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首页> 外文期刊>Advanced energy materials >Self-Supported Tin Sulfide Porous Films for Flexible Aluminum-Ion Batteries
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Self-Supported Tin Sulfide Porous Films for Flexible Aluminum-Ion Batteries

机译：用于柔性铝离子电池的自支撑硫化锡多孔膜

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摘要

High-performance flexible batteries are promising energy storage devices for portable and wearable electronics. Currently, the major obstacle to develop flexible batteries is the shortage of flexible electrodes with excellent electrochemical performance. Another challenge is the limited progress in the flexible batteries beyond Li-ion because of a safety concern for the Li-based electrochemical system. In this work, a self-supported tin sulfide (SnS) porous film (PF) is fabricated as a flexible cathode material in an Al-ion battery, which delivers a high specific capacity of 406 mAh g(-1). A capacity decay rate of 0.03% per cycle is achieved, indicating a good stability. The self-supported and flexible SnS film also shows an outstanding electrochemical performance and stability during dynamic and static bending tests. In situ transmission electron microscopy demonstrates that the porous structure of SnS is beneficial for minimizing the volume expansion during charge/discharge. This leads to an improved structural stability and superior long-term cyclability.
机译：高性能柔性电池是用于便携式和可穿戴电子设备的有前途的储能设备。当前，开发柔性电池的主要障碍是缺乏具有优异电化学性能的柔性电极。另一个挑战是由于基于锂的电化学系统的安全问题，柔性电池在锂离子电池以外的进展有限。在这项工作中，自支撑的硫化锡（SnS）多孔膜（PF）被制成铝离子电池中的柔性阴极材料，可提供406 mAh g（-1）的高比容量。每个循环的容量衰减率为0.03％，表明具有良好的稳定性。自支撑的柔性SnS膜在动态和静态弯曲测试中也显示出出色的电化学性能和稳定性。原位透射电子显微镜表明，SnS的多孔结构有利于最小化充放电过程中的体积膨胀。这导致改善的结构稳定性和优异的长期循环性。

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  • 来源
    《Advanced energy materials》 |2019年第2期|1802543.1-1802543.7|共7页
  • 作者

    Liang Kun; Ju Licheng; Koul Supriya; Kushima Akihiro; Yang Yang;

  • 作者单位

    Univ Cent Florida, NanoSci Technol Ctr, 4000 Cent Florida Blvd, Orlando, FL 32816 USA;

    Univ Cent Florida, NanoSci Technol Ctr, 4000 Cent Florida Blvd, Orlando, FL 32816 USA|Univ Cent Florida, Dept Mat Sci & Engn, 4000 Cent Florida Blvd, Orlando, FL 32816 USA;

    Univ Cent Florida, Dept Mat Sci & Engn, 4000 Cent Florida Blvd, Orlando, FL 32816 USA;

    Univ Cent Florida, Dept Mat Sci & Engn, 4000 Cent Florida Blvd, Orlando, FL 32816 USA|Univ Cent Florida, Adv Mat Proc & Anal Ctr, 4000 Cent Florida Blvd, Orlando, FL 32816 USA;

    Univ Cent Florida, NanoSci Technol Ctr, 4000 Cent Florida Blvd, Orlando, FL 32816 USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    aluminum-ion batteries; flexible; porous films; self-supported; tin sulfide;

    机译：铝离子电池;柔性;多孔膜;自支撑;硫化锡;

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