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Connecting plate and solid oxide fuel cell/electrolytic cell stack

A solid oxide and fuel cell technology, used in fuel cells, circuits, electrical components, etc., can solve problems such as affecting the service life of the stack and destroying the structure of the single cell, and achieve the effect of reducing the difficulty of packaging and prolonging the service life.

Active Publication Date: 2021-07-09
GUANGDONG INST OF NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the stack is running at high temperature, it is easy to damage the structure of the single cell due to the thermal stress deformation of the integrated connector, thus affecting the service life of the stack

Method used

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  • Connecting plate and solid oxide fuel cell/electrolytic cell stack
  • Connecting plate and solid oxide fuel cell/electrolytic cell stack
  • Connecting plate and solid oxide fuel cell/electrolytic cell stack

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Embodiment Construction

[0030] Since the solid oxide electrolytic cell and the fuel cell are a pair of energy conversion devices with the same structure and opposite working process, the specific implementation mode of this application is described by taking the solid oxide fuel cell as an example.

[0031] Generally, the operating voltage of a single solid oxide fuel cell can reach about 0.7V ~ 1.1V. Therefore, in order to improve electrical parameters such as output voltage and output power, it is usually necessary to integrate several, even dozens, or hundreds of The solid oxide fuel cells are connected together. Therefore, battery stack technology came into being.

[0032] In view of some defects and difficulties in the existing battery stack technology—for example, its sealing process is complicated, the production cost is high, etc.—the inventor proposes a novel connecting plate 200 used in the battery stack after research; the connecting plate 200 structured as figure 2 shown.

[0033] Uti...

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Abstract

The invention discloses a connecting plate and a solid oxide fuel cell / electrolytic cell stack, and belongs to the field of solid oxide fuel cells / electrolytic cells. The connecting plate is provided with a plate-shaped body, a first surface and a second surface, wherein the first surface and the second surface are arranged oppositely. The first surface of the plate-shaped body is provided with a groove for placing a single fuel cell / electrolytic cell, and the second surface of the plate-shaped body is provided with a plurality of flow channels for realizing gas introduction. Through cooperation of the groove and the flow channels, series connection of a plurality of self-sealing solid oxide fuel cells / electrolytic cells can be realized only through single-side sealing, and a solid oxide fuel cell / electrolytic cell stack is formed. By adopting the connecting plate, the packaging difficulty of the cell stack is reduced, the thermal stress in the running process of the cell stack is reduced, and the service life of the cell stack is prolonged.

Description

technical field [0001] The present application relates to the field of solid oxide fuel cells / electrolytic cells, in particular, to a connection plate and a stack of solid oxide fuel cells / electrolytic cells. Background technique [0002] As an all-solid-state power generation device that converts chemical energy in fuel directly into electrical energy through electrochemical reactions, solid oxide fuel cells have the advantages of high efficiency, zero pollution, and wide fuel applicability, and thus can be widely used in distributed Power plants, household combined heat and power, transportation and other fields. [0003] The power generation functional layer of a solid oxide fuel cell includes a cathode, an electrolyte, and an anode. When working, oxygen or air obtains electrons at the cathode of the battery to become oxygen ions, and the oxygen ions are transported to the anode through the solid electrolyte, and react with the fuel gas of the anode to generate water, ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/2475H01M8/0258H01M8/0271H01M8/0276
CPCH01M8/2475H01M8/0271H01M8/0258H01M8/0276H01M2008/1293Y02E60/50
Inventor 刘敏宋琛刘太楷王绍荣董东东文魁邓春明邓畅光马文有周克崧
Owner GUANGDONG INST OF NEW MATERIALS
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