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PVDF/SBS柔性复合纤维薄膜压电-摩擦电纳米发电机

刘荆堰 陈子航 姜啟恒 熊娟

刘荆堰, 陈子航, 姜啟恒, 等. PVDF/SBS柔性复合纤维薄膜压电-摩擦电纳米发电机[J]. 复合材料学报, 2023, 40(7): 4022-4029. doi: 10.13801/j.cnki.fhclxb.20220915.007
引用本文: 刘荆堰, 陈子航, 姜啟恒, 等. PVDF/SBS柔性复合纤维薄膜压电-摩擦电纳米发电机[J]. 复合材料学报, 2023, 40(7): 4022-4029. doi: 10.13801/j.cnki.fhclxb.20220915.007
LIU Jingyan, CHEN Zihang, JIANG Qiheng, et al. Piezoelectric/triboelectric nanogenerator based on PVDF/SBS flexible composite fiber film[J]. Acta Materiae Compositae Sinica, 2023, 40(7): 4022-4029. doi: 10.13801/j.cnki.fhclxb.20220915.007
Citation: LIU Jingyan, CHEN Zihang, JIANG Qiheng, et al. Piezoelectric/triboelectric nanogenerator based on PVDF/SBS flexible composite fiber film[J]. Acta Materiae Compositae Sinica, 2023, 40(7): 4022-4029. doi: 10.13801/j.cnki.fhclxb.20220915.007

PVDF/SBS柔性复合纤维薄膜压电-摩擦电纳米发电机

doi: 10.13801/j.cnki.fhclxb.20220915.007
基金项目: 国家自然科学基金区域创新发展联合基金项目(210301001018)
详细信息
    通讯作者:

    熊娟,博士,副教授,硕士生导师,研究方向为能源转换材料与器件 E-mail: juanxiong@hubu.edu.cn

  • 中图分类号: TB34;TB332

Piezoelectric/triboelectric nanogenerator based on PVDF/SBS flexible composite fiber film

Funds: National Natural Science Foundation of China Regional Innovation and Development Joint Fund Project (210301001018)
  • 摘要: 可将无规则机械能转换为电能的压电纳米发电机与摩擦纳米发电机能够为低功耗可穿戴电子设备提供独立、持续性供电,有利于促进柔性自供能电子器件多元化的发展。将二者进行集成,可综合二者电输出特性的优点,提高纳米发电机的性能。本文分别以聚偏二氟乙烯(PVDF)与苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)为正、负极摩擦材料,采用静电纺丝方法制备了PVDF/SBS复合纤维薄膜,并利用该复合纤维薄膜得到压电-摩擦电复合纳米发电机。研究结果表明:当PVDF掺入量为20wt%时,PVDF/SBS复合纤维薄膜的电学输出性能最佳,器件的开路电压与短路电流最大可达108 V与0.34 μA,分别是纯SBS样品的5倍与6倍。将器件固定在手掌、鞋底处,收集拍手、行走、跑步等运动的能量,可产生不同幅度的输出电压,表明器件可有效收集人体运动的机械能;通过手掌拍打器件,可点亮64只商用蓝色LED灯珠;同时器件可检测瞬时压力变化,灵敏度最大可达3.685 V·N−1。上述结果表明PVDF/SBS柔性复合纤维薄膜压电-摩擦电纳米发电机在传感监测和电子器件自供能领域具有良好的应用前景。

     

  • 图  1  聚偏二氟乙烯/苯乙烯-丁二烯-苯乙烯嵌段共聚物(PVDF/SBS)复合纤维薄膜的SEM截面图像

    Figure  1.  SEM section image of polyvinyl fluoride/styrene butadiene styrene block copolymer (PVDF/SBS) composite fiber

    图  2  不同PVDF含量的PVDF/SBS复合纤维的SEM图像:(a) 0wt%;(b) 5wt%;(c) 10wt%;(d) 15wt%;(e) 20wt%;(f) 30wt%及局部放大图

    Figure  2.  SEM images of PVDF/SBS composite fiber with different PVDF contents: (a) 0wt%; (b) 5wt%; (c) 10wt%; (d) 15wt%; (e) 20wt%; (f) 30wt% and partially enlarged image

    图  3  不同质量分数PVDF/SBS复合纤维薄膜的FTIR图谱

    Figure  3.  FTIR spectra of PVDF/SBS composite fiber films with different mass fractions of PVDF

    图  4  (a) PVDF/SBS压电-摩擦电复合纳米发电机;(b) PVDF/SBS复合纤维薄膜

    Figure  4.  Optical photos of PVDF/SBS piezoelectric/triboelectric composite nanogenerator (a) and PVDF/SBS composite fiber film (b)

    图  5  不同质量分数PVDF/SBS压电-摩擦电复合纳米发电机的输出响应:(a) 开路电压;(b) 短路电流

    Figure  5.  PVDF/SBS piezoelectric/triboelectric composite nanogenerator with different mass fraction of PVDF: (a) Open-circuit voltage;(b) short- circuit current

    图  6  PVDF/SBS压电-摩擦电复合纳米发电机工作原理图

    Figure  6.  Working principle diagram of PVDF/SBS piezoelectric/triboelectric composite nanogenerator

    IT—Triboelectric current; IP—Piezoelectric current

    图  7  PVDF/SBS压电-摩擦电复合纳米发电机对人体运动的传感:(a) 拍手时的电输出响应;(b) 拍手时输出响应时间;(c) 人体走路、小跑、蹦跳时的电输出响应

    Figure  7.  PVDF/SBS piezoelectric/triboelectric composite nanogenerator for human motion sensing: (a) Electrical output response when clapping; (b) Response time when clapping; (c) Electrical output response when walking, trotting and jumping

    图  8  PVDF/SBS压电-摩擦电复合纳米发电机点亮64个蓝色LED

    Figure  8.  PVDF/SBS piezoelectric/triboelectric composite nanogenerator lights up 64 blue LEDs

    图  9  PVDF 含量 20wt% 的PVDF/SBS压电-摩擦电复合纳米发电机对不同外力的电压输出信号及灵敏度特性:(a) 0.42 N;(b) 0.56 N;(c) 0.72 N;(d) 1.11 N;(e) 1.57 N;(f) 1.77 N;(g) 0.42 N下响应时间;1.77 N下响应时间 (h) 及器件灵敏度 (i)

    Figure  9.  Voltage output signals and sensitivity characteristics of PVDF/SBS piezoelectric/triboelectric composite nanogenerator with PVDF content 20wt% to different forces: (a) 0.42 N; (b) 0.56 N; (c) 0.72 N; (d) 1.11 N; (e) 1.57 N; (f) 1.77 N; (g) Response time in 0.42 N; Response time (h) and the sensitivity (i) of the device in 1.77 N

    SL1—Sensitivity of the low-pressure region; SL2—Sensitivity of the high-pressure region

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出版历程
  • 收稿日期:  2022-08-08
  • 修回日期:  2022-08-31
  • 录用日期:  2022-09-09
  • 网络出版日期:  2022-09-16
  • 刊出日期:  2023-07-15

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