中国造纸2025，Vol.44Issue(9)：57-64,8.DOI:10.11980/j.issn.0254-508X.2025.09.008
废旧隔膜衍生碳对回收石墨锂电性能的协同提升研究
Waste-Separator-Derived Carbon and Its Synergistic Enhancement of Recycled Graphite for Lithium-Ion Batteries
摘要
Abstract
This study proposed an efficient strategy for upgrading polyolefin separators obtained from the disassembly of scrap lithium-ion bat-teries into high-value carbon materials.The results indicated that the separator-derived carbon exhibits a layered structure with the coexis-tence of ordered and disordered regions.When used as an anode material,it achieved a specific capacity of 695 mAh/g at a current density of 100 mA/g,exceeding twice that of recycled graphite.Although the conversion efficiency and product yield of the carbonization process still need optimization,its exceptional electrochemical lithium storage performance significantly enhanced the capacity of recycled graphite even with a small amount of addition.The composite electrode based on recycled graphite and separator-derived carbon demonstrates superi-or lithium-ion diffusion characteristics and capacity stability:after 1 200 cycles at a 0.5 C rate,the composite material maintained a stable discharge capacity of 380 mAh/g,while the single recycled graphite only achieved 285 mAh/g.关键词
废旧隔膜衍生碳/锂离子电池回收/回收石墨/复合电极Key words
waste separator-derived carbon/lithium-ion battery recycling/recycled graphite/composite electrode分类
轻工纺织引用本文复制引用
乔华丽,李玉丹..废旧隔膜衍生碳对回收石墨锂电性能的协同提升研究[J].中国造纸,2025,44(9):57-64,8.基金项目
河南省教育厅教学质量工程项目(豫教[2022]38693) （豫教[2022]38693）
教育部高等教育司协同育人项目(220902557050855). （220902557050855）
