Quantitation of the dissolution of the graphite-coated copper foil in lithium-ion battery electrolytes by flame atomic absorption spectroscopy

被引：8

作者：

Zhao, MC

Dewald, HD ^{[1
]}

Staniewicz, RJ

机构：

[1] Ohio Univ, Clippinger Labs, Dept Biochem & Chem, 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.2003.09.020

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 used to quantitatively evaluate the stability of copper foils coated with graphite and binder in lithium (Li)-ion battery electrolytes at open-circuit. The results showed that copper dissolution was extremely small in fresh electrolyte. However, atmospheric exposure markedly influenced the stability of copper and caused large amounts of dissolution. In addition, copper dissolution was found to increase (up to several hundred ppm) in electrolyte that had been aged for 6 months. The study showed that the condition of the electrolytes was critical to the stability of the graphite-coated copper foils. (C) 2003 Elsevier Ltd. All fights reserved.

引用

页码：677 / 681

页数：5

共 10 条

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