铜
材料科学
极限抗拉强度
成核
箔法
电化学
电解质
金属
冶金
电流密度
极化(电化学)
复合材料
电极
化学
物理
量子力学
有机化学
物理化学
作者
Yue Sun,Liuyi Huang,Hongbin Xie,Bin Liu,Youtong Fang,Gaorong Han,Jiabin Liu
标识
DOI:10.1016/j.electacta.2023.143068
摘要
A kind of new additive for ultra-thin copper foils with high tensile strength is reported in this work. The highest strength is about 700 MPa with 12 mg/L 2-mercaptothiazoline, and the strengthening effects and mechanisms in different concentrations are studied in detail. 2-Mercaptothiazoline significantly improves the tensile strength of electrolytic copper foils by refining the grains and effectively impeding the slips of dislocations. Fine grains also provide a smooth and flat surface for foils, and weaken the preferred orientation of grains in the cross-section, contributing to the high strength of copper foils at different aspects. The addition of the 2-mercaptothiazoline obviously inhibits the electron transfer process of metal electrodeposition and enhances the electrochemical polarization, resulting in high nucleation density and small nuclei to form fine grains. The high-strength copper foils with a very thin thickness are placed great expectations on the industrial application of lithium-ion batteries.
科研通智能强力驱动
Strongly Powered by AbleSci AI