工艺与制造英文2023被引 3
立体光刻3D打印电极在氧化还原液流电池中的传质关系研究
Investigating mass transfer relationships in stereolithography 3D printed electrodes for redox flow batteries
Maxime van der Heijden, Marit Kroese, Zandrie Borneman, Antoni Forner‐Cuenca · Eindhoven University of Technology
摘要整理
多孔电极控制着氧化还原液流电池的电化学性能和泵送需求，但传统碳纤维基多孔电极尚未针对液相电化学要求进行优化设计。3D打印是制造确定性结构的有效方法，能够调控电化学性能和压降。本研究采用立体光刻3D打印技术制造网格模型结构，经炭化处理后用作液流电池电极材料。通过显微镜、断层扫描、光谱学、流体动力学和电化学诊断等手段，系统研究了有序晶格结构的电极性质、传质特性和压降。研究了打印方向、柱体几何形状和流场类型对电池性能的影响，阐明了传质速率与电极结构的关联规律。结果表明：打印方向通过改变形貌影响电极性能，对角线打印的电极性能更优；螺旋形或三角形柱体形状以及交错流场设计能改善电极内传质速率。研究证明立体光刻3D打印技术在制造定制化电极支架中具有潜力，可实现多尺度结构设计，获得优异的电化学性能和低泵送损耗。
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