设计和制备具有高效储能、低成本、环境友好的电极对钠离子电池的发展有重要的科学意义和应用价值。然而，传统的电池因电极材料尺寸较大、与集流体接触不紧密等原因，不利于电子传输和电解液浸润，严重制约了钠离子电池容量和倍率等性能的发挥。因此，必须借助新方法、新途径开发新型的电极以提高钠离子电池的性能。本项目在纳米技术的基础上，采用水热法和强磁场技术协同作用，在金属集流体上生长过渡金属氧化物纳米结构一体化电极。通过调节磁感应强度，控制水热条件下纳米材料的形貌与生长取向，确定强磁场对纳米电极的形核、生长和最终形貌的影响，明确强磁场在纳米材料结构演化以及调控形貌和结构的作用机理。通过不同形貌、取向的电极材料在钠离子电池中的性能，揭示不同形貌和取向材料的电化学反应机制。本项目将力求探索出一条设计和构筑高性能低成本纳米结构一体化电极的新途径，为提高钠离子电池的性能，旨在促进其研究和开发提供科学依据。

The design and fabrication of high energy, low cost and environmentally friendly electrodes has great scientific significance and practical value for the development of (Na-ion batteries) NIBs. However, due to the large size of the electrode materials and electrode materials not closely contact with current collector in traditional batteries, which seriously restrict their capacity and rate capability in NIBs. Therefore, new methods or new strategy must be developing to improve the performance of NIBs. This project is based on nanotechnology, aim to fabricate an integration electrode which is obtained by transition metal oxide nanomaterials grown directly on a flexible current collector by the synergistic effect of hydrothermal method and high magnetic field technology, can enhance the stability of the materials structure and morphology. By adjusting the magnetic field strength to control the morphology and growth orientation of nanomaterials in hydrothermal conditions, and further determine the effect of high magnetic field on nucleation and growth of nanomaterials. Ensure the regulation of high magnetic field effect of on morphology and structure evolution and reveal the electrochemical reaction mechanism of different morphology and different grown orientation electrode in NIBs by the difference performance. The success of this project will open a new avenue to design and fabricate high performance nanostructure integrated electrode for NIBs and promoting their research and development.