阳极
储能
碳化
碳纤维
法拉第效率
纳米技术
化学
材料科学
复合材料
吸附
复合数
电极
物理化学
有机化学
功率(物理)
物理
量子力学
作者
Yuyang Gao,Zhidong Hou,Mingwei Jiang,Da Lei,Xiang Zhang,Yu Zhang,Jian‐Gan Wang
标识
DOI:10.1016/j.jelechem.2023.117525
摘要
The massive discard of spent masks during the COVID-19 pandemic imposes great environmental anxiety to the human society, which calls for a reliable and sustainable outlet to mitigate this issue. In this work, we demonstrate a green design strategy of recycling the spent masks to fabricate hard carbon fabrics toward high-efficient sodium energy storage. After a simple carbonization treatment, flexible hard carbon fabrics composed of interwoven microtubular fibers are obtained. When serving as binder-free anodes of sodium-ion batteries, a large Na-ion storage capacity of 280 mAh g−1 is achieved for the optimized sample. More impressively, the flexible anode exhibits an initial coulombic efficiency of as high as 86% and excellent rate/cycling performance. The real-life practice of the flexible hard carbon is realized in the full-cells. The present study affords an enlightening approach for the recycling fabrication of high value-added hard carbon materials from the spent masks for advanced sodium energy storage.
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