氰基丙烯酸乙酯基亲水性导电粘合剂的制备与应用研究

Preparation and Application of Eethyl Cyanoacrylate Based Hydrophilic Conductive Adhesive

电极粘合剂在储能系统的电极加工中起着重要作用。虽然传统的粘合剂通常需要危险且昂贵的有机溶剂,但越来越多地向更绿色、更便宜的粘合剂发展。该研究通过对氰基丙烯酸乙酯(ECA)与壳聚糖(CST)、聚乙二醇(PEG)、二氧化锰(MnO2)以及石墨烯浆料(G)进行简单复合,制备一种亲水性导电粘合剂浆料,并将其涂敷在集流体碳布(CC)上制备水系锌离子电极,以ZnSO4电解质通过三电极体系对电极进行电化学性能表征。研究表明,该粘合剂浆料无需加热烘干,并在滴定30s后接触角为61.2°,具有良好的亲水性。其制备的电极在1mA·cm-2电流密度下,面积比电容可以达到223.3mF·cm-2,当电流密度升至5mA·cm-2时,面积比电容为183.5mF·cm-2,保持率为82.2%。该研究为开发具有更好可持续性和改进功能的绿色聚合物粘合剂提供一种新的方法。

Electrode adhesive plays an important role in electrode processing of energy storage system.Although traditional adhesives usually require dangerous and expensive organic solvents,they are increasingly developing towards greener and cheaper adhesives.In this paper,a hydrophilic conductive adhesive slurry was prepared by a simple composite of ethyl cyanoacrylate(ECA)with chitosan(CST),polyethylene glycol(PEG),manganese dioxide(MnO2)and graphene slurry(G).In addition,the hydrophilic conductive adhesive slurry was applied to a current-collecting carbon cloth(CC)to prepare an aqueous electrode,the electrochemical performance of the electrode was characterized by a three-electrode system with ZnSO4 electrolyte.The research shows that the adhesive paste does not need to be heated and dried,and the contact angle is 61.2°after titration for 30s,which has good hydrophilicity.The area capacity of the prepared electrode can reach 223.3mF•cm^(-2) at 1mA•cm^(-2) current density.When the current density rises to 5mA•cm^(-2),the area capacity is 183.5mF•cm^(-2) and the retention rate is 82.2%.This research provides a new direction for the development of green polymer adhesives with better sustainability and improved functions.