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Flexible graphite bipolar plate for fuel cell and preparation method of flexible graphite bipolar plate
The invention discloses a flexible graphite bipolar plate for a fuel cell and a preparation method of the flexible graphite bipolar plate, and relates to the field of fuel cell bipolar plates. According to the method, strong acid etching is combined with high-temperature treatment, so that the content of pores smaller than 0.1 mu m in the prefabricated slab is reduced; the hydrophilic performance of the prefabricated plate is enhanced by adding oxygen-containing functional groups, so that the wettability of mixed resin and the prefabricated plate is improved, the filling rate of the resin in the prefabricated plate is improved by enhancing the flowability of the resin under the same operation condition, and then the air tightness and physical strength of the finished graphite plate are improved.
本发明公开了一种燃料电池用柔性石墨双极板及其制备方法，涉及燃料电池双极板领域。本发明通过强酸蚀刻结合高温处理，降低预制板中小于0.1μm孔隙含量；通过含氧官能的添加增强预制板亲水性能，从而提升混合树脂与预制板的浸润性，在同等操作条件下，通过增强树脂的流动性来提高树脂在预制板中的填充率，进而提高石墨板成品的气密性和物理强度。
Flexible graphite bipolar plate for fuel cell and preparation method of flexible graphite bipolar plate
The invention discloses a flexible graphite bipolar plate for a fuel cell and a preparation method of the flexible graphite bipolar plate, and relates to the field of fuel cell bipolar plates. According to the method, strong acid etching is combined with high-temperature treatment, so that the content of pores smaller than 0.1 mu m in the prefabricated slab is reduced; the hydrophilic performance of the prefabricated plate is enhanced by adding oxygen-containing functional groups, so that the wettability of mixed resin and the prefabricated plate is improved, the filling rate of the resin in the prefabricated plate is improved by enhancing the flowability of the resin under the same operation condition, and then the air tightness and physical strength of the finished graphite plate are improved.
本发明公开了一种燃料电池用柔性石墨双极板及其制备方法，涉及燃料电池双极板领域。本发明通过强酸蚀刻结合高温处理，降低预制板中小于0.1μm孔隙含量；通过含氧官能的添加增强预制板亲水性能，从而提升混合树脂与预制板的浸润性，在同等操作条件下，通过增强树脂的流动性来提高树脂在预制板中的填充率，进而提高石墨板成品的气密性和物理强度。
Flexible graphite bipolar plate for fuel cell and preparation method of flexible graphite bipolar plate
一种燃料电池用柔性石墨双极板及其制备方法
XU CHAOJIE (author) / NI HUAISHENG (author) / CAO YINLIANG (author) / NING XINGJIE (author) / WU YULONG (author) / ZHANG WEITANG (author) / HAN YIFAN (author)
2024-12-27
Patent
Electronic Resource
Chinese
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