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High-Energy-Density Foldable Battery Enabled by Zigzag-Like Design

机译：通过Zigzag的设计使能高能量密度可折叠电池

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摘要

Flexible batteries, seamlessly compatible with flexible and wearable electronics, attract a great deal of research attention. Current designs of flexible batteries struggle to meet one of the most extreme yet common deformation scenarios in practice, folding, while retaining high energy density. Inspired by origami folding, a novel strategy to fabricate zigzag-like lithium ion batteries with superior foldability is proposed. The battery structure could approach zero-gap between two adjacent energy storage segments, achieving an energy density that is 96.4% of that in a conventional stacking cell. A foldable battery thus fabricated demonstrates an energy density of 275 Wh L-1 and is resilient to fatigue over 45 000 dynamic cycles with a folding angle of 130 degrees, while retaining stable electrochemical performance. Additionally, the power stability and resilience to nail shorting of the foldable battery are also examined.
机译：灵活的电池，与灵活和可穿戴电子产品无缝兼容，吸引了大量的研究关注。电流设计的灵活电池在实践中遇到最极端但常见的变形情景之一，折叠，同时保持高能量密度。通过折纸折叠的启发，提出了一种制造具有优异可折叠性的锯齿状锂离子电池的新策略。电池结构可以接近两个相邻的能量存储段之间的零间隙，实现在传统堆叠单元中的96.4％的能量密度。这样制造的可折叠电池证明了275WH L-1的能量密度，并且具有超过45000个动态循环的疲劳，折叠角度为130度，同时保持稳定的电化学性能。另外，还检查了对折叠电池缩短的钉钉的功率稳定性和弹性。

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  • 来源
    《Advanced energy materials》 |2019年第4期|1802998.1-1802998.7|共7页
  • 作者

    Liao Xiangbiao; Shi Changmin; Wang Tianyang; Qie Boyu; Chen Youlong; Yang Pengfei; Cheng Qian; Zhai Haowei; Chen Meijie; Wang Xue; Chen Xi; Yang Yuan;

  • 作者单位

    Columbia Univ Dept Earth & Environm Engn Yonghong Zhang Family Ctr Adv Mat Energy & Enviro New York NY 10025 USA;

    Columbia Univ Dept Appl Phys & Appl Math Program Mat Sci & Engn New York NY 10025 USA;

    Columbia Univ Dept Appl Phys & Appl Math Program Mat Sci & Engn New York NY 10025 USA;

    Columbia Univ Dept Appl Phys & Appl Math Program Mat Sci & Engn New York NY 10025 USA;

    Xi An Jiao Tong Univ Sch Aerosp Xian 710049 Shaanxi Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Xian 710049 Shaanxi Peoples R China;

    Columbia Univ Dept Appl Phys & Appl Math Program Mat Sci & Engn New York NY 10025 USA;

    Columbia Univ Dept Appl Phys & Appl Math Program Mat Sci & Engn New York NY 10025 USA;

    Columbia Univ Dept Appl Phys & Appl Math Program Mat Sci & Engn New York NY 10025 USA|Harbin Inst Technol Sch Energy Sci & Engn Harbin 150001 Heilongjiang Peoples R China;

    Columbia Univ Dept Appl Phys & Appl Math Program Mat Sci & Engn New York NY 10025 USA|Harbin Inst Technol Sch Astronaut Harbin 150001 Heilongjiang Peoples R China;

    Columbia Univ Dept Earth & Environm Engn Yonghong Zhang Family Ctr Adv Mat Energy & Enviro New York NY 10025 USA;

    Columbia Univ Dept Appl Phys & Appl Math Program Mat Sci & Engn New York NY 10025 USA;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    energy density; flexible; foldable; lithium ion batteries; nonflammable;

    机译：能量密度;柔性;可折叠;锂离子电池;不易燃;

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