Electrospun PVDF/PAN membrane for pressure sensor and sodium-ion battery separator

IF 15.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2021-10-18 DOI:10.1007/s42114-021-00364-4

Zhongzhu Liu, Gaojie Li, Qi Qin, Liwei Mi, Guanrui Li, Guoqiang Zheng, Chuntai Liu, Qian Li, Xianhu Liu

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引用次数: 71

Abstract

In this study, polyvinylidene fluoride/polyacrylonitrile (PVDF/PAN) membrane is fabricated via electrospinning method. Results indicate that the morphology of PVDF/PAN membrane is relatively uniform and its fiber diameter is mostly in the range of 100–300 nm. Meanwhile, β-phase is dominant (i.e., the β-phase content is 83.4%) in such membrane, and their tensile properties (i.e., tensile strength and elongation at break) are about 7 MPa and 26%, respectively. In addition, the membrane can be used as a piezoelectric nanogenerator due to its high β-phase content of PVDF. The piezoelectric nanogenerators (PENG) exhibit a good piezoelectric output voltage of 1.3 V when the impacting force is 1 N and durability. Moreover, it shows promising applications for real-time monitoring human movement (i.e., hopping, running, and walking) and different finger bending. Furthermore, such PVDF/PAN membrane can be utilized as a separator for sodium-ion battery, and the cell exhibits a stable cycle performance with a coulombic efficiency of 98.9% after 50 cycles.

Graphical abstract

查看原文本刊更多论文

用于压力传感器和钠离子电池隔膜的静电纺丝PVDF/PAN膜

本研究采用静电纺丝方法制备了聚偏氟乙烯/聚丙烯腈（PVDF/PAN）膜。结果表明，PVDF/PAN膜的形貌相对均匀，纤维直径大多在100–300nm范围内。同时，β相在该膜中占主导地位（即β相含量为83.4%），其拉伸性能（即拉伸强度和断裂伸长率）分别约为7MPa和26%。此外，由于PVDF的β相含量高，该膜可以用作压电纳米发生器。当冲击力为1N时，压电纳米发电机（PENG）表现出1.3V的良好压电输出电压和耐用性。此外，它在实时监测人类运动（即跳跃、跑步和行走）和不同手指弯曲方面显示出很有前途的应用。此外，这种PVDF/PAN膜可以用作钠离子电池的隔膜，并且该电池在50次循环后表现出稳定的循环性能，库仑效率为98.9%。图形摘要

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.