A flexible rechargeable zinc-ion wire-shaped battery with shape memory function

文献情報

出版日 2018-04-05

DOI 10.1039/C8TA01172A

インパクトファクター 12.732

著者

Zifeng Wang, Zhaoheng Ruan, Zhuoxin Liu, Yukun Wang, Zijie Tang, Hongfei Li, Minshen Zhu, Tak Fuk Hung, Jun Liu, Zicong Shi, Chunyi Zhi

原文を見る

要旨

The ever-growing development of flexible and wearable electronics boosts the research on flexible and wearable energy storage devices. However, these devices are susceptible to mechanical deformation, leading to inevitable damage and degradation of performances. Herein, we report the fabrication of a smart wire-shaped flexible and rechargeable Zn-ion battery with shape memory function, which enables the battery to restore the shape and energy storage capability against mechanical deformation by the temperature triggered shape memory effect. As an energy storage device, the flexible wire battery delivered a specific discharge capacity of 143.2 mA h g−1 at 1C in aqueous electrolyte and a significantly enhanced cycle life due to the polypyrrole coating on the MnO2 nanocrystallites. Moreover, the performance was well-retained in a polymer gel electrolyte, delivering a specific discharge capacity of 135.2 mA h g−1 at 1C and long cycling stability over 1000 cycles, which could be attributed to the enhanced ionic conductivity and water retention properties offered by the gelatin–borax-based polymeric gel. Additionally, the intriguing mechanical properties of the Nitinol wire endowed the yarn battery with high flexibility upon bending, and it could recover from the deformation upon immersion in 45 °C water multiple times while preserving the electrochemical performances.

掲載誌

Journal of Materials Chemistry A

CiteScore: 19.5

自己引用率: 4.7%

年間論文数: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment

A flexible rechargeable zinc-ion wire-shaped battery with shape memory function

文献情報

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掲載誌

Journal of Materials Chemistry A

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