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The Electrochemical Properties of Porous Carbon Derived from the Prawn as Anode for Lithium Ion Batteries

机译:虾仁阳极锂离子电池多孔碳的电化学性能

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Porous carbon materials derived from the prawn shell (PSC) and prawn meat (PMC) have been successfully fabricated by a simple “curing” method, followed by an annealing process. The PSC and PMC are well characterized by XRD, Raman, SEM and TEM. Electrochemical measurements reveal that PSC and PMC deliver high initial discharge/charge capacities of 1735/878 mAh g-1 and 1132/674 mAh g-1 at 100 mA g-1 and maintain charge capacity retention of 84.2% and 40.3% after 90 cycles, respectively. Moreover, the PSC exhibits a high reversible capacity of 300 mAh g-1 after 50 cycles at 1000 mA g-1. The outstanding electrochemical performance of PSC and PMC is attributed to the coherent interconnected porous structure and nitrogen doping, which is beneficial for fast penetration of electrolyte, rapid diffusion of Li+ and creation of numerous active sites for Li+ storage.
机译:虾壳(PSC)和虾肉(PMC)衍生的多孔碳材料已通过简单的“固化”方法并随后进行了退火工艺成功制造。通过XRD,拉曼,SEM和TEM可以很好地表征PSC和PMC。电化学测量表明,PSC和PMC在100 mA g-1时可提供1735/878 mAh g-1和1132/674 mAh g-1的高初始放电/充电容量,并在90次循环后保持充电容量保持率分别为84.2%和40.3% , 分别。此外,PSC在1000 mA g-1下循环50次后,具有300 mAh g-1的高可逆容量。 PSC和PMC出色的电化学性能归因于相干互连的多孔结构和氮掺杂,这有利于电解质的快速渗透,Li +的快速扩散以及许多Li +储存活性位的产生。

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