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Solid oxide battery with embedded regularly-arranged air passages and preparation method thereof

A solid oxide, regular technology, applied in the field of electrochemistry, can solve problems such as failure and scrapping, easy rupture of batteries, etc., and achieve the effect of increasing strength

Active Publication Date: 2021-03-09
ZHEJIANG ZHENTAI ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The batteries designed and manufactured in this way are easily broken during the assembly and use of the stack, which will lead to the failure of the entire stack, which is one of the main factors limiting the commercial and large-scale use of high-temperature solid oxide battery technology

Method used

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  • Solid oxide battery with embedded regularly-arranged air passages and preparation method thereof
  • Solid oxide battery with embedded regularly-arranged air passages and preparation method thereof
  • Solid oxide battery with embedded regularly-arranged air passages and preparation method thereof

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Experimental program
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Effect test

Embodiment 2

[0102] refer to Figure 4-Figure 6 , In the second embodiment, the outer surface of the electrolyte 1 is arranged with an outer surface component, and the outer surface component includes an intermediate layer 5 , an inner electrode plate 6 and an outer electrode plate 7 . The inner electrode 2 and the inner electrode plate 6 are connected through the inner bus line 8 , and the outer electrode 3 is connected with the outer electrode plate 7 through the foreign exchange flow line 9 . The intermediate layer 5 can either cover the entire outer surface of the electrolyte 1 or partially cover the electrolyte 1 . The inner electrode plate 6 and the outer electrode plate 7 are respectively arranged at both ends of the battery, and the inner bus bar 8 is located on the end face of the cell.

[0103] The outer surface of the outer electrode 3 is provided with an outer current collecting wire 12 located on the outer surface of the outer electrode 3 , and the outer current collecting wi...

Embodiment 3

[0105] refer to Figure 7 , the cross-sectional structure of the solid oxide battery with the embedded regularly arranged air channels shown in the third embodiment is similar to the first embodiment, but in this embodiment, the inner current collector 14 is arranged on the outer surface of the inner electrode 2 , instead of the side of the battery, sandwiched between the side of the battery and the side sealing member 4 .

Embodiment 4

[0107] refer to Figure 8 The structure of the fourth embodiment is basically the same as that of the second embodiment. The difference is that the two ends of the battery in the fourth embodiment adopt a tapered design, and the angle α between the tapered hypotenuse and the straight side of the outer electrode working surface is 5 Between -60 degrees, preferably between 10-30 degrees. In the fourth embodiment, the outer current collector 12 is located on the outer surface of the outer electrode 3, and a connecting piece 15 for external connection is welded on the outer electrode plate 7. Preferably, the connecting piece 15 is made of copper, nickel, gold, Made of silver material.

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Abstract

The invention provides a solid oxide battery with embedded regularly-arranged air passages and a preparation method, which belong to the technical field of electrochemistry. A battery main body comprises a layer of electrolyte and an inner electrode for providing the whole mechanical strength of the battery, regularly arranged air passages are arranged in the inner electrode, at least two side surfaces of the inner electrode are covered with side sealing members, an outer surface part is arranged on the outer surface of the electrolyte, and the outer surface part at least comprises a middle layer and an outer electrode. The regular micro-channels embedded in the inner electrode enable gas flow resistance to be remarkably reduced when gas flows through the inner electrode, and the regular micro-channels dispersed in the inner electrode are beneficial to uniform distribution of the gas flowing through the inner electrode to all interface areas of the electrolyte and the electrode, so that the electrode reaction is more sufficient, and the electrical efficiency of the battery is higher.

Description

technical field [0001] The invention belongs to the technical field of electrochemistry, and relates to a solid oxide battery and a preparation method, in particular to a solid oxide battery with embedded and regularly arranged air passages and a preparation method. Background technique [0002] 1. The working principle of Solid Oxide Cell (SOC) [0003] Solid oxide battery (Solid Oxide Cell, SOC) is a ceramic electrochemical device with solid oxide as electrolyte, which consists of at least one layer of electrolyte and at least two electrodes. Solid oxide batteries, where the electrolyte provides the overall strength of the battery are called electrolyte-supported solid oxide batteries. The electrolyte material is usually doped stabilized zirconia, such as yttria doped stabilized zirconia (YSZ), Sc 2 O 3 Doped Stabilized Zirconia (ScSZ), Scandium Oxide Yttria Doped Stabilized Zirconia (ScYSZ), Scandium Oxide Ceria Doped Stabilized Zirconia (ScCeSZ) or Calcium Oxide CaO S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0258H01M8/1226H01M8/0276H01M4/86H01M4/88
CPCH01M8/0258H01M8/1226H01M8/0276H01M4/8657H01M4/8875H01M2008/1293Y02E60/50
Inventor 胡强吴剑
Owner ZHEJIANG ZHENTAI ENERGY TECH CO LTD