含硫添加剂对8μm锂电铜箔性能的影响研究  

Effects of Sulfur⁃Containing Additives on Properties of 8μm Electrolytic Copper Foil for Li⁃ion Battery

作　　者：李谋翠 樊斌锋 赵玉龙 王庆福 王绪军 LI Moucui;FAN Binfeng;ZHAO Yulong;WANG Qingfu;WANG Xujun(Henan Research Institute of High Precision Copper Foil Industrial Technology Co Ltd,Lingbao 472500,Henan,China;Sanmenxia Sci-Tech Service Center for Rural Revitalization,Sanmenxia 472000,Henan,China)

机构地区：[1]河南高精铜箔产业技术研究院有限公司,河南灵宝472500 [2]三门峡市乡村振兴科技服务中心,河南三门峡472000

出　　处：《矿冶工程》2024年第2期188-191,共4页Mining and Metallurgical Engineering

摘　　要：采用线性扫描伏安法和循环伏安剥离法研究了Cu^(2+)、H_(2)SO_(4)、Cl^(-)浓度分别为85 g/L、100 g/L、2 mg/L的电解液中添加光亮剂聚二硫二丙烷磺酸钠(SPS)和3-巯基-1-丙磺酸钠(MPS)对铜电沉积的影响,并研究了SPS和MPS对锂电铜箔抗拉强度、延伸率、光泽度及粗糙度的影响。结果表明,SPS和MPS对铜电沉积具有促进作用,且SPS的促进作用更强;SPS和MPS分别与胶原蛋白和羟乙基纤维素复配后,对铜电沉积的促进作用减弱;SPS更有利于提高铜箔抗拉强度,MPS更有利于提升铜箔延伸率;SPS浓度1.0 mg/L、MPS浓度1.5 mg/L时,铜箔毛面光泽度和粗糙度均较好,铜箔表面平整且致密。The effects of brightening agent,such as polysodium dithiodipropanesulfonate(SPS)and sodium 3⁃mercapto⁃1⁃propanesulfonate(MPS),on electrodeposition of Cu from electrolyte with Cu^(2+),H_(2)SO_(4),Cl^(-)concentration of 85 g/L,100 g/L and 20 mg/L respectively were studied by adopting linear scanning voltammetry and cyclic voltammetric stripping(CVS),and the effects of SPS and MPS on the tensile strength,elongation,glossiness and roughness of electrolytic copper foil for Li⁃ion batteries were discussed.The results show that SPS and MPS can promote copper electrodeposition,and also SPS is better than MPS in promotion.However,the compounding with collagen and hydroxyethylcellulose will result in less promotion of copper electrodeposition.In addition,SPS is conducive to improving the tensile strength of copper foil,and MPS is conducive to improving the elongation of copper foil.With concentration of SPS and MPS at 1 mg/L and 1.5 mg/L respectively,the prepared copper foil has flat and dense surface,with better glossiness and roughness.

关 键 词：锂电铜箔 电解铜箔 含硫添加剂 胶原蛋白 光泽度 粗糙度 光亮剂 锂离子电池 

分 类 号：TQ153.1[化学工程—电化学工业]