MEMBRANE-ELECTRODE ASSEMBLY MANUFACTURING DEVICE

PROBLEM TO BE SOLVED: To reduce the streak formation in a catalyst ink-coated face of a membrane-electrode assembly and basis weight defectives.SOLUTION: A membrane-electrode assembly manufacturing device comprises: an electrolyte membrane supplying unit for supplying a belt-shaped electrolyte membr...

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Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To reduce the streak formation in a catalyst ink-coated face of a membrane-electrode assembly and basis weight defectives.SOLUTION: A membrane-electrode assembly manufacturing device comprises: an electrolyte membrane supplying unit for supplying a belt-shaped electrolyte membrane; a transport unit for transporting the electrolyte membrane supplied from the electrolyte membrane supplying unit; a defect-detecting unit for detecting a defective portion of the electrolyte membrane; a coating unit disposed on a forward direction side of a transporting direction of the electrolyte membrane with respect to the defect-detecting unit, for uninterruptedly coating a catalyst ink for forming an electrode catalyst layer on one face of the electrolyte membrane; a dry unit for drying the catalyst ink coated on the electrolyte membrane; a coating-avoiding unit for putting at least part of the electrolyte membrane in a state of being uncoated with the catalyst ink; and a control unit for controlling the respective units. The control unit controls the coating-avoiding unit so that at least part of a defective portion detected by the defect-detecting unit is put in the state of being uncoated with the catalyst ink.SELECTED DRAWING: Figure 1 【課題】膜電極接合体の触媒インクの塗工面のスジや目付け不良を低減する。【解決手段】 膜電極接合体の製造装置であって、帯状の電解質膜を供給する電解質膜供給部と、電解質膜供給部から供給された電解質膜を搬送する搬送部と、電解質膜の欠陥部位を検出する欠陥検出部と、欠陥検出部に対して電解質膜の搬送方向の順方向側に配置され、電解質膜の一方の面に、電極触媒層を形成する触媒インクを連続的に塗工する塗工部と、電解質膜に塗工された触媒インクを乾燥させる乾燥部と、電解質膜の少なくとも一部が触媒インクに被覆されていない状態にする非被覆加工部と、各部を制御する制御部と、を備え、制御部は、欠陥検出部によって検出された欠陥部位の少なくとも一部が触媒インクに被覆されていない状態になるように非被覆加工部を制御する。【選択図】図1