塑料科技2026，Vol.54Issue(2)：56-61,6.DOI:10.15925/j.cnki.issn1005-3360.2026.02.010
聚乙烯吡咯烷酮静电喷雾制备锂电池负极材料
Preparation of Anode Materials for Lithium Batteries by Electrostatic Spraying of Polyvinylpyrrolidone
丛振 1刘昆 1董然林 1薛憬 1段亚文1
作者信息
- 1. 合肥工业大学化学与化工学院,安徽 合肥 230000
- 折叠
摘要
Abstract
Silicon-based materials,as commonly used anode materials,possess an extremely high theoretical specific capacity but suffer from significant volume expansion and capacity fading during charge-discharge cycles.To achieve both high specific capacity and cycling stability of silicon materials,certain processing treatments are generally required for silicon-based materials.The experiment prepared polymer microspheres doped with nanosilicon particles using the electrospray method,and then obtained carbon-coated C/Si/SiO2 microspheres through high-temperature carbonization as the anode material for lithium-ion batteries.After 100 cycles at a current density of 0.2 A/g,the material exhibited a specific capacity of 644.8 mAh/g and a capacity retention rate of 81.4%,maintaining stability even at high current densities.The carbon coating significantly reduces the volumetric expansion of silicon particles and enhances the cycling stability of the silicon material.关键词
静电喷雾技术/硅基材料/锂电池Key words
Electrostatic spraying technology/Silicon-based materials/Lithium batteries分类
化学化工引用本文复制引用
丛振,刘昆,董然林,薛憬,段亚文..聚乙烯吡咯烷酮静电喷雾制备锂电池负极材料[J].塑料科技,2026,54(2):56-61,6.
