锂电池极片轧制技术研究进展  

Research progress on rolling technology of lithium-ion battery electrodes

作　　者：孙静娜 向文杰[1,2] 黄华贵 苑振革 李金蕊[1,2] SUN Jing-na;XIANG Wen-jie;HUANG Hua-gui;YUAN Zhen-ge;LI Jin-rui(National Engineering Research Center of Cold-rolled Strip Equipment and Technology,Yanshan University,Qinhuangdao 066004,Hebei,China;School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,Hebei,China;Xingtai Naknor Technology Co.,Ltd.,Xingtai 054001,Hebei,China)

机构地区：[1]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004 [2]燕山大学机械工程学院,河北秦皇岛066004 [3]邢台纳科诺尔精轧科技股份有限公司,河北邢台054001

出　　处：《中国冶金》2021年第5期12-18,共7页China Metallurgy

基　　金：河北省重点研发计划资助项目(20314402D);国家自然科学基金资助项目(51674222)。

摘　　要：动力锂离子电池作为新能源汽车的"心脏",其核心部件——正负极片的轧制厚度一致性、压实密度及剥离强度等指标直接决定着锂电池关键性能及安全性。针对锂电池极片轧制工艺技术及装备,介绍了近年来国内外学者在极片新型轧制工艺、轧制后极片微结构及性能、轧制过程工艺模型及极片轧制设备等方面的研究现状及研究成果,并结合未来锂电池行业需求及极片制备行业发展现状,对极片轧制工艺研究及装备工艺智能化升级方向进行了展望。Lithium-ion power batteries are the heart of new energy vehicles. The key performance and safety of lithium batteries are directly determined by the consistency of rolling thickness, compaction density and peel strength of electrodes, which are the core components of lithium-ion power batteries. For the rolling technology and equipment of lithium battery electrodes, the research status and achievements of domestic and foreign scholars in recent years on new rolling technology, rolling effects on porosity and electrochemical properties, theoretical models of rolling process and rolling equipment were reviewed and summarized. The outlook of electrodes rolling process theoretical research and intelligentization of rolling equipment and process were forecasted based on the future demand of lithium battery industry and the development status of electrode preparation industry.

关 键 词：轧制 锂离子电池 极片 压实 孔隙率 

分 类 号：TM912[电气工程—电力电子与电力传动]