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A flat solid oxide fuel cell connector and cell stack

A solid oxide, fuel cell technology, used in fuel cells, electrical components, circuits, etc., can solve the problems of overall battery performance, poor thermo-mechanical stability, poor airflow distribution uniformity, etc., to improve overall performance and thermo-mechanical stability. Stability, improved battery performance, and improved airflow distribution uniformity

Active Publication Date: 2019-03-29
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the uniformity of airflow distribution under this structure is poor, resulting in poor overall performance and thermo-mechanical stability of the battery.

Method used

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  • A flat solid oxide fuel cell connector and cell stack
  • A flat solid oxide fuel cell connector and cell stack
  • A flat solid oxide fuel cell connector and cell stack

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 2 As shown, a flat-type solid oxide fuel cell connecting piece of the present invention includes a square connecting plate, and the connecting plate is made of ferritic stainless steel material, which has good electrical conductivity, large thermal conductivity, and expansion coefficient Small, good oxidation resistance, excellent stress corrosion resistance, can be applied in the working temperature range of 800-1000 ° C, the connecting plate includes the upper edge 2-3, the lower edge 2-4 and the two side edges 2-5, An air inlet 2-1 is arranged on the top of the connecting plate, and an air outlet 2-2 is arranged on the bottom of the connecting plate, and both the air inlet 2-1 and the air outlet 2-2 are circular ports .

[0028] A baffle 2-6 is provided on the top of the connecting plate close to the air in...

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Abstract

The invention discloses a flat plate type solid oxide fuel cell connector and a cell stack. The connector comprises a square-shaped connecting plate, wherein a baffle plate is arranged at a position,close to a gas inlet, of the upper part of the connecting plate; a plurality of gas flow distributors are uniformly arranged at positions, close to side edges, of two sides of the connecting plate atintervals; the gas flow distributors are perpendicularly arranged between the baffle plate and a lower edge of the connecting plate; two groups of parallel ribs parallel to the baffle plate are uniformly arranged on the connecting plate at intervals, and are located between the gas flow distributors on two sides of the connecting plate; a gas inlet passageway is arranged between an upper edge of the connecting plate and the baffle plate; two side gas passageways are arranged between side edges of the connecting plate and the gas flow distributors; a reaction zone gas channel is arranged between each two adjacent parallel ribs; a gas backflow passageway is arranged between the two groups of parallel ribs; a gas outlet is communicated with the gas backflow passageway. Through additionally arranging the baffle plate and the gas flow distributors, the uniformity of gas flow distribution in a solid oxide fuel cell is improved, and an overall performance and heat-mechanical stability of thecell are improved.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a flat-type solid oxide fuel cell connector and a cell stack. Background technique [0002] Solid oxide fuel cell (Solid Oxide Fuel Cell, SOFC for short) is a new type of high-efficiency and clean power generation device that can directly convert the chemical energy in the fuel into electrical energy through electrochemical reactions. Compared with other types of fuel cells, SOFC has the advantages of wide range of fuel use and high practical efficiency, and has great development potential in large-scale stationary power generation and distributed energy systems. [0003] The output voltage of the SOFC single cell is about 1V. In order to make SOFC practically applicable, several single cells need to be assembled into a cell stack in various ways (series, parallel, and hybrid). The structure of SOFC cell stack is mainly two types: tubular type and flat type. Among them, the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/2465
CPCH01M8/2465Y02E60/50Y02P70/50
Inventor 郑克晴林雪妹李丽申双林
Owner CHINA UNIV OF MINING & TECH
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