五氧化二钒/碳纳米复合材料在超级电容器中的应用

Application of vanadium pentoxide/carbon nanocomposites in supercapacitors

五氧化二钒(V2O5)作为一种有广阔前景的电极材料,具有储量丰富、无毒、高电容电位等优点,通过V2O5纳米化、复合化等策略可实现材料性能的最优化。本文综述了V2O5/C纳米复合材料在超级电容器储能器件领域的最新研究进展,总结了V2O5/C纳米复合材料的制备方法及其对形貌和电化学性能的影响规律,讨论了组分优化、增加有效比表面积、杂原子掺杂、构建三元纳米复合材料等电化学性能提升策略。V2O5/C纳米复合材料以其独特的结构及优异的效能克服了单一电极材料的局限性,具有较强的实际应用潜力。最后,提出了V2O5/C电极材料在性能提升、机理探索和规模化生产等方面面临的问题,对电化学储能技术的未来发展趋势做出了展望,即开发高性能、智能化的新型复合材料及储能器件,为构建高效、安全的电化学储能体系提供理论和实践支持。

As a promising electrode material,vanadium pentoxide(V2O5)has the advantages of abundant reserves,non-toxicity and high capacitance potential.The material properties can be optimized through the strategies of V2O5 nanosizing and compounding.This paper reviewed the recent applications of V2O5/C nanocomposites in the fields of supercapacitor energy storage.The preparation methods of V2O5/C nanocomposites with different dimensions,the influence on morphology and electrochemical performance were summarized.Strategies for enhancing the electrochemical properties were discussed via the component optimization,increasing effective specific surface area,heteroatom doping and constructing ternary nanocomposites.V2O5/C nanocomposites overcame the limitations of single electrode materials with their unique structure and excellent efficiency,which had strong practical application potential.Finally,the problems faced by V2O5/C electrode materials in terms of performance improvement,mechanism exploration and large-scale production were proposed,and the future development trend of electrochemical energy storage technology were presented,that is,the development of high-performance and intelligent new composite materials or energy storage devices,which provided theoretical and practical support for the construction of efficient and safe electrochemical energy storage systems.