Quantitation of the dissolution of battery-grade copper foils in lithium-ion battery electrolytes by flame atomic absorption spectroscopy

被引：15

作者：

Zhao, MC

Dewald, HD ^{[1
]}

Staniewicz, RJ

机构：

[1] Ohio Univ, Clippinger Labs, Dept Chem & Biochem, Athens, OH 45701 USA

[2] Saft Res & Dev Ctr, Cockeysville, MD 21030 USA

来源：

ELECTROCHIMICA ACTA | 2004年 / 49卷 / 05期

关键词：

atomic absorption spectroscopy; lithium-ion batteries; copper dissolution;

D O I：

10.1016/j.electacta.2003.09.022

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Atomic absorption spectroscopy (AAS) was shown to be an effective method to quantitatively evaluate the stability of battery-grade copper foils in lithium-ion battery electrolytes at open-circuit. The results showed that copper stability was different between "fresh" electrolyte and electrolytes that had been "aged" for 6 months. In the "fresh" electrolyte, the copper foils showed a small amount of dissolution (up to similar to50 ppm) during their storage for up to 20 weeks. In the "aged" electrolyte, a large amount of copper dissolution (up to several hundred ppm) was found. The study showed that the condition of the electrolytes was critical to the stability of the copper foils. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：683 / 689

页数：7

共 12 条

[1] Morphological studies of Li deposition processes in LiAsF6/PC solutions by in situ atomic force microscopy [J].