如何将纳米材料的电致变色性能与电化学储能性能有机结合，制备高性能、多功能电极材料，是当前能源材料及其器件智能化的研究热点与难点。本项目拟利用外界环境刺激，诱导五氧化二钒的成核与生长，达到五氧化二钒的结构多级化与构筑单元多元化的精确调控合成。实现超级电容器的高储能性能，与快速响应的电致变色智能特性的有机结合。主要包括：（1）金属盐离子强度调控五氧化二钒前驱物的消溶与晶粒表面自由能，实现其纳米晶体的取向性再生长与相转变，形成不同于传统的百分百产出的室温自诱导反应新模式；（2）利用温度和压力场协同刺激，诱导五氧化二钒纳米晶粒的相转变、特定晶面趋向生长与晶体自组装，实现同一种配方不同纳米晶体产出，以及结构多级化的精确调控的百分百高效合成新手段。在此基础上，本项目还将结合五氧化二钒稳定、可逆的电致变色特性与电化学储能性能，开发一系列高性能、功能化、智能型储能器件。

Fabrication of high-performance and multifunctional electrode materials that effectively combined their electrochromic properties with electrochemical energy storage properties is one of the hottest topics and a scientific challenge in new energy materials and smart devices. In this project, a series of synthetic strategies have been developed to synthesize various vanadium pentoxide (V2O5) architectures, which are constructed with different building blocks by controlling the nucleation and growth of V2O5 via external stimulation. High-energy storage performance and quick electrochromic response of V2O5 as smart superapacitor electrodes will be realized. Research contents are as below: (1) A new self-stimulation synthetic strategy for the fabrication of V2O5 with 100% yield at room temperature has been developed, which is different from traditional approaches. Metal salt leads to the oriented re-growth of V2O5 nanocrystals coupling with the phase transition by controlling the V2O5 precursors dissolution and crystal surface energy. (2) A series of vanadium pentoxide with controllable structures and phases will be fabricated by using the same protocol, which offers a new approach for the synthesis of V2O5 with 100% yield. The phase transition, crystals growth along special facets and self-assembly of V2O5 will be well controlled by synergistic stimulations of reaction temperature and pressure. Additionally, the electrochemical energy storage performance of vanadium pentoxide coupling with its stable and reversible electrochromic properties will be studied, and a series of smartly multifunctional energy storage devices will be developed.