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首页> 外文期刊>Advanced Functional Materials >Finely Crafted 3D Electrodes for Dendrite-Free and High-Performance Flexible Fiber-Shaped Zn-Co Batteries
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Finely Crafted 3D Electrodes for Dendrite-Free and High-Performance Flexible Fiber-Shaped Zn-Co Batteries

机译：精细的3D电极，用于无树突和高性能柔性纤维状Zn-Co电池

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摘要

Rechargeable aqueous Zn-based batteries, benefiting from their good reliability, low cost, high energy/power densities, and ecofriendliness, show great potential in energy storage systems. However, the poor cycling performance due to the formation of Zn dendrites greatly hinders their practical applications. In this work, a trilayer 3D CC-ZnO@C-Zn anode is obtained by in situ growing ZIFs (zeolitic-imidazolate frameworks) derived ZnO@C core-shell nanorods on carbon cloth followed by Zn deposition, which exhibits excellent antidendrite performance. Using CC-ZnO@C-Zn as the anode and a branch-like Co(CO3)(0.5)(OH)(x)bold/bold0.11H(2)O@CoMoO4 (CC-CCH@CMO) as the cathode, a Zn-Co battery is rationally designed, displaying excellent energy/power densities (235 Wh kg(-1), 12.6 kW kg(-1)) and remarkable cycling performance (71.1% after 5000 cycles). Impressively, when using a gel electrolyte, a highly customizable, fiber-shaped flexible all-solid-state Zn-Co battery is assembled for the first time, which presents a high energy density of 4.6 mWh cm(-3), peak power density of 0.42 W cm(-3), and long durability (82% capacity retention after 1600 cycles) as well as excellent flexibility. The unique 3D electrode design in this study provides a novel approach to achieve high-performance Zn-based batteries, showing promising applications in flexible and portable energy-storage systems.%1802016.1-1802016.10
机译：可充电水性锌基电池受益于其良好的可靠性，低成本，高能量/功率密度和环保性，在储能系统中显示出巨大潜力。但是，由于形成Zn树枝状晶体而导致循环性能差，极大地阻碍了它们的实际应用。在这项工作中，通过在碳布上原位生长衍生于ZIFs（沸石-咪唑酸盐骨架）的ZnO @ C核壳纳米棒，然后进行Zn沉积，获得了具有优异的抗枝晶性能的三层3D CC-ZnO @ C-Zn阳极。使用CC-ZnO @ C-Zn作为阳极和分支状Co（CO3）（0.5）（OH）（x） 0.11H（2）O @ CoMoO4（CC-CCH @ CMO ）作为阴极，经过合理设计的Zn-Co电池具有出色的能量/功率密度（235 Wh kg（-1），12.6 kW kg（-1））和出色的循环性能（5000次循环后为71.1％）。令人印象深刻的是，使用凝胶电解质时，首次组装了高度可定制的纤维状柔性全固态Zn-Co电池，其高能量密度为4.6 mWh cm（-3），峰值功率密度具有0.42 W cm（-3）的耐用性和持久性（1600次循环后容量保持率达82％）以及出色的柔韧性。这项研究中独特的3D电极设计为实现高性能Zn基电池提供了一种新颖的方法，显示了在灵活和便携式储能系统中的有希望的应用。％1802016.1-1802016.10

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  • 来源
    《Advanced Functional Materials》 |2018年第32期|1802016.1-1802016.10|共10页
  • 作者

    Li Ming; Meng Jiashen; Li Qi; Huang Meng; Liu Xiong; Owusu Kwadwo Asare; Liu Ziang; Mai Liqiang;

  • 作者单位

    Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China;

    Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China;

    Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China;

    Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China;

    Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China;

    Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China;

    Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China;

    Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    dendrite-free batteries; fiber-shaped batteries; high capacity; long cylce life; Zn-Co batteries;

    机译：无枝晶电池;纤维状电池;高容量;使用寿命长;锌钴电池;

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