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All‐MXene Cotton‐Based Supercapacitor‐Powered Human Body Thermal Management System
ChemElectroChem ( IF 3.5 ) Pub Date : 2020-12-18 , DOI: 10.1002/celc.202001536 Jianmin Li 1 , Jianmei Chen 2 , Hao Wang 3 , Xu Xiao 1
ChemElectroChem ( IF 3.5 ) Pub Date : 2020-12-18 , DOI: 10.1002/celc.202001536 Jianmin Li 1 , Jianmei Chen 2 , Hao Wang 3 , Xu Xiao 1
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Personal body thermal management (PBTM) has shown great potential in the application of artificial skin, smart clothing, and health care for the rapidly developed flexible electronics and “Internet of Things”. However, the heating efficiencies of the previously reported PBTM systems are relatively low with low response rate and high driving voltage, which are not satisfying for wearable devices. Here, we report a MXene‐coated cotton fabric (MCF)‐based PBTM system, which shows good water vapor permeability, air permeability, wear resistance, and wash stability. The optimal MCF shows high electron conductivity of 197 mS cm−2 and high heating efficiency, which could be heated up to 100 °C within 10 s under the low applied potential of 3 V. By applying a low voltage of 1.5 V, the MCF exhibited a high temperature of 45 °C, meeting the requirement of human body. In addition, serving as the electrode material of supercapacitors, the MCF exhibits high areal specific capacitance of 208 mF cm−2 at a scan rate of 5 mV s−1. The symmetric supercapacitor device could provide a high energy density of 2 μWh cm−2 and power density of 5.3 mW cm−2. Using the MCF‐based symmetric supercapacitor as the power source, the MCF could be heated and employed as a supercapacitor‐powered PBTM system, which indicates its significant potential for the application of wearable PBTM and beyond.
中文翻译：
全MXene棉基超级电容器供电的人体热管理系统
人体热管理（PBTM）在快速发展的柔性电子产品和“物联网”的人造皮肤，智能服装和医疗保健中已显示出巨大的潜力。但是，先前报道的PBTM系统的加热效率相对较低，响应速度低且驱动电压高，这对于可穿戴设备并不令人满意。在这里，我们报告了一种基于MXene涂层的棉织物（MCF）的PBTM系统，该系统显示出良好的水蒸气渗透性，透气性，耐磨性和洗涤稳定性。最佳MCF显示197 mS cm -2的高电子电导率高的加热效率，可以在3 V的低施加电势下在10 s内加热到100°C。通过施加1.5 V的低电压，MCF表现出45°C的高温，满足了人体。另外，作为超级电容器的电极材料，MCF在5mV s -1的扫描速率下显示出208mF cm -2的高面积比电容。对称超级电容器设备可以提供2μWhcm -2的高能量密度和5.3 mW cm -2的功率密度。使用基于MCF的对称超级电容器作为电源，可以加热MCF并将其用作超级电容器供电的PBTM系统，这表明其在可穿戴PBTM及其以后的应用中具有巨大的潜力。
更新日期：2021-02-12
中文翻译：
全MXene棉基超级电容器供电的人体热管理系统
人体热管理（PBTM）在快速发展的柔性电子产品和“物联网”的人造皮肤，智能服装和医疗保健中已显示出巨大的潜力。但是，先前报道的PBTM系统的加热效率相对较低，响应速度低且驱动电压高，这对于可穿戴设备并不令人满意。在这里，我们报告了一种基于MXene涂层的棉织物（MCF）的PBTM系统，该系统显示出良好的水蒸气渗透性，透气性，耐磨性和洗涤稳定性。最佳MCF显示197 mS cm -2的高电子电导率高的加热效率，可以在3 V的低施加电势下在10 s内加热到100°C。通过施加1.5 V的低电压，MCF表现出45°C的高温，满足了人体。另外，作为超级电容器的电极材料，MCF在5mV s -1的扫描速率下显示出208mF cm -2的高面积比电容。对称超级电容器设备可以提供2μWhcm -2的高能量密度和5.3 mW cm -2的功率密度。使用基于MCF的对称超级电容器作为电源，可以加热MCF并将其用作超级电容器供电的PBTM系统，这表明其在可穿戴PBTM及其以后的应用中具有巨大的潜力。
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