Synthesis and Characterization ofα-Fe2O3/C Composite Anode for Lithium Ion Batteries

Chao Wu; Quanchao Zhuang; Shoudong Xu; Yongli Cui; Yinghuai Qiang; Zhi Sun

doi:10.6023/a1106242

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Synthesis and Characterization ofα-Fe₂O₃/C Composite Anode for Lithium Ion Batteries

Chao Wu Quanchao Zhuang Shoudong Xu Yongli Cui Yinghuai Qiang Zhi Sun

Year: 2012 Journal: Acta Chimica Sinica Vol: 70 (1)Pages: 51-51 Publisher: Science Press

DOI: 10.6023/a1106242

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Abstract

采用高温固相反应法制备α-Fe2O3/C复合材料,运用X射线衍射(XRD)、扫描电子显微镜(SEM)、充放电测试、电化学阻抗谱对其结构和电化学性能进行了表征.充放电测试结果显示,α-Fe2O3/C复合材料循环50周时可逆充电容量为935.3mAh·g-1,循环性能较商品化α-Fe2O3有显著改善.电化学阻抗谱测试结果显示,α-Fe2O3/C复合材料电极在首次嵌锂过程中分别出现了锂离子通过固体电解质相界面膜(SEI膜)的迁移、材料的电子电导率、电荷传递过程相关的半圆,并详细分析了它们的变化规律.

Keywords:

Chemistry Anode Lithium (medication) Composite number Characterization (materials science) Ion Inorganic chemistry Nuclear chemistry Nanotechnology Physical chemistry Electrode Composite material Organic chemistry

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Advancements in Battery Materials

Physical Sciences → Engineering → Electrical and Electronic Engineering

Extraction and Separation Processes

Physical Sciences → Engineering → Mechanical Engineering

Semiconductor materials and interfaces

Physical Sciences → Physics and Astronomy → Atomic and Molecular Physics, and Optics

Synthesis and Characterization ofα-Fe₂O₃/C Composite Anode for Lithium Ion Batteries

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