Direct synthesis of iron oxide nanoparticles on an iron current collector as binder-free anode materials for lithium-ion batteries

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• 作者：Yunhai Ding ; Jiaxin Li ; Yi Zhao ; Lunhui Guan ; ^{guanlh@fjirsm.ac.cn}
• 关键词：Energy storage and conversion ; Oxidation ; Lithium ion batteries
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：15 August, 2012
• 卷：81
• 期：Complete
• 页码：105-107
• 文件大小：597 K

摘要

Fe₂O₃ nanoparticles have been synthesized on the surface of an iron mesh current collector via a simple thermal oxidation progress within 6 min. Without any further treatment, this calcinated iron mesh current collector can be used directly as binder-free anode for lithium ion batteries. Electrochemical tests show the obtained Fe₂O₃ anode a good rate behavior and an excellent cycling retention. After 200 cycles, this binder-free Fe₂O₃ anode still can afford a discharge capacity of 1050 mAh g^鈭?#xA0;1 at the current density of 200 mA g^鈭?#xA0;1. The improvements of these electrochemical properties are attributed to the improved electron conductivity provided by the iron mesh current collector.