Unlock instant, AI-driven research and patent intelligence for your innovation.

Superlattice electrolyte preparation technology

A preparation process and superlattice technology are applied in the field of preparation technology of solid oxide fuel cell electrolytes, which can solve problems such as the reduction of film conductivity, and achieve the effects of improving ionic conductivity and oxygen ion mobility.

Inactive Publication Date: 2015-10-28
INNER MONGOLIA UNIVERSITY
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Korte et al. Design YSZ / Y 2 o 3 The two multilayer film structures are on the sapphire (0001) substrate, and the different material selections are to increase and decrease the stress of the YSZ layer respectively. It was found that the conductivity of the film decreases when the stress decreases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Superlattice electrolyte preparation technology
  • Superlattice electrolyte preparation technology
  • Superlattice electrolyte preparation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] 1. Experimental raw materials

[0012] 8% mol Y 2 o 3 : ZrO 2 Target material, purity 99.999%, size φ50.8×5.0mm, Hefei Kejing Material Technology Co., Ltd.; Ce 0.8 SM 0.2 o 2-δ Target (SDC), purity 99.999%, size φ50.8×5.0mm, Hefei Kejing Material Technology Co., Ltd.; MgO substrate, single-sided polishing, (110) crystal orientation, size 10×10×0.5mm, Hefei Kejing Materials Technology Co., Ltd.

[0013] 2. Experimental equipment

[0014] Table 1 Main experimental instruments and equipment

[0015]

[0016] 3. (SDC / YSZ) N The preparation process of the superlattice electrolyte thin film adopts the PLD-450 pulsed laser sputtering apparatus produced by the Shenyang Scientific Instrument Factory of the Chinese Academy of Sciences. The chamber is equipped with four independent targets. The laser is the COMPexPro201 produced by Coherent Inc. Pulsed excimer laser, the sputtering target is made of high-purity YSZ (0.08Y 2 o 3 : 0.92ZrO 2 ) target and SDC target (9...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a superlattice electrolyte preparation technology. A pulsed laser deposition method is adopted, the method can be used for manufacturing a multilayer film easily, the multilayer film can be manufactured by simply changing a target, the response is rapid, and the growth is rapid. The target can be easily prepared, and does not need to be heated, and an extension single crystal film with a consistent orientation structure can be easily grown in situ under a low temperature. According to the preparation technology, the operation temperature of a solid oxide fuel cell can be effectively reduced; a (SDC / YSZ)N superlattice film can be prepared on a MgO substrate which is unilaterally polished; the conductivity activation energy minimum value of the (SDC / YSZ)N superlattice film is 0.76 eV between 300 DEG C and 500 DEG C; and when the temperature is 300 DEG C, the measured conductivity is three orders of magnitudes higher than the conductivity of a host material, so that the work temperature of the cell is effectively reduced, and the service life of the cell can be prolonged.

Description

technical field [0001] The invention relates to a low-temperature superlattice (SDC / YSZ) N The electrolyte preparation process, in particular, refers to a solid oxide fuel cell electrolyte preparation process. Background technique [0002] The conductivity of the electrolyte determines the operating temperature of the fuel cell. To make the fuel cell have a wide application prospect, it is necessary to reduce the operating temperature of the SOFC. Therefore, it is necessary to develop new electrolyte materials with high ion conductivity at low temperatures. The traditional yttrium-stabilized zirconia (YSZ), which is chemically stable, is a relatively common oxygen ion conductor. Through Y doping, tetravalent Zr 4+ Trivalent Y 3+ Substitution, thereby generating more oxygen vacancies, so that YSZ has high ionic conductivity and negligible electronic conductivity in a large oxygen partial pressure range, and is widely used in SOFC. However, when YSZ is used as an electroly...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/34C23C14/08H01M8/12
CPCY02E60/50Y02P70/50
Inventor 丁铁柱范悦许彦彬刘华艳
Owner INNER MONGOLIA UNIVERSITY