低壓電漿改質石墨紙用於紙基流道式鋁空氣電池以改善其電化學性能之研究

Abstract

本研究透過低壓電漿對石墨紙表面進行塗覆催化劑層之前處理，並將塗覆催化劑之石墨紙應用於紙基流道式鋁空氣電池之陰極。在低壓電漿處理下，石墨紙表面產生物理及化學性變化，並對電化學性能有所影響。透過SEM、XPS及水接觸角，可觀察電漿處理前後石墨紙表面之形貌變化、表面元素及特定官能基含量之差異，以及表面親水性的不同；藉由LSV、CCD及EIS，可得知不同電漿參數下，組成鋁空氣電池後電化學性能之改變。整體而言，在10秒的低壓電漿處理下，鋁空氣電池將有最佳之電化學性能改善。

This study involves the pretreatment of the surface of graphite foil with low pressure plasma before coating a catalyst layer, and the application of the catalyst-coated graphite foil as the cathode in a paper-based fluidic aluminum air battery. Under low pressure plasma treatment, the surface of the graphite foil undergoes physical and chemical changes, affecting its electrochemical performance. The morphological changes, surface elemental differences, and variations in specific functional group content before and after plasma treatment can be observed through SEM, XPS, and water contact angle measurements. LSV, CCD, and EIS analyses reveal changes in the electrochemical performance of aluminum air batteries assembled under different plasma parameters. Overall, a 10 s low pressure plasma treatment yields the optimal improvement in electrochemical performance for the aluminum air battery.