ASSEMBLY METHOD OF FUEL BATTERY STACK AND FUEL BATTERY STACK, AND POWER GENERATION MODULE

PROBLEM TO BE SOLVED: To provide a stack which allows easy assembly, ensures excellent gas sealing performance, and has high reliability.SOLUTION: A glass sealing material 50 is arranged between a cap 48 under each of a plurality of fuel battery cells 40 and a support plate 36 of a fuel gas manifold...

Full description

Saved in:
Bibliographic Details
Main Authors UKAI KENJI, MUTO TAKUMA
Format Patent
LanguageEnglish
Japanese
Published 20.09.2018
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:PROBLEM TO BE SOLVED: To provide a stack which allows easy assembly, ensures excellent gas sealing performance, and has high reliability.SOLUTION: A glass sealing material 50 is arranged between a cap 48 under each of a plurality of fuel battery cells 40 and a support plate 36 of a fuel gas manifold 34. A coil spring 68 is arranged between a cap 48 over each of the plurality of fuel battery cells 40 and a top plate 66 of a support jig 60. Then, the glass sealing material 50 is baked while each of the fuel battery cells 40 is biased downward by biasing force of the coil spring 68. As a result, the glass sealing material 50 can be baked with a compression load applied to the glass sealing material 50, thereby making it possible for the glass sealing material 50 to wet-spread. This increases a sealing area of the glass sealing material 50, thus ensuring excellent gas sealing performance.SELECTED DRAWING: Figure 4 【課題】組み付けが容易で、良好なガスシール性を確保して、信頼性の高いスタックを提供する。【解決手段】複数の燃料電池セル40の下側のキャップ48と燃料ガスマニホールド34の支持板36との間にガラスシール材50をそれぞれ配置し、複数の燃料電池セル40の上側のキャップ48と支持治具60の天板66との間にそれぞれコイルバネ68を配置し、コイルバネ68の付勢力によって各燃料電池セル40を下方に付勢した状態でガラスシール材50を焼成する。これにより、ガラスシール材50に圧縮荷重がかかった状態でガラスシール材50を焼成できるため、ガラスシール材50を濡れ広がらせることができ、ガラスシール材50のシール面積を増やして、良好なガスシール性を確保することができる。【選択図】図4
Bibliography:Application Number: JP20170040288