A novel solid oxide electrochemical oxygen pump for oxygen therapy
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A solid oxide electrochemical oxygen pump was developed in tubular geometry with YSZ electrolyte and LSCF/CGO symmetrical air electrodes. The cells were manufactured based on green symmetrical porous YSZ electrode backbones cast on the green YSZ electrolyte tape, rolled into tubular geometry, co-sintered and impregnated with functional materials. The prepared cell had a thin 16 μm-electrolyte and supporting 76 μm-symmetric electrodes. At 700 °C, 2.8 A current (0.8 A cm−2) was obtained under 0.5 V in the single tubular cell infiltrated with 30% CGO and 45% LSCF. A four cell bundle produced theoretical 1.82 l hr−1 O2 with a power consumption of 2.18 W at 700 °C. Excellent stability of the cells was achieved during severe current and thermal cycling tests, indicating the successful fabrication of the tubular cells using the tape co-casting method.
Wang , M , Nowicki , K M & Irvine , J T S 2022 , ' A novel solid oxide electrochemical oxygen pump for oxygen therapy ' , Journal of The Electrochemical Society , vol. 169 , no. 6 , 064509 . https://doi.org/10.1149/1945-7111/ac7008
Journal of The Electrochemical Society
Copyright © 2022 The Author(s). Published on behalf of The Electrochemical Society by IOP Publishing Limited. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.
DescriptionThe authors would like to acknowledge the Scottish Funding Council for support this work and EPSRC for the Scios and EM equipment (EP/L017008/1, EP/T019298/1).
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