中国造纸2026，Vol.45Issue(5)：12-21,10.DOI:10.11980/j.issn.0254-508X.2026.05.002
纤维素纳米纤丝增强聚环氧乙烷基固态电解质的制备及性能研究
Study on Preparation and Properties of Polyethylene Oxide-based Solid Electrolytes Reinforced with Cellulose Nanofibrils
摘要
Abstract
This study fabricated solid electrolytes polyethylene oxide(PEO)/LiTFSI/CNF using cellulose nanofibril(CNF)as a green reinforc-ing filler via solution casting,and systematically investigated the effects of CNF content on the structure and properties of the electrolytes.The results demonstrated that CNF formed a three-dimensional network framework within the PEO matrix through physical crosslinking,sig-nificantly enhancing the mechanical strength and high-temperature dimensional stability of the electrolyte.This reinforcement effectively im-proved lithium dendrite suppression and extended the safety margin of the battery.Moreover,an appropriate amount of CNF suppressed PEO crystallization and promoted the formation of amorphous regions,providing more continuous pathways for lithium-ion transport.The electro-lyte with 3%CNF exhibited optimal overall performance:an ionic conductivity of 5.95×10⁻⁴ S/cm at 60℃,a lithium-ion transference number of 0.539,and an electrochemical stability window of 4.98 V.The solid-state lithium-ion battery assembled with this electrolyte demonstrating excellent electrochemical stability and promising practical potential.关键词
纤维素纳米纤丝/聚环氧乙烷/固态电解质/锂离子电池Key words
cellulose nanofibrils/polyethylene oxide/solid electrolyte/lithium-ion batteries分类
轻工纺织引用本文复制引用
董昕宇,杨仁党,胡敏,蓝敬,王阳..纤维素纳米纤丝增强聚环氧乙烷基固态电解质的制备及性能研究[J].中国造纸,2026,45(5):12-21,10.基金项目
广东省基础与应用基础研究基金(2024A1515011654,2023A1515110431). （2024A1515011654,2023A1515110431）
