Abstract Structural batteries can simultaneously store electrical energy and carry mechanical load, being similar to both laminated carbon fiber composites and lithium ion batteries. The matrix in a structural battery must both conduct ions and transfer load between the fibers, made possible with a phase-separated combination of a solid polymer and a liquid electrolyte. This leads to a trade-off between the polymer contact creating adhesion and liquid contact creating ionic conductivity. Here we investigate the fiber-matrix adhesion between carbon fibres with different sizing and two different matrix systems, using microbond testing supported by transverse tensile tests. The results show that the mechanical adhesion of the fiber-matrix interface is lower than that of a commercial non-ion conducting polymer matrix but sufficient for structural battery applications.

中文翻译：

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结构电池电解质与碳纤维之间的粘合性能表征

摘要 结构电池可以同时储存电能和承载机械载荷，类似于层压碳纤维复合材料和锂离子电池。结构电池中的基体必须在纤维之间传导离子和转移负载，这可以通过固体聚合物和液体电解质的相分离组合来实现。这导致聚合物接触产生粘附力和液体接触产生离子电导率之间的权衡。在这里，我们使用横向拉伸测试支持的微粘合测试来研究具有不同尺寸的碳纤维和两种不同基体系统之间的纤维-基体粘附。