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首页> 外文期刊>Advanced Functional Materials >A Cost-Effective Mixed Matrix Polyethylene Porous Membrane for Long-Cycle High Power Density Alkaline Zinc-Based Flow Batteries
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A Cost-Effective Mixed Matrix Polyethylene Porous Membrane for Long-Cycle High Power Density Alkaline Zinc-Based Flow Batteries

机译：用于长周期高功率密度碱性锌基流动电池的高性价比混合基质聚乙烯多孔膜

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摘要

Alkaline zinc-based flow batteries (ZFBs) have received considerable interest for renewable energy storage due to their attractive features of low cost and high energy density. However, a membrane with high stability, high selectivity, and high ion conductivity is in urgent need. Herein, an economical mixed matrix membrane with highly anti-alkali microporous hollow spheres (denoted as DM-HM) is developed in this work. With excellent chemical and mechanical stability, DM-HM can achieve a high area capacity of 100 mA h cm(-2) for carbon felt (CF)||Zn@CF symmetrical flow battery, and thereby exhibits 500 stable cycles with a coulombic efficiency of 98.6% and an energy efficiency of 88.3% at 80 mA cm(-2) for alkaline zinc-iron flow battery. Additionally, with 44 wt% of hollow spheres inside matrix, DM-HM can dramatically shorten the ion transport pathway and results in a very high power density battery. A kilowatt stack assembled with DM-HM shows a very impressive performance, further confirming the practicability of this scalable mixed matrix membrane for alkaline ZFBs.
机译：碱性锌基液流电池（ZFB）由于具有低成本和高能量密度的诱人特性，已经引起了可再生能源存储的极大兴趣。然而，迫切需要具有高稳定性，高选择性和高离子传导性的膜。在此，开发了一种具有高度抗碱性的微孔空心球（称为DM-HM）的经济的混合基质膜。 DM-HM具有优异的化学和机械稳定性，可用于碳毡（CF）|| Zn @ CF对称液流电池，具有100 mA h cm（-2）的高面积容量，从而以库伦效率显示500个稳定循环碱性锌铁液流电池在80 mA cm（-2）时为98.6％的能量效率为88.3％。此外，由于基质内部有44重量％的空心球，DM-HM可以大大缩短离子传输路径，从而产生功率密度非常高的电池。与DM-HM组装在一起的千瓦烟囱显示出了非常出色的性能，进一步证实了这种可扩展的混合基质膜用于碱性ZFB的实用性。

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  • 来源
    《Advanced Functional Materials》 |2019年第29期|1901674.1-1901674.11|共11页
  • 作者

    Chang Nana; Yin Yanbin; Yue Meng; Yuan Zhizhang; Zhang Huamin; Lai Qinzhi; Li Xianfeng;

  • 作者单位

    Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China|Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China;

    Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China;

    Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China|Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China;

    Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China;

    Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China|Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China;

    Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China;

    Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China|Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    alkaline; anti-alkali hollow nanospheres; mixed matrix membranes; zinc-based flow batteries;

    机译：碱性;中空纳米球;混合基质膜;锌基液流电池;

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