超薄锂箔制造及其在预锂化中的应用  

Fabrication of Ultra-thin Lithium Foil and Application in Pre-lithiation

作　　者：段续之 陈国栋 石良 董杉木[2,3,4] 崔光磊 Xuzhi Duan;Guodong Chen;Liang Shi;Shanmu Dong;Guanglei Cui(College of Materials Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;Qingdao Industrial Energy Storage Research Institute,Qingdao Institute of Bioenergy and Bioprocess Technology,Chinese Academy of Sciences,Qingdao 266101,China;Shandong Energy Institute,Qingdao 266101,China;Qingdao New Energy Shandong Laboratory,Qingdao 266101,China)

机构地区：[1]青岛科技大学材料科学与工程学院,青岛266042 [2]中国科学院青岛生物能源与过程研究所、青岛储能产业技术研究院,青岛266101 [3]山东能源研究院,青岛266101 [4]青岛新能源山东省实验室,青岛266101

出　　处：《化学学报》2025年第2期184-196,共13页Acta Chimica Sinica

基　　金：国家重点研发计划金融科技项目(No.2022YFB3803400);国家自然科学基金(No.22179135);中国社会科学基金博士后基金(No.GZC20232806);山东省自然科学基金(Nos.ZR2024QB297,ZR2023JQ003,ZR2022ZD11);青岛市博士后基金(No.QDBSH20240102103);山东省泰山学者(No.ts201511063);山东省青年专家泰山学者项目(No.tsqn202103145);青岛新能源山东实验室(No.QIBEBT/SEI/QNESLS202304)资助。

摘　　要：新型超薄锂箔相较于传统锂箔在锂金属电池中表现出更高的能量密度、更好的安全性以及更低的材料成本.然而,超薄锂箔的工业生产面临严峻挑战,主要源于生产过程中可能出现的褶皱和损坏,以及工艺的复杂性.因此,亟需改进或开发新的制造方法以满足工业化需求.另一方面,为了提高锂离子电池的首次库伦效率(ICE)和延长循环寿命,锂箔常用于在电池循环前补充首圈充放电过程中消耗的正极侧活性锂.然而,过量锂金属与电解液的副反应会显著影响电池的寿命和安全性.基于此,本综述将重点讨论传统锂箔制造所面临的问题,并结合相关实例分析解决这些问题的具体策略.同时,概述新型超薄锂箔制备方法,并评估其在工业应用中的可行性.此外,本文还总结了锂箔在预锂化中的应用,提出超薄锂箔制造与预锂化相结合的发展趋势.本综述旨在为该领域的研究人员提供宝贵的见解与启发,成为推动锂箔制造和应用创新的综合性参考资源.Novel ultra-thin lithium foils, present significant advantages over conventional lithium foils in terms of energy density, safety, and material cost reduction for lithium metal batteries. These benefits stem from the enhanced electrochemical performance and efficiency that ultra-thin foils can deliver. However, the industrial production of such foils is fraught with challenges. Key issues include the potential for creases and damage during the manufacturing process, as well as the complexity of the techniques required to produce them at scale. Thus, there is an urgent need to innovate existing manufacturing methods to meet the growing industrial demand for ultra-thin lithium foils. In addition to their manufacturing challenges, ultra-thin lithium foils play a crucial role in enhancing the initial coulomb efficiency (ICE) and extending the cycle life of lithium-ion batteries. They are commonly employed to replenish active lithium on the cathode side, compensating for the lithium consumed during the initial charging and discharging phases. However, excessive lithium metal can lead to side reactions with the electrolyte, negatively affecting battery life and safety. Therefore, careful management of lithium deposition is essential to optimize battery performance while ensuring safety. This review specifically addresses the challenges associated with conventional lithium foil manufacturing, providing a detailed analysis of the underlying issues and proposing targeted strategies to overcome them. Relevant examples from recent research will be presented to illustrate successful approaches. Furthermore, the review explores novel preparation methods for ultra-thin lithium foils, evaluating their feasibility for industrial applications. Additionally, the review will summarize the current use of lithium foils in pre-lithiation processes, emphasizing the trend toward integrating ultra-thin lithium foil manufacturing with these processes. This integration is expected to enhance the performance of lithium batteries while simul

关 键 词：辊压法 熔融法 微纳制造 锂箔预锂化 真空蒸镀预锂化 

分 类 号：TM912[电气工程—电力电子与电力传动]