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Proton conductor low-temperature solid oxide cell with integrated components and preparation of proton conductor low-temperature solid oxide cell

A solid oxide and proton conductor technology, applied in solid electrolyte fuel cells, fuel cells, battery electrodes, etc., can solve the problems of poor stability of SOCs, high operating temperature, poor activity, etc., and achieve low operating temperature, low operating temperature, The effect of stabilizing the structure

Active Publication Date: 2016-07-13
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the shortcomings and deficiencies of the above-mentioned prior art SOCs such as poor stability, poor activity, and high operating temperature, the primary purpose of the present invention is to provide a proton conductor low-temperature solid oxide battery with integrated components

Method used

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  • Proton conductor low-temperature solid oxide cell with integrated components and preparation of proton conductor low-temperature solid oxide cell
  • Proton conductor low-temperature solid oxide cell with integrated components and preparation of proton conductor low-temperature solid oxide cell
  • Proton conductor low-temperature solid oxide cell with integrated components and preparation of proton conductor low-temperature solid oxide cell

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Experimental program
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Effect test

Embodiment 1

[0041] Using high-purity BaCO 3 , ZrO 2 , and Y 2 o 3 powder (analytically pure), according to the chemical formula BaZr 0.9 Y 0.1 o 3 The stoichiometric ratio was weighed and the ingredients were weighed; then it was wet-milled for 5 hours in a ball mill tank with absolute ethanol as a medium, dried, and roasted for 10 hours in an air atmosphere at 1200°C; the prepared powder was placed in a ball mill tank Using absolute ethanol as the medium, wet grinding for 2 hours, mixing evenly, drying, and then pressing to obtain a green body; finally, the green body was sintered at 1350°C for 10 hours to obtain BaZr 0.9 Y 0.1 o 3 Material.

[0042] 75% BaZr 0.9 Y 0.1 o 3 +25% carbon is obtained by dry pressing to obtain a 0.5mm thick substrate, and then pressed into pure BaZr 0.9 Y 0.1 o 3 , the third layer is paved with 85% BaZr 0.9 Y 0.1 o 3 +15% Carbon. By sintering at 1600°C for 10 hours, the electrode-supported SOCs with electrolyte layer density of 96% and elect...

Embodiment 2

[0047] Prepare BaCe with embodiment 1 step 0.8 Y 0.2 o 3 Material. 65% BaCe 0.8 Y 0.2 o 3 +35% carbon is obtained by dry pressing to obtain a 0.5mm thick substrate, and then pressed into pure BaCe 0.8 Y 0.2 o 3 , the third layer is paved with 75% BaCe 0.8 Y 0.2 o 3 +25% carbon. By sintering at 1500°C for 10 hours, the electrode-supported SOCs with electrolyte layer density of 98% and electrode layer porosity of 40% were obtained.

[0048] Ni(NO 3 ) 3 Immersed into the porous electrode layer and baked at 800°C to obtain an integrated proton conductor low-temperature solid oxide battery composed of an electrocatalyst whose shape is nano-particles in the electrode layer.

Embodiment 3

[0050] Prepare SrCe with embodiment 1 step 0.95 Yb 0.05 o 3 Material. 55%SrCe 0.95 Yb 0.05 o 3 +45% carbon is obtained by dry pressing to obtain a 0.5mm thick substrate, and then pressed into pure SrCe 0.95 Yb 0.05 o 3 , the third layer is paved with 60% SrCe 0.95 Yb 0.05 o 3 +40% Carbon. By sintering at 1400°C for 10 hours, the electrode-supported SOCs with electrolyte layer density of 96% and electrode layer porosity of 50% were obtained.

[0051] Fe(NO 3 ) 3 Immersed into the porous electrode layer and baked at 800°C to obtain an integrated proton conductor low-temperature solid oxide battery composed of an electrocatalyst whose shape is nano-particles in the electrode layer.

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Abstract

The invention belongs to the technical field of fuel cells and electrolytic cells, and discloses a proton conductor low-temperature solid oxide cell with integrated components and a preparation method of the proton conductor low-temperature solid oxide cell.The cell comprises an anode layer, a cathode layer and a proton conductor electrolyte layer sandwiched between the anode layer and the cathode layer, wherein the proton conductor electrolyte layer contains at least one of BaZrO3-based oxide, BaCeO3-based oxide, SrZrO3-based oxide, SrCeO3-based oxide and CaZrO3-based oxide; and the components of the anode layer and the cathode layer are consistent to the oxides selected by the proton conductor electrolyte layer; the cathode layer and the anode layer have porous structures; and the proton conductor electrolyte layer has a non-continuous hole structure.The proton conductor low-temperature solid oxide cell with the integrated components has low operation temperature, stable structure and good operation stability, and can be used for solid oxide fuel cells or solid oxide electrolytic cells.

Description

technical field [0001] The invention belongs to the technical field of fuel cells and electrolytic cells, in particular to a proton conductor low-temperature solid oxide cell with integrated components and a preparation method thereof. Background technique [0002] Solid oxide cells (SOCs) generally include solid oxide fuel cells (SOFCs, which convert chemical energy into electricity) and solid oxide electrolysis cells (SOECs, which use electrical energy to generate fuel). According to different application purposes, one SOCs can be applied in SOFCs or in SOECs, so it is called reversible solid oxide batteries (R-SOCs). [0003] R-SOCs generally consist of three main components: cathode, anode, and electrolyte. R-SOCs have strict requirements on the selection of electrode and electrolyte materials: the electrolyte must have a dense microstructure, and must have a sufficiently high ion / proton conductivity, but at the same time require a sufficiently low electronic conductivi...

Claims

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Application Information

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IPC IPC(8): H01M8/10H01M8/1016H01M4/94
CPCH01M4/94H01M8/1016H01M8/1069H01M2008/1293Y02E60/50Y02P70/50
Inventor 陈登洁尚贞西陈哲钦
Owner JINAN UNIVERSITY
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