新疆时时彩-新疆时时彩开奖直播结果历史记录Touou
近期界庭篮详衡,我院青年教师魏涛等的研究成果在《IONICS》(IF=2.347)上发表
发布时间娜栋: 2019-02-22 浏览次数份危: 13

       近期愤董惨喊稗,我院青年教师魏涛等的研究成果“Recycling of waste plastics and scalable preparation of Si/CNF/C composite as anode material for lithium-ion batteries”在《IONICS》(IF=2.347)上发表瘸梗般娩。

论文简介如下迫休都和狡:

    An economical and practical strategy is proposed for preparation of silicon/carbon nanofibers/carbon (Si/CNF/C) composite for lithium-ion batteries using self-prepared micron-sized silicon and waste high-density polyethylene (HDPE) as raw materials. The obtained Si/CNF/C composite is characterized by SEM, TGA, and XRD, as well as electrochemical characterization. Through a simple pyrolysis approach, pyrolyzed carbon and carbon nanofibers are obtained which acts as a carbon-conductive network and restrains the volumetric expansion of Si during Li-ion insertion/deinsertion processes. The obtained Si/CNF/C composite possesses high initial coulombic efficiency of 82.2% and a steady reversible capacity of 937 mAh g?1 (1685 mAh g?1 based on Si) after 100 cycles at a current density of 100 mA g?1. The strategy proposed here provides a novel way to synthesize high value-added nanocarbon materials for LIBs by reutilization of waste plastics.

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