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首页> 外文期刊>Advanced energy materials >Going Beyond Lithium Hybrid Capacitors: Proposing a New High-Performing Sodium Hybrid Capacitor System for Next-Generation Hybrid Vehicles Made with Bio-Inspired Activated Carbon
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Going Beyond Lithium Hybrid Capacitors: Proposing a New High-Performing Sodium Hybrid Capacitor System for Next-Generation Hybrid Vehicles Made with Bio-Inspired Activated Carbon

机译：超越锂混合电容器：提出一种新的高性能混合电容器系统，用于采用生物启发活性炭制成的下一代混合动力车辆

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摘要

A novel sodium hybrid capacitor (NHC) is constructed with an intercalation-type sodium material [carbon coated-Na3V2(PO4)(3), C-NVP] and high surface area-activated carbon derived from an eco-friendly resource cinnamon sticks (CDCs) in an organic electrolyte. This novel NHC possesses a combination of high energy and high power density, along with remarkable electrochemical stability. In addition, the C-NVP/CDC system outperforms present, well-established lithium hybrid capacitor systems in all areas, and can thus be added to the list of candidates for future electric vehicles. A careful optimization of mass balance between electrode materials enables the C-NVP/CDC cell to exhibit extraordinary capacitance performance. This novel NHC produces an energy density of 118 Wh kg(-1) at a specific power of 95 W kg(-1) and retains an energy density of 60 Wh kg(-1) with high specific power of 850 W kg(-1). Furthermore, a discharge capacitance of 53 F g(-1) is obtained from the C-NVP/CDC cell at a 1 mA cm(-2) current density, along with 95% capacitance retention, even after 10 000 cycles. The sluggish kinetics of the Na ion battery system is successfully overcome by developing a stable, high-performing NHC system.
机译：一种新型杂交电容器（NHC）用插层型钠材料[碳涂层-NA3V2（PO4）（3），C-NVP]和来自环保资源肉桂棒的高表面积激活碳构成（ CDCS）在有机电解质中。该新型NHC具有高能量和高功率密度的组合，以及显着的电化学稳定性。此外，C-NVP / CDC系统优于所有领域的现实良好的锂混合电容器系统，因此可以添加到未来电动车辆的候选者列表中。仔细优化电极材料之间的质量平衡使C-NVP / CDC电池能够表现出非凡的电容性能。该新型NHC在95W kg（-1）的特定功率下产生118WH kg（-1）的能量密度，并保持60WH kg（-1）的能量密度，高功率为850 w kg（ - 1）。此外，即使在10 000次循环之后，在1 mA cm（-2）电流密度下，从C-NVP / CDC电池获得53f g（-1）的放电电容。通过开发稳定的高性能NHC系统，成功地克服了Na离子电池系统的缓慢动力学。

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  • 来源
    《Advanced energy materials》 |2016年第7期|1502199.1-1502199.9|共9页
  • 作者

    Thangavel Ranjith; Kaliyappan Karthikeyan; Kang Kisuk; Sun Xueliang; Lee Yun-Sung;

  • 作者单位

    Chonnam Natl Univ Fac Appl Chem Engn Kwangju 500757 South Korea;

    Univ Western Ontario Dept Mech & Mat Engn London ON N6A 5B9 Canada;

    Seoul Natl Univ Dept Mat Sci & Engn Seoul 151742 South Korea;

    Univ Western Ontario Dept Mech & Mat Engn London ON N6A 5B9 Canada;

    Chonnam Natl Univ Fac Appl Chem Engn Kwangju 500757 South Korea;

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