/09

All Science Journal Classification (ASJC) codes

Engineering(all)

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10.1149/1.3205750

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Klotz, D, Leonide, A & Ivers-Tiffée, E 2009, Recovery of anode performance by reverse current treatment. in ECS Transactions - Solid Oxide Fuel Cells 11 (SOFC-XI). 2 PART 3 edn, ECS Transactions, no. 2 PART 3, vol. 25, pp. 2049-2056, 11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI)- 216th ECS Meeting, Vienna, Austria, 10/4/09. https://doi.org/10.1149/1.3205750

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abstract = "Many research studies have been focusing on the long-term stability of Ni/8YSZ cermet anodes. In this contribution we present an effective method for the recovery of anode supported cells (ASC) after degradation. The application of a short-time reverse current ended up with a significant drop in the area specific resistance (ASR) of the ASC. The recovery of the ASC was attributed to an improvement of the electrochemical polarization loss in the anode functional layer (AFL), which was reduced by 40 %. This interpretation was obtained from EIS data by a combined deconvolution with the distribution of relaxation times (DRT) and Complex Nonlinear Least Squares (CNLS) fitting approach. Measurements over time proved a permanent recovery of anode performance by reverse current treatment.",

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AU - Leonide, A.

AU - Ivers-Tiffée, E.

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AB - Many research studies have been focusing on the long-term stability of Ni/8YSZ cermet anodes. In this contribution we present an effective method for the recovery of anode supported cells (ASC) after degradation. The application of a short-time reverse current ended up with a significant drop in the area specific resistance (ASR) of the ASC. The recovery of the ASC was attributed to an improvement of the electrochemical polarization loss in the anode functional layer (AFL), which was reduced by 40 %. This interpretation was obtained from EIS data by a combined deconvolution with the distribution of relaxation times (DRT) and Complex Nonlinear Least Squares (CNLS) fitting approach. Measurements over time proved a permanent recovery of anode performance by reverse current treatment.

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Recovery of anode performance by reverse current treatment

Abstract

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