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首页> 外文期刊>Advanced energy materials >A Dual-Insertion Type Sodium-Ion Full Cell Based on High-Quality Ternary-Metal Prussian Blue Analogs
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A Dual-Insertion Type Sodium-Ion Full Cell Based on High-Quality Ternary-Metal Prussian Blue Analogs

机译：基于高质量三元金属普鲁士蓝类似物的双插入式钠离子全电池

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摘要

Prussian blue analogs (PBAs) are especially investigated as superior cathodes for sodium-ion batteries (SIBs) due to high theoretical capacity (approximate to 170 mA h g(-1)) with 2-Na storage and low cost. However, PBAs suffer poor cyclability due to irreversible phase transition in deep charge/discharge states. PBAs also suffer low crystallinity, with considerable [Fe(CN)(6)] vacancies, and coordinated water in crystal frameworks. Presently, a new chelating agent/surfactant coassisted crystallization method is developed to prepare high-quality (HQ) ternary-metal NixCo1-x[Fe(CN)(6)] PBAs. By introducing inactive metal Ni to suppress capacity fading caused by excessive lattice distortion, these PBAs have tunable limits on depth of charge/discharge. HQ-NixCo1-x[Fe(CN)(6)] (x = 0.3) demonstrates the best reversible Na-storage behavior with a specific capacity of approximate to 145 mA h g(-1) and a remarkably improved cycle performance, with approximate to 90% capacity retention over 600 cycles at 5 C. Furthermore, a dual-insertion full cell on the cathode and NaTi2(PO4)(3) anode delivers reversible capacity of approximate to 110 mA h g(-1) at a current rate of 1.0 C without capacity fading over 300 cycles, showing promise as a high-performance SIB for large-scale energy-storage systems. The ultrastable cyclability achieved in the lab and explained herein is far beyond that of any previously reported PBA-based full cells.
机译：普鲁士蓝类似物（PBA）作为钠离子电池（SIB）的优良阴极，由于其理论容量高（约170 mA h g（-1）），具有2-Na存储和低成本而被特别研究。但是，由于深充电/放电状态下不可逆的相变，PBA的可循环性较差。 PBA还具有较低的结晶度，具有相当大的[Fe（CN）（6）]空位，并且在晶体骨架中配位有水。目前，开发了一种新的螯合剂/表面活性剂辅助结晶方法，以制备高质量（HQ）三元金属NixCo1-x [Fe（CN）（6）] PBA。通过引入惰性金属Ni来抑制由于过度晶格畸变引起的电容衰减，这些PBA在充电/放电深度上具有可调的极限。 HQ-NixCo1-x [Fe（CN）（6）]（x = 0.3）表现出最佳的可逆Na存储行为，比容量约为145 mA hg（-1），循环性能显着提高，在5 C下经过600次循环可达到90％的容量保持率。此外，在阴极和NaTi2（PO4）（3）阳极上的双插入全电池在电流速率为110 mA hg（-1）时可提供约110 mA hg（-1）的可逆容量。 1.0 C，容量不超过300个循环，这表明它是用于大规模储能系统的高性能SIB。在实验室中实现并在此说明的超稳定循环能力远远超出了以前报道的任何基于PBA的全细胞。

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  • 来源
    《Advanced energy materials》 |2018年第11期|1702856.1-1702856.9|共9页
  • 作者

    Peng Jian; Wang Jinsong; Yi Haocong; Hu WenJing; Yu Yonghui; Yin Jinwen; Shen Yi; Liu Yi; Luo Jiahuan; Xu Yue; Wei Peng; Li Yuyu; Jin Yu; Ding Yu; Miao Ling; Jiang Jianjun; Han Jiantao; Huang Yunhui;

  • 作者单位

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Hubei Engn Univ, Coll Chem & Mat Sci, Xiaogan 432000, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

    Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    dual insertion; Prussian blue; sodium cobalt nickel hexacyanoferrate; sodium-ion batteries; ternary metals;

    机译：双插入;普鲁士蓝;六氰合铁氰化钴镍钠;钠离子电池;三元金属;

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