摘要
为研究苯并三氮唑(BTA)在锂电铜箔抗氧化方面的应用,运用高温烘箱、扫描电子显微镜(SEM)、电化学工作站等手段对BTA进行了研究。研究表明,铜箔在实验浓度范围内(BTA质量浓度0.1~2.0 mg/L),经BTA、BTA+植酸(PA)、BTA+硅烷偶联剂(KH792)三种钝化液处理后,放置150℃高温烘箱保温10 min,均发生了不同程度的氧化变色,表面轻微泛黄。经BTA+草酸(OA)配置成的钝化液处理后,同样放置150℃高温烘箱保温10 min,铜箔变色不明显,并且其微观形貌均未见明显变化,BTA和OA配合使用形成的钝化膜膜电阻和反应电阻相对更高。
The application of benzotriazole(BTA)in the oxidation resistance of lithium copper foil was studied by means of high temperature oven,scanning electron microscope(SEM)and electrochemical workstation.The results show that the copper foil treated with BTA,BTA+phytic acid(PA)and BTA+silane coupling agent(KH792)in the experimental concentration range(BTA mass concentration is 0.1 to 2.0 mg/l)has different degrees of oxidation discoloration and slight yellows after being placed in the oven at 150℃ for 10 min.The copper foil treated with BTA+oxalic acid(OA)passivation solution showed no obvious discoloration under the same conditions,and no significant micromorphology changes were observed by electron microscope.The film resistance and reaction resistance of the passivation film formed by BTA and OA were relatively higher.
作者
宋言
朱若林
SONG Yan;ZHU Ruolin(Jiangxi Copper Technology Research Institute Co.,Ltd.,Nanchang 330096,China)
出处
《铜业工程》
CAS
2023年第3期103-107,共5页
Copper Engineering
关键词
锂电铜箔
苯并三氮唑
无铬钝化
高温氧化
微观形貌
lithium copper foil
benzotriazole
chromium-free passivation
high temperature oxidation
micromorphology
