冷冻干燥法制备木浆纤维素隔膜在锂离子电池中的应用  

Application of Freeze-drying Method to Prepare Wood Pulp Cellulose Separator in Lithium Ion Battery

作　　者：刘家辉 柳和生 Liu Jiahui;Liu Hesheng(Jiangxi Key Laboratory of Polymer Micro Nano Manufacturing and Devices,School of chemical biology and Materials Science,East China University of Technology,Nanchang 330000,China)

机构地区：[1]东华理工大学化学生物与材料科学学院江西省聚合物微纳制造与器件重点实验室,江西南昌330000

出　　处：《广东化工》2020年第7期11-12,23,共3页Guangdong Chemical Industry

基　　金：江西省聚合物微纳制造与器件重点实验室的项目基金支持.

摘　　要：当前,在商业化的锂离子电池(LIBs)中最为广泛的聚烯烃隔膜存在着润湿性差及热稳定能力低的两大缺点,严重的限制了电池性能的提升。纤维素对电解野的可润湿能力强、耐热温度高,是代替聚烯烃制备LIBs隔膜的理想材料。本文选用木浆为原料,利用冷冻干燥技术制备出了高吸液率与高热稳定性的纤维素基LIBs隔膜。Currently,the most widely used polyolefin separators in commercial lithium-ion batteries(LIBs)have two shortcomings:poor wettability and thermal stability,which severely limits the improvement of battery performance.Cellulose has strong wettability to electrolytes and high heat-resistant temperature,which is an ideal material for LIBs separators instead of polyolefins.In this paper,LIBs separators with high liquid absorption and high thermal stability were prepared by using wood pulp as raw materials and freeze-drying technology.

关 键 词：木浆 隔膜 冷冻干燥 

分 类 号：TQ[化学工程]