电源技术2026，Vol.50Issue(1)：74-79,6.DOI:10.3969/j.issn.1002-087X.2026.01.009
干法NCM811极片的制备及性能研究
Preparation and performance study of NCM811 dry electrodes
章祺 1陈亮 2刘兆平3
作者信息
- 1. 宁波大学材料科学与化学工程学院,浙江宁波 315211||中国科学院宁波材料技术与工程研究所,浙江宁波 315201
- 2. 宁波大学材料科学与化学工程学院,浙江宁波 315211
- 3. 中国科学院宁波材料技术与工程研究所,浙江宁波 315201
- 折叠
摘要
Abstract
To achieve a fully solvent-free,drying-free and continuously producible dry electrode fabri-cation process,this study replaces the screw extruder with a turbine stirrer to successfully fabricate NCM811 dry electrodes.Systematic characterizations,including microstructural and electrochemical performance analyses,reveals that PTFE fiberization is more pronounced under directional shear forces,however,high-speed stirring induces agglomeration of the binder and conductive agent.This agglomeration reduces the degree of fiberization within the electrodes,necessitating a higher binder content that results in pore blockage and poor electrolyte wettability.Compared to wet electrodes,the dry electrodes exhibit significantly diminished rate capability;while wet electrodes can achieve a ca-pacity of 100 mAh/g at 2 C,the capacity of the dry electrodes is nearly zero under similar conditions.关键词
涡轮搅拌器/聚四氟乙烯/原纤化/孔隙堵塞/连续制备Key words
turbine agitator/polytetrafluoroethylene/fiberization/pore blockage/continuous prepa-ration分类
信息技术与安全科学引用本文复制引用
章祺,陈亮,刘兆平..干法NCM811极片的制备及性能研究[J].电源技术,2026,50(1):74-79,6.
