关键词: 电解, 沉积物, 制备, 铜箔, 添加剂, 作用机理, 性能, 相互作用

Abstract: Electrolytic copper foil is an important part in lithium ion batteries as the current collector and the carrier of anode materials. It directly influences the battery capacity and cycle life. It is an effective method to control properties of electrolytic copper foils by using additives. The additives change the electrode potential of cathode reactions and effect the microstructure and morphology of foils significantly. In this work, the research process of conventional additives was reviewed as organosulfur compounds, amine compounds, polyether compounds, chlorine ions and ions of rare elements, classified according to their characteristic groups. The interactions between different kinds of additives were also introduced. Based on the analysis and comparison on mechanisms and effects of the additives, key limitations including the poor correlation between mechanisms and performances, contradictions in mechanism interpretations, the lack of effective research methods, and difficulties on industrial applications were pointed out. More researches of deep understanding of mechanisms and more efficient formulations additives are acquired in future.

Key words: electrolysis, deposition, preparation, copper foils, additives, action mechanism, properties, interaction