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首页> 外文期刊>Advanced Functional Materials >Multifunctional Electrode Design Consisting of 3D Porous Separator Modulated with Patterned Anode for High-Performance Dual-Ion Batteries
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Multifunctional Electrode Design Consisting of 3D Porous Separator Modulated with Patterned Anode for High-Performance Dual-Ion Batteries

机译：高性能双离子电池3D多孔阳极与图案化阳极组合而成的多功能电极设计

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摘要

Searching for low-cost and high-capacity electrode materials such as metal anodes is of important significance for the development of new generation rechargeable batteries. However, metal anodes always suffer from severe volume expansion/contraction during a repeated electrochemical alloying/dealloying process. In this study, a novel concept about modifying metal-anodes-based battery construction with a multifunctional electrode (ME) design is provided. The ME consists of a 3D porous separator that is modulated with a patterned aluminum anode, which simultaneously works as a current collector, anode material, and separator in a dual-ion battery (DIB). The 3D porous separator not only enables the ME to possess significantly improved electrolyte uptake and retention capabilities, but also acts as a protecting layer to restrict the surface pulverization of the Al anode. The ME-DIB displays remarkably enhanced cell performances, including excellent cycling stability with 92.4% capacity retention after 1000 cycles at a current density of 2 C, and superior rate performance with 80.7% capacity retention at 10 C.
机译：寻求低成本，高容量的电极材料（例如金属阳极）对于开发新一代可充电电池具有重要意义。然而，在重复的电化学合金化/脱合金过程中，金属阳极总是遭受严重的体积膨胀/收缩。在这项研究中，提供了有关使用多功能电极（ME）设计修改基于金属阳极的电池结构的新颖概念。 ME由3D多孔隔板组成，该隔板由带图案的铝阳极调制，同时用作双离子电池（DIB）中的集电器，阳极材料和隔板。 3D多孔隔膜不仅使ME具有显着改善的电解质吸收和保留能力，而且还充当了保护层，可限制Al阳极的表面粉化。 ME-DIB显示出显着增强的电池性能，包括出色的循环稳定性，在2 C的电流密度下1000次循环后具有92.4％的容量保持率，以及在10 C时具有80.7％容量保持率的优异速率性能。

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  • 来源
    《Advanced Functional Materials》 |2017年第39期|1703035.1-1703035.7|共7页
  • 作者

    Zhang Songquan; Wang Meng; Zhou Zhiming; Tang Yongbing;

  • 作者单位

    Chinese Acad Sci, Shenzhen Inst Adv Technol, Funct Thin Films Res Ctr, Shenzhen 518055, Peoples R China|Chongqing Univ Technol, Sch Mat Sci & Engn, Chongqing 400054, Peoples R China;

    Chinese Acad Sci, Shenzhen Inst Adv Technol, Funct Thin Films Res Ctr, Shenzhen 518055, Peoples R China;

    Chongqing Univ Technol, Sch Mat Sci & Engn, Chongqing 400054, Peoples R China;

    Chinese Acad Sci, Shenzhen Inst Adv Technol, Funct Thin Films Res Ctr, Shenzhen 518055, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    3D porous separators; aluminum; batteries; dual-ion batteries; metal anodes;

    机译：3D多孔隔板;铝;电池;双离子电池;金属阳极;

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