Higher strength carbon fiber lithium‐ion polymer battery embedded multifunctional composites for structural applications
Higher strength carbon fiber lithium‐ion polymer battery embedded multifunctional composites for structural applications
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DOI：
10.1002/pc.26589
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发表时间：
2022-03
影响因子：
5.2
通讯作者：
P. Biswas;Asel Habarakada Liyanage;Mayur M. Jadhav;Mangilal Agarwal;H. Dalir
中科院分区：
文献类型：
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作者：
P. Biswas;Asel Habarakada Liyanage;Mayur M. Jadhav;Mangilal Agarwal;H. Dalir
本研究提出并评估了含有封装锂离子聚合物（Li-Po）电池的碳纤维增强聚合物（CFRP）复合材料的结构完整性。对具有锂离子电池芯的由CFRP制成的各种复合结构进行了比较。静电纺丝是全球公认的一种灵活且具有成本效益的方法，用于产生连续的纳米丝。在这项研究中，环氧树脂-多壁碳纳米管（CNT/环氧树脂）被静电纺丝到CFRP层上，这改善了层之间的界面结合和强粘附力，最终成为锂离子电池的有效包装。这种复合材料结构显示出增强的机械强度相比，标准的CFRP层压结构，由于将电纺CNT/环氧树脂纳米纤维之间的层。提出了一种替代方法用于比较，其中CNT/环氧树脂被空气喷涂到CFRP层上。发现含有空气喷涂CNT/环氧树脂的CFRP结构比标准CFRP层压结构更强，尽管不如静电纺丝CNT/环氧树脂增强的CFRP层压结构那么强。最后，多功能储能复合材料（MESC）的设计验证，制造方法和机电特性进行了检查和比较。电化学表征表明，具有静电纺丝CNT/环氧树脂纳米纤维增强的CFRP层压板的MESC在负载条件下具有与没有任何负载的标准锂离子袋电池类似的性能。所提出的CFRP复合材料结构的机械鲁棒性使其能够作为电动汽车和其他结构应用的多功能储能装置进行制造。
This study proposes and evaluates the structural integrity of a carbon fiber reinforced polymer (CFRP) composite containing encapsulated lithium‐ion polymer (Li‐Po) batteries. A comparison of various composite structures made of CFRP having the core of lithium‐ion batteries is conducted. Electrospinning is globally recognized as a flexible and cost‐effective method for generating continuous nanofilaments. In this study, epoxy‐multiwalled carbon nanotubes (CNT/epoxy) were electrospun onto CFRP layers, which improved interfacial bonding and strong adhesion between the layers which ultimately worked as an effective packaging for Li‐ion batteries. This composite structure showed enhanced mechanical strength compared to the standard CFRP laminate structure due to incorporating electrospun CNT/epoxy nanofibers in between the layers. An alternate method was proposed for comparison where CNT/epoxy was air sprayed onto the CFRP layers. CFRP structure containing airsprayed CNT/epoxy was found to be stronger than standard CFRP laminate structure, although not as strong as electrospun CNT/epoxy enhanced CFRP laminates. Finally, the design validation, manufacturing method, and electromechanical characterization of multifunctional energy storage composites (MESCs) were examined and compared. Electrochemical characterization showed that MESCs with electrospun CNT/epoxy nanofibers enhanced CFRP laminate under loading conditions had similar performance to the standard lithium‐ion pouch cells without any loading. The mechanical robustness of the proposed CFRP composite structures enables their manufacturing as multifunctional energy‐storage devices for electric vehicles and other structural applications.