基于纳米复合集流器的全方位可拉伸高性能微电池

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-05-02 DOI:10.1021/acs.nanolett.5c01155

Sisi Li, Ting Fang, Qianying Lu, Weijie Qiu, Qiangbing Lu, Yong Lin, Chong Bai, Desheng Kong

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引用次数: 0

摘要

可拉伸电子设备正在改变下一代可穿戴设备和机器人，对兼容的能量存储设备产生了巨大的需求。微电池以其紧凑和扁平的设计而闻名，具有很大的前景，但往往面临低应变容限和单向拉伸性的限制。在这里，我们介绍了具有创新纳米复合集流器的全方位可拉伸锌-二氧化锰微电池。这些电流收集器由嵌在软弹性体中的蛇形银纳米线和碳纳米管纳米复合材料组成，可以有效地分散各个方向的应变。由此产生的微电池取得了令人印象深刻的性能，包括高容量（>1.5 mAh cm-2），出色的速率能力（高达5.0 mA cm-2），以及在全向/双轴应变下的稳健运行。此外，多个微电池单元成功地与无线充电电路和软LED阵列集成在一起，形成了一个无缝地符合身体运动的可穿戴系统。这项工作为可变形储能装置建立了一种新的设计框架，将优越的电化学性能与多向拉伸性相结合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Omnidirectionally Stretchable High-Performance Microbatteries Based on Nanocomposite Current Collectors

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Omnidirectionally Stretchable High-Performance Microbatteries Based on Nanocomposite Current Collectors

Stretchable electronics are transforming next-generation wearables and robotics, creating a significant demand for compatible energy storage devices. Microbatteries, known for their compact and flat design, hold great promise but often face limitations of low strain tolerance and unidirectional stretchability. Here, we introduce omnidirectionally stretchable Zn-MnO₂ microbatteries featuring innovative nanocomposite current collectors. These current collectors comprise serpentine-patterned silver nanowire and carbon nanotube nanocomposites embedded in a soft elastomer, which effectively dissipate strain across all directions. The resulting microbattery achieves impressive performance, including a high capacity (>1.5 mAh cm^–2), excellent rate capability (up to 5.0 mA cm^–2), and robust operation under omnidirectional/biaxial strains. Additionally, multiple microbattery cells are successfully integrated with a wireless charging circuit and a soft LED array, forming a wearable system that seamlessly conforms to body movements. This work establishes a novel design framework for deformable energy storage devices, merging superior electrochemical performance with multidirectional stretchability.

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.