Processing methods for conductive polymer composite bipolar plates: Effect on plate quality and performance

IF 2.6 4区工程技术 Q3 ELECTROCHEMISTRY Fuel Cells Pub Date : 2023-01-20 DOI:10.1002/fuce.202100157

Oluwaseun Ayotunde Alo, Iyiola Olatunji Otunniyi, Emmanuel Rotimi Sadiku

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引用次数: 4

Abstract

Conductive polymer composites (CPCs) have been identified as viable replacements for graphite and metals for polymer electrolyte membrane fuel cell (PEMFC) bipolar plates (BPs). One important factor, apart from composite formulation, that affects the quality and properties of CPC BPs is the processing route. Therefore, understanding the possible processing methods for different matrix–filler combinations and their effects on the quality and properties of the plates can help in controlling and improving the final performance of BPs. This paper reviews the blending and molding techniques for CPC BPs, with a focus on relationship between formulation and processing method. The effects of processing route and conditions on microstructural features of CPC BPs, which affect the performance of the plates are also discussed. Finally, directions for further studies with potential to advance the development of quality and high-performance CPC BPs are highlighted. Identified key areas for further research include control of filler orientation to improve through-plane conductivity, correlation between processing parameters and dimensional accuracy of molded plates, and additive manufacturing of composite BPs.

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导电聚合物复合双极板的加工方法:对极板质量和性能的影响

导电聚合物复合材料（CPC）已被确定为聚合物电解质膜燃料电池（PEMFC）双极板（BP）中石墨和金属的可行替代品。除了复合配方外，影响CPC BPs质量和性能的一个重要因素是加工路线。因此，了解不同基质-填料组合的可能加工方法及其对板材质量和性能的影响，有助于控制和提高BPs的最终性能。本文综述了CPC BPs的共混和成型技术，重点讨论了配方和加工方法之间的关系。还讨论了工艺路线和条件对CPC BPs微观结构特征的影响，这些特征会影响板的性能。最后，强调了进一步研究的方向，这些研究有可能推动高质量和高性能CPC BP的发展。已确定的进一步研究的关键领域包括控制填料方向以提高通平面导电性、成型板的加工参数和尺寸精度之间的相关性，以及复合材料BP的增材制造。

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来源期刊

Fuel Cells 工程技术-电化学

CiteScore

5.80

自引率

3.60%

发文量

审稿时长

3.7 months

期刊介绍： This journal is only available online from 2011 onwards. Fuel Cells — From Fundamentals to Systems publishes on all aspects of fuel cells, ranging from their molecular basis to their applications in systems such as power plants, road vehicles and power sources in portables. Fuel Cells is a platform for scientific exchange in a diverse interdisciplinary field. All related work in -chemistry- materials science- physics- chemical engineering- electrical engineering- mechanical engineering- is included. Fuel Cells—From Fundamentals to Systems has an International Editorial Board and Editorial Advisory Board, with each Editor being a renowned expert representing a key discipline in the field from either a distinguished academic institution or one of the globally leading companies. Fuel Cells—From Fundamentals to Systems is designed to meet the needs of scientists and engineers who are actively working in the field. Until now, information on materials, stack technology and system approaches has been dispersed over a number of traditional scientific journals dedicated to classical disciplines such as electrochemistry, materials science or power technology. Fuel Cells—From Fundamentals to Systems concentrates on the publication of peer-reviewed original research papers and reviews.