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High Voltage, Transition Metal Complex Enables Efficient Electrochemical Energy Storage in a Li-Ion Battery Full Cell

机译：高压过渡金属配合物可实现锂离子电池充满电的高效电化学能量存储

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摘要

Efficient energy storage systems impact profoundly the renewable energy future. The performance of current electrical energy storage technologies falls well short of requirements for using electrical energy efficiently in transportation, commercial, and residential applications. This paper explores the possibility by using transition-metal-based complexes as active materials in a Li-ion battery full cell that synergizes the concept of both lithium-ion batteries and redox flow batteries. A cathode made from transition metal complex, [Fe(bpy)(3)](BF4)(2), exhibits high discharge voltage approaching 4 V (vs Li/Li+). When coupled with a Li4Ti5O12 anode, the Li-ion full battery exhibits a cell voltage exceeding 2.2 V and decent cycling efficiencies with Coulombic efficiency and energy/voltage efficiencies above 99% and 92%/93%, respectively. Such a Li-ion battery full cell offers distinct features such as low cost and flexibility in molecular structure design. The result reveals a generic design route toward iron-based complexes as cathode materials with good electrochemical performances.
机译：高效的储能系统将对可再生能源的未来产生深远影响。当前的电能存储技术的性能远远低于在运输，商业和住宅应用中有效使用电能的要求。本文探讨了将过渡金属基配合物用作锂离子电池充满电芯中的活性材料的可能性，该电池可协同锂离子电池和氧化还原液流电池的概念。由过渡金属络合物[Fe（bpy）（3）]（BF4）（2）制成的阴极显示出接近4 V（vs Li / Li +）的高放电电压。当与Li4Ti5O12阳极耦合时，完整的锂离子电池表现出的电池电压超过2.2 V，并且循环效率也不错，库仑效率和能量/电压效率分别高于99％和92％/ 93％。这种锂离子电池充满电的电池具有独特的功能，例如低成本和分子结构设计的灵活性。结果揭示了通向铁基络合物作为具有良好电化学性能的阴极材料的通用设计路线。

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  • 来源
    《Advanced Functional Materials》 |2017年第4期|1604299.1-1604299.6|共6页
  • 作者

    Zheng Qi; Niu Zhihui; Ye Jing; Zhang Shun; Zhang Luwei; Li Lixing; Zhao Yu; Zhang Xiaohong;

  • 作者单位

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Renai Rd 199,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Renai Rd 199,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China;

    Soochow Univ, Testing & Anal Ctr, Renai Rd 199,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Renai Rd 199,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Renai Rd 199,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Renai Rd 199,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Renai Rd 199,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China;

    Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Renai Rd 199,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    energy storage; full cells; lithium-ion batteries; transition metal complexes;

    机译：能量存储;全电池;锂离子电池;过渡金属配合物;

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