氮掺杂有序介孔碳布集流体的可控制备及其在柔性储能器件中的应用

Wearable and flexible is an important trend in the development of portable electronic devices. However, one of the biggest challenges in the development of the flexible electronic technology is finding the suitable flexible energy storage devices with high energy density, good mechanical property and long-term cycling stability. In this project, by using silk fabrics as the substrates, the applicant plans to fabricate nitrogen-doped ordered-mesoporous carbon fabrics (NOMFs) via the multi-constituent co-assembly techniques. Owing to their high flexibility, high conductivity and high loading capacity for active components, the NOMFs are ideal candidates for the current-collectors in flexible energy storage devices such as supercapacitors and lithium ion batteries. Based on the controllable preparation of NOMFs with unique mesoscopic structures and compositions, the applicant plans to load the active materials on the surface of NOMFs directly by in-situ growth method to obtain the integrated flexible electrodes and assemble the corresponding flexible energy storage devices with the obtained electrodes. The performance of NOMFs as a new type of current collectors in flexible energy storage devices will be systematically investigated and evaluated by means of experimental investigation and theoretical analysis. Flexible energy devices with high performances are expected to be obtained according to the clarification of electrochemical mechanism of NOMFs based flexible electrodes, which will promote the development of flexible electronics and wearable devices.

可穿戴和柔性化是便携电子设备发展的重要趋势，而柔性电子技术当前所面临的最大挑战之一是获得能够与之匹配的具有高能量密度、良好机械性能和长循环稳定性的柔性储能器件。针对这一点，申请人计划在本项目中以蚕丝织物为基底，利用多组分共组装技术制备兼具高柔韧性、高导电性和高活性物质负载能力的氮掺杂有序介孔碳布作为柔性超级电容器和锂离子电池等储能器件的集流体。在实现氮掺杂有序介孔碳布可控制备的基础上，申请人计划结合其介观结构和组成方面的特点通过原位生长的方法在其表面负载活性物质以获得一体化柔性电极，并组装成的柔性储能器件。通过实验研究和理论分析相结合的方法，对氮掺杂有序介孔碳布作为新型集流体在柔性储能器件中的性能进行系统表征和评价，在明晰储能机理的基础上优化设计以获得高性能柔性储能器件，从而推动柔性电子和可穿戴器件的发展和进步。

可穿戴和柔性化是便携电子设备发展的重要趋势，而柔性电子技术当前所面临的最大挑战之一是获得能够与之匹配的柔性储能器件为其提供电能。针对这一点，本课题组在本项目中通过使用蚕丝织物为基底，利用多组分共组装技术制备了兼具高柔韧性、高导电性和高活性物质负载能力的氮掺杂有序介孔碳布，并将其用作柔性储能器件的集流体。在优化制备条件的同时本课题组对共组装和热解碳化条件对所得氮掺杂介孔碳布的杂原子含量和孔结构的影响。在此基础上，本课题组通过溶液方法在碳布表面负载了具有电化学活性的有机分子，制备了一体化柔性电极，并组装为锂离子电池和超级电容器等柔性储能器件。通过实验研究和理论分析相结合的方法，本课题组对氮掺杂有序介孔碳布作为集流体在柔性储能器件中的性能进行了系统表征和评价，相关成果对于柔性和可穿戴电子器件的发展具有重要意义。