基于木材制备各向异性孔道结构的厚层碳电极材料的探究

Research on the preparation of thick carbon electrode materials with anisotropic pore structure based on wood

合理设计厚层电极材料的结构是能源技术可持续的理想选择,但仍然存在很大的挑战。在此,我们受到天然木材中所固有的各向异性孔道结构的启发,通过分析研究不同原材料,从而筛选最具潜力的天然厚层电极前驱物。经研究发现,相比而言,椴木作为硬度适中的一种常见木材,具有发达的孔道结构,同时具有良好的电化学性能,在0.5A·g^-1的电流密度下,测得其比电容为51.6F·g^-1,电压降(IR drop)仅大于松木,说明基于椴木的碳电极材料电容性能最佳,可作为理想的厚层电极前驱物,进一步拓宽电极材料在能源存储领域的应用前景。

It is an ideal choice for energy technology to design the structure of thick layer electrode materials,but there are still great challenges.Here,we are inspired by the anisotropic pore structure inherent in natural wood,through the analysis of different raw materials,so as to screen the most potential natural thick layer electrode precursors.It was found that basswood,as a common wood with moderate hardness,has a well-developed porous structure and good telephone performance.At the current density of 0.5A·g^-1,its specific capacitance was measured as 51.6F·g^-1.The voltage drop(IR drop)is only larger than pine wood,which shows that the carbon electrode material based on basswood has the best capacitance performance.It can be used as an ideal thick layer electrode precursor to further expand the application prospects of electrode material in the energy storage field.