Fabrication characteristics of SOFC single cell with thin LSGM electrolyte via tape-casting and co-sintering

Kyeong-Joon Kim; Seung-Woo Choi; Min-Young Kim; Moo-Sung Lee; Yu-Sin Kim; Ho-Sung Kim

Journal of Industrial and Engineering Chemistry, Vol.42, 69-74, October, 2016

DOI10.1016/j.jiec.2016.07.041 Export Citation

Fabrication characteristics of SOFC single cell with thin LSGM electrolyte via tape-casting and co-sintering

Kyeong-Joon Kim, Seung-Woo Choi, Min-Young Kim, Moo-Sung Lee¹, Yu-Sin Kim², and Ho-Sung Kim^†

Korea Institute of Industrial Technology (KITECH), 1110-9, Oryong-dong, Buk-gu, Gwangju 500-480, Republic of Korea
¹Chonnam National University, 300, Yongbong-Dong, Buk-gu, Gwangju 500-757, Republic of Korea
²True Digital Leader (TDL), 970-104, Wolchul-Dong, Buk-gu, Gwangju 500-460, Republic of Korea

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LSGM8282 (La0.8Sr0.2Ga0.8Mg0.2O3-δ) material as the solid electrolyte for intermediate temperature solid oxide fuel cells was synthesized by solid-state reaction. LSGM material with single phase was obtained by optimizing calcination and sintering temperatures. LSGM electrolyte layer, buffer layer (LDC) and anode layers (NiO/GDC) and its assembly were fabricated by the tape-casting and co-sintering process. Power density, impedance and durability of SOFC single cell were evaluated at intermediatetemperatures. As the result, LSGM showed high ionic conductivity of 0.16 S cm-1 at 800 °C. The single cell showed good power density of 1.24Wcm-2 at 2 A cm-2, ohmic resistance of 0.07 Ωcm2 at 800 °C and durability of 500 h.

Keywords:Solid oxide fuel cell;LSGM electrolyte;Anode-supported electrolyte;Tape-casting;Co-fire

[References]

Minh NQ, J. Am. Ceram. Soc., 76(3), 563 (1993)
Bozza F, et al., Electrochem. Commun., 11(8), 1680 (2009)
Leng YJ, Chan SH, Khor KA, Jiang SP, Int. J. Hydrog. Energy, 29(10), 1025 (2004)
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Huang P, Horky A, Petric A, J. Am. Ceram. Soc., 82(9), 2402 (1999)
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Rhodes WH, J. Am. Ceram. Soc., 64(1), 13 (1981)
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Kang JH, Kim YM, Lee MS, Jang JH, Jo JH, Kim HS, J. Fuel Cell Sci. Technol., 9(1), 011015 (2012)
Jeon HJ, Kim KJ, Kim MY, Choi SW, Lee MS, Oh MY, Kim HS, J. Ceram. Soc. Jpn., 123(4), 229 (2015)

[Referenced By]

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[1] Minh NQ, J. Am. Ceram. Soc., 76(3), 563 (1993)

[2] Bozza F, et al., Electrochem. Commun., 11(8), 1680 (2009)

[3] Leng YJ, Chan SH, Khor KA, Jiang SP, Int. J. Hydrog. Energy, 29(10), 1025 (2004)

[4] Hosomi T, Matsuda M, Miyake M, J. European Ceram. Soc., 27(1), 173 (2007)

[5] Singh P, Minh NQ, Int. J. Appl. Ceram. Technol., 1(1), 5 (2004)

[6] Acres GJK, J. Power Sources, 100(1-2), 60 (2001)

[7] Huang B, Ye XF, Wang SR, Nie HW, Liu RZ, Wen TL, Mater. Res. Bull., 42(9), 1705 (2007)

[8] Singhal SC, J. Korean Ceram. Soc., 42(12), 777 (2005)

[9] Arachi Y, Sakai H, Yamamoto O, Takeda Y, Imanishai N, Solid State Ion., 121(1-4), 133 (1999)

[10] Ishihara T, Matsuda H, Takita Y, J. Am. Chem. Soc., 116(9), 3801 (1994)

[11] Park JH, Crystal Chemistry for Ceramist, Bando Publications, 1901p. 62.

[12] Djurado E, Labeau M, J. European Ceram. Soc., 18(10), 1397 (1998)

[13] Huang P, Horky A, Petric A, J. Am. Ceram. Soc., 82(9), 2402 (1999)

[14] Song EH, et al., J. Korean Ceram. Soc., 43(5), 270 (2006)

[15] Brook RJ, Howlett SP, Wu SX, Elsevier Scientific, Amsterdam, 1982, pp. 135-144.

[16] Rhodes WH, J. Am. Ceram. Soc., 64(1), 13 (1981)

[17] Nernst W, Z. Electrochem., 6, 41 (1899)

[18] Kang JH, Kim YM, Lee MS, Jang JH, Jo JH, Kim HS, J. Fuel Cell Sci. Technol., 9(1), 011015 (2012)

[19] Jeon HJ, Kim KJ, Kim MY, Choi SW, Lee MS, Oh MY, Kim HS, J. Ceram. Soc. Jpn., 123(4), 229 (2015)