Hybrid additive manufacturing of the modified electrolyte‐electrode surface of planar solid oxide fuel cells

Abstract

Digital Control of the surface patterning of functional layers of solid oxide fuel cells (SOFCs), via the inkjet printing technique, offers better efficiency in performance. A combination of inkjet printing and tape casting in a single machine system defines as hybrid additive manufacturing, facilitates printing complex structures. Also, implementing this idea removes the blocking of the print head nozzle orifice issue. In this paper, a highly dispersed and long‐term stable colloidal zirconia‐based suspension, with optimal printability characteristics, is designed to be prepared in approximately three hours to fabricate the macro patterned structure of the SOFC electrolyte. Hybrid Additive Manufacturing is successfully employed to make a symmetric cathode side cell with a modified electrolyte‐electrode surface to reduce the electron resistivity.

Mesh patterned electrolyte supports for high‐performance solid oxide fuel cells

“…29,30 This can be done by creating various patterns on the electrolyte surface via different methods. In this respect, micro powder imprinting, [31][32][33] sandblasting, 34,35 lithography, 36,37 laser machining, [38][39][40][41] inkjet printing, 42,43 and various spraying methods [44][45][46] have been employed in the literature. Although different rates of improvement in the cell performance were reported in these studies based on the fabrication method and the pattern created, surface patterning of the electrolyte seems to be very effective to increase the power output.…”

“…The improved performance is not only due to increased surface area of electrolyte–electrode interfaces but also due to partially reduced electrolyte thickness. Salari et al, 42 on the other hand, created 13‐μm height (after sintering) 3YSZ pillars on 3YSZ electrolyte via inkjet printing method. Decreased interfacial resistance values were reported for the cell with pillars due to improved electrochemical reaction kinetic.…”

Katı oksit yakıt pillerinde elektrolit-elektrot arayüzey iyileştirilmesi

“…[10] ise KOYP elektrolit üzerinde benzer mikro ölçekli desenlerin mikro toz baskı yöntemi ile de üretilebileceğini rapor etmiştir. Kum püskürtme [11,12], mürekkep püskürtmeli baskı [13,14], lazer işleme [15] ve spin kaplama [16] artırılmış yüzey alanına sahip KOYP elektrolit üretimi için literatürde kullanılan diğer yöntemler olarak dikkat çekmektedir.…”

Systematic Analysis on the Effect of Sintering Temperature for Optimized Performance of Li0.15Ni0.45Zn0.4O2-Gd0.2Ce0.8O2-Li2CO3-Na2CO3-K2CO3 Based 3D Printed Single-Layer Ceramic Fuel Cell

“…To bring this potential fuel cell technology closer to commercialization, there is a need to fabricate these devices with suitable up-scalable technologies such as printing methods. Digital manufacturing has been recently introduced to fabricate ceramic fuel cells [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ]. Digital manufacturing offers various advantages over conventional printing techniques such as screen printing [ 38 , 39 ] and tape casting [ 40 , 41 ].…”

“…On the contrary, conventional printing techniques restrict the shape of the cell architecture to planner and tubular designs. Several digital printing technologies, including direct inkjet printing [ 23 , 24 ], selective laser sintering [ 25 , 26 ], stereolithography [ 27 , 28 ], digital light processing [ 29 , 30 ], robocasting or extrusion (also known as direct writing) [ 31 , 32 , 33 , 34 ], a hybrid of different technologies [ 35 , 36 , 37 ] etc., have been used to fabricate the anode, electrolyte or cathode of a three-layer ceramic fuel cells. Among these technologies, extrusion-based 3D printing is one of the most promising technologies to fabricate single-layer ceramic fuel cells with the least material waste, and it is employed in this work.…”