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首页> 外文期刊>Advanced Materials >A COF-Like N-Rich Conjugated Microporous Polytriphenylamine Cathode with Pseudocapacitive Anion Storage Behavior for High-Energy Aqueous Zinc Dual-Ion Batteries
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A COF-Like N-Rich Conjugated Microporous Polytriphenylamine Cathode with Pseudocapacitive Anion Storage Behavior for High-Energy Aqueous Zinc Dual-Ion Batteries

机译：一种COF样N-富含缀合的微孔聚螺膜胺阴极，具有用于高能锌双离子电池的假壳体阴离子储存行为

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摘要

Conducting polymers with good electron conductivity and rich redox functional groups are promising cathode candidates for constructing high-energy aqueous zinc batteries. However, the glaring flaw of active-site underutilization impairs their electrochemical performance. Herein, we report a poriferous polytriphenylamine conjugated microporous polymer (CMP) cathode capable of accommodating Cl- anions in a pseudocapative-dominated manner for energy storage. Its specific 3D, covalent-organic-framework-like conjugated network ensures high accessibility efficacy of N active sites (up to 83.2% at 0.5 A g(-1)) and distinct physicochemical stability (87.6% capacity retention after 1000 cycles) during repeated charging/discharging courses. Such a robust CMP electrode also leads to a zinc dual-ion battery device with a high energy density of 236 W h kg(-1) and a maximum power density of 6.8 kW kg(-1), substantially surpassing most recently reported organic-based zinc batteries. This study paves the way for the rational design of advanced CMP-based organic cathodes for high-energy devices.
机译：具有良好电子电导率和富氧化还原官能团的导电聚合物是用于构建高能锌电池的阴极候选。然而，有效部位未充分利用的耀眼缺陷损害了它们的电化学性能。在此，我们报告了能够容纳以伪拍摄的占稳定性的方式容纳固定的渗透的散氏多苯胺胺缀合的微孔聚合物（CMP）阴极。其特定的3D，共价 - 有机框架状的共轭网络确保了N活性位点的高可辅助效果（在0.5Ag（-1））中，并且在重复期间，不同的物理化学稳定性（1000次循环后87.6％的容量保留）充电/卸料课程。这种稳健的CMP电极还导致高能密度为236WH kg（-1）的锌双离子电池装置，最大功率密度为6.8kg kg（-1），基本上超过最近报告的有机物 - 基于锌电池。本研究为高能量装置的高级CMP有机阴极合理设计铺平了道路。

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  • 来源
    《Advanced Materials》 |2021年第34期|2101857.1-2101857.9|共9页
  • 作者

    Zhang Haozhe; Zhong Linfeng; Xie Jinhao; Yang Fan; Liu Xiaoqing; Lu Xihong;

  • 作者单位

    Sun Yat Sen Univ Sch Chem Key Lab Low Carbon Chem & Energy Conservat Guangd MOE Key Lab Bioinorgan & Synthet Chem Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Chem Key Lab Low Carbon Chem & Energy Conservat Guangd MOE Key Lab Bioinorgan & Synthet Chem Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Chem Key Lab Low Carbon Chem & Energy Conservat Guangd MOE Key Lab Bioinorgan & Synthet Chem Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Chem Key Lab Low Carbon Chem & Energy Conservat Guangd MOE Key Lab Bioinorgan & Synthet Chem Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Chem Key Lab Low Carbon Chem & Energy Conservat Guangd MOE Key Lab Bioinorgan & Synthet Chem Guangzhou 510275 Peoples R China;

    Sun Yat Sen Univ Sch Chem Key Lab Low Carbon Chem & Energy Conservat Guangd MOE Key Lab Bioinorgan & Synthet Chem Guangzhou 510275 Peoples R China|Wuyi Univ Sch Appl Phys & Mat Jiangmen 529020 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    aqueous zinc batteries; conjugated microporous polymers; high energy density; polytriphenylamine; pseudocapacitance;

    机译：锌电池水溶液;共轭微孔聚合物;高能量密度;聚螺旋胺;假偶像;

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