锂铜箔的新型 W-Si 钝化工艺研究：基于葡萄糖酸钠的多羟基结构的合理利用

IF 3.8 3区工程技术 Q2 ENGINEERING, CHEMICAL

Industrial & Engineering Chemistry Research Pub Date : 2024-10-21 DOI:10.1021/acs.iecr.4c02332

Yong Liu, Lingjie Wang, Xin Ma, Shuai Wang, Hong Zhong, Zhanfang Cao, Liqing Li

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引用次数: 0

摘要

传统的锂铜箔铬酸盐钝化工艺具有一定的危险性，不符合绿色发展的要求。因此，本研究利用葡萄糖酸盐与 Cu2+ 配位的特性，将葡萄糖酸盐吸附在铜箔表面，为 JH-M902 的作用提供锚点。其丰富的羟基结构（C-OH）与 JH-M902 水解产生的 Si-OH 脱水并凝结成 Si-O-C。然后，CuWO4 形成的 WO42+ 和 Cu2+ 填充到薄膜层中。这三种钝化剂协同作用，构建了具有优异耐腐蚀性能的 W-Si 钝化膜。电化学测试表明，钝化膜的腐蚀抑制率高达 98.08%，远高于现有的铬酸盐钝化工艺。本研究提出的工艺可促进锂铜箔无铬钝化的发展，并为其他金属材料的保护提供了新思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Study of a Novel W–Si Passivation Process for Lithium Copper Foils: Rational Utilization of the Polyhydroxy Structure Based on Sodium Gluconate

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Study of a Novel W–Si Passivation Process for Lithium Copper Foils: Rational Utilization of the Polyhydroxy Structure Based on Sodium Gluconate

The traditional chromate passivation process for lithium copper foils is hazardous and does not meet the requirements of green development. Therefore, in this study, utilizing the characteristics of gluconate coordinated with Cu²⁺, gluconate is adsorbed on the surface of copper foil, providing an anchor point for the action of JH-M902. Its rich hydroxyl structure (C–OH) and the Si–OH produced by the hydrolysis of JH-M902 dehydrate and condense to form Si–O–C. Then, WO₄²⁺ and Cu²⁺ formed by CuWO₄ fill in the film layer. These three passivators synergistically construct a W–Si passivation film with excellent corrosion resistance. Electrochemical tests show that the corrosion inhibition rate of the passivated film is as high as 98.08%, which is much higher than that of the existing chromate passivation process. The process proposed in this study can promote the development of chrome-free passivation of lithium copper foil and provides new ideas for the protection of other metal materials.

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来源期刊

Industrial & Engineering Chemistry Research 工程技术-工程：化工

CiteScore

7.40

自引率

7.10%

发文量

1467

审稿时长

2.8 months

期刊介绍： ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.