锂离子电池电解液灌装阀的研发及应用  

Development and application of filling valve based on lithium-ion battery electrolyte

作　　者：贾颜骏 姜华 吕永兴 宋洪伟 任侠[1] 段振亚[1] JIA Yanjun;JIANG Hua;LYU Yongxing;SONG Hongwei;REN Xia;DUAN Zhenya(College of Mechanical and Electrical Engineering,Qingdao University of Science&Technology,Qingdao 266100,Shandong Province,China;Qingdao Jingrui Machinery Manufacturing Co.,Ltd.,Qingdao 266200,Shandong Province,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266100 [2]青岛精锐机械制造有限公司,山东青岛266200

出　　处：《化学工程》2024年第2期34-37,71,共5页Chemical Engineering(China)

基　　金：青岛市关键技术攻关及产业化示范类项目(23-1-2-qljh-17-gx);山东省科技型中小企业创新能力提升工程(2023TSGC0493)。

摘　　要：作为新能源汽车的核心元件,锂离子电池的稳定性和可靠性对于新能源汽车的可持续发展至关重要。由于锂离子电池的电解液由具有极高挥发性的有机碳酸酯溶剂和强腐蚀性的六氟磷酸锂或三元锂构成,如何在电解液的灌装环节确保精确一致的电解液的注液量和操作的安全性就成为了被关注的热点问题。文中主要针对在电解液灌装环节现有的国内外控制技术进行了较为系统的分析和比较。在此基础上,为解决锂离子电池电解液在灌装环节的难题而研发的膜塞阀,从结构特点、研发历程和工业化应用情况进行了详细的介绍。产品特性测试数据和工业化应用结果表明:研发的膜塞阀相比于其他灌装阀具有耐腐蚀性、高效密封、即时检漏和快捷检修等优点,能逐步实现对国外阀门的替代,对提升锂离子动力电池的性能和安全性、降低生产成本,促进国内新能源汽车的健康快速发展有重要意义。As the core component of new energy vehicles,the stability and reliability of lithium-ion batteries are crucial to the sustainable development of new energy vehicles.Due to the lithium-ion battery electrolyte is composed of volatile organic carbonate solvent and corrosive lithium hexafluorophosphate or lithium ternary,how to ensure accurate and consistent electrolyte injection volume and operation safety in the filling process has become a hot issue.The existing domestic and foreign control technologies in the electrolyte filling process were analyzed and compared.On this basis,targeting the membrane plug valve was developed to solve the problem of lithium-ion battery electrolyte in the filling process,introducing it in detail from the structural characteristics,research,development history and industrial application.The results show that compared with other filling valves,the membrane plug valve has the advantages of corrosion resistance,efficient sealing,instant leak detection and quick maintenance.The membrane plug can gradually realize the replacement of foreign valves,which is important to improve the performance and safety of lithium-ion power batteries,reduce production costs,and promote the healthy and rapid development of domestic new energy vehicles.

关 键 词：锂离子电池 电解液灌装 膜塞阀 

分 类 号：TH134[机械工程—机械制造及自动化]