A New Design Using a Metal Wire Brush as the Current Collector of Micro-Tubular SOFCs

J. Shi, J. Fan, Y. Wang, Y. Shi, N. Cai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study, a novel current collecting method was designed and demonstrated by inserting a metal wire brush into the anode supported micro-tubular SOFC. The new design enables a tight and stable contact between the wire and the inner wall of the anode which leads to a fine performance of the SOFC. Different kinds of metal wires were applied, where the copper wire brush (CZWB) shows a better performance than the stainless steel wire brush (SSWB). At a temperature of 700 and a fuel feed of hydrogen, the SOFC using CZWB can achieve a maximum power density of 290 mW/cm2 and an ohmic resistance of 0.66 Ωcm2. And the brush size has been approved to have little effect on the ohmic resistance. A 108 h long-time discharge test was carried on, resulting with a degradation rate of 1.728‰/h and indicating a relative stability.

Original languageEnglish
Title of host publication17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
PublisherIOP Publishing Ltd.
Pages1867-1876
Number of pages10
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2021
Event17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 - Stockholm, Sweden
Duration: 18 Jul 202123 Jul 2021

Publication series

NameECS Transactions
Number1
Volume103
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
Country/TerritorySweden
CityStockholm
Period18/07/2123/07/21

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