锂电池用电解铜箔性能调控研究进展  

Research Progress on Performance Regulation of Electrolytic Copper Foil for Lithium Batteries

作　　者：杨蕾 朱茂兰 翁威 衷水平 YANG Lei;ZHU Maolan;WENG Wei;ZHONG Shuiping(School of Materials Science and Engineering,Fuzhou University,Fuzhou 350108,China;School of Materials Science and Engineering,Xiamen University of Technology,Xiamen 361024,Fujian,China;Zijin School of Geology and Mining,Fuzhou University,Fuzhou 350108,China;Fujian Provincial Key Laboratory of Green Extraction and High Value Utilization of New Energy Metals,Fuzhou 350108,China;State Key Laboratory of Comprehensive Utilization of Low-grade Refractory Gold Ores(Zijin Mining Group Co.,Ltd.,),Longyan 364200,Fujian,China)

机构地区：[1]福州大学材料科学与工程学院,福州350108 [2]厦门理工学院材料科学与工程学院,福建厦门361024 [3]福州大学紫金地质与矿业学院,福州350108 [4]福建省新能源金属绿色提取与高值利用重点实验室,福州350108 [5]紫金矿业集团股份有限公司低品位难处理黄金资源综合利用国家重点实验室,福建龙岩364200

出　　处：《材料导报》2024年第10期109-117,共9页Materials Reports

基　　金：国家重点基础研究发展计划(973)(2022YFC3900804);国家自然科学基金(51874101)。

摘　　要：新能源动力锂电池行业向高能量密度的逐步迈进推动了负极铜箔集流体朝超薄、低轮廓、高力学性能等高性能的趋势发展。锂电铜箔作为锂电池的关键辅材之一,其质量和特性对锂电池性能起着重要作用。因此,锂电铜箔的性能精准调控和结构定向修饰对提升锂电池性能具有重要意义。本文从锂电铜箔电沉积技术出发,介绍了铜电沉积原理、过程以及当前铜箔市场情况,归纳总结了锂电铜箔的物理性能、化学性能和表面性能对锂电池电化学性能的影响机制,为后续对铜箔性能精准调控提供参考,并重点综述了生箔工艺参数优化和改性处理这两种综合提升锂电铜箔性能和锂电池性能的方法,分析了铜箔结构修饰的研究现状和发展动态。最后,本文指出了目前电解铜箔作为锂电池负极集流体所存在的问题,并对其未来发展趋势进行了展望,以期为高性能锂电铜箔的研发和应用提供参考。The gradual development of new energy power lithium batteries towards high energy density has driven the trends development of high performance,such as ultra-thin,low profile and high mechanical properties of anode copper foil collectors.As one of the key auxiliary materials for lithium batteries,the quality and properties of electrolytic copper foil for lithium batteries play a key role in battery performance.Therefore,the precise regulation of performance and directional modification of structure of the copper foil are of great significance to improving the performance of lithium batteries.This paper introduces the principle and process of copper electrodeposition and the current copper foil market from the perspective of lithium battery copper foil electrodeposition technology,summaries the mechanism of the influence of physical,chemical and surface properties of lithium copper foil on the electrochemical performance of lithium batteries,and provides a reference for the subsequent precise regulation of copper foil performance.It also further illustrates two comprehensive methods to improve the performance of lithium copper foil and lithium battery performance,namely raw foil process parameter optimization and modification treatment,and analyses the current status and development of copper foil structural modification.Finally,this paper illustrates the problems of electrolytic copper foil as lithium battery anode collectors,and looks forward to its future development trends,which guides the development and application of high-performance copper foil for lithium batteries.

关 键 词：电解铜箔 锂电池 铜集流体 特性 锂电性能 

分 类 号：TG178[金属学及工艺—金属表面处理]