以橙子皮为原材料,通过高温热解制备出具有分级多孔结构的生物遗态碳材料,并以这种碳材料作为锂离子电池负极考察其电化学性能.研究表明,橙子皮基碳为无定型碳材料,从SEM照片可以看出,其具有相互连通的蜂窝状孔结构,孔径约在1-4μm.BET测得的比表面积约为52 m2·g-1.以橙子皮碳为原材料制备锂离子电池负极,在电流密度100 mAg-1下,具有832 mAhg-1、393 mAhg-1的首次放充电比容量,首次循环库伦效率为47.2%.200次循环后比容量仍保持在343 mAhg-1,库伦效率在95%以上,在2 Ag-1的电流密度下仍具有149 mAhg-1的比容量.%The biomorphic hierarchical porous carbon was prepared from orange peels by high temperature pyrolysis, and its electrochemical perpromance was measured as anode for lithium ion battery. The results suggest that the samples prepared from orange peels were amorphous carbon, and possessed connected alveolate structures and specific surface area of 52 m2·g-1. The biomorphic hierarchical carbon was used as an anode for lithium ion batteries and delivered an initial specific discharge and charge capacities of 832 and 393 mAhg-1 at 100 mAg-1 with a coulombic efficiency of 47.2%. After 200 cycles the carbon anode retained a reversible capacity of 343 mAhg-1 with a coulombic efficiency above 95%. The high reversible capacity of 149 mAhg-1 was observed at the current density of 2 Ag-1, which was ascribed to the hierarchical porous structures of biomorphic carbon.
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