针对非对称线状超级电容器存在的高比容量纤维电极制备复杂，正负电极的活性质量太少难以精确匹配以及复杂导线联结导致串并联器件可靠性低等问题，项目申请人提出了“自顶向下”制备高性能非对称线状超级电容器的思路，利用“刀切”技术将基于V2O5/碳纳米管（CNT）//石墨烯的“二维”平板全固态非对称超级电容器切割成“一维”线状全固态非对称超级电容器，一次性解决制备非对称线状超级电容器中的三个难题。在此基础上，为构造高能量密度和形变稳定的非对称超级电容器，拟改变V2O5的形貌和比例，探索V2O5/CNT自支撑电极性能调控的影响因素与机制；调控正负电极的质量比，揭示其对非对称超级电容器电化学性能的影响；考察静态/动态形变过程中线状超级电容器电化学稳定性，总结影响器件形变稳定性的因素。该项目的实施将有助于设计和制备高性能线状全固态非对称电容器，对构建新一代高性能可穿戴柔性储能器件提供重要参考。

A “top-down” idea is proposed to solve three difficulties with obtaining high performance asymmetric fiber supercapacitors: complex fabrication process of high specific capacitance fiber electrodes, hard to balance the charge quantity of positive and negative electrodes because of small mass loading, and less reliability induced by complex serial and parallel wire connection of devices. All these three problems can be facilely solved by a novel slicing method, through which a two dimensional tandem V2O5/carbon nanotube//grapheme supercapacitor is directly sliced into one dimensional asymmetric fiber supercapacitors. On the basis of this method, the electrochemical and mechanical performance of asymmetric fiber supercapacitors is to be enhanced by incorporation of V2O5 with different morphologies and mass ratios into carbon nanotube and exploring the influence factors and mechanism of performance in the V2O5/carbon nanotube film; tuning the mass ratio between the positive and negative electrodes and studying its relationship with the electrochemical performance of asymmetric fiber devices; investigating the stability of fiber device under static/dynamic deformation and summarizing the influences on the bending stability of fiber devices. This work is supposed to be beneficial for design and fabrication of high performance fiber supercapacitors and provides an important reference for building next-generation high performance wearable devices.