具有改进锂离子电池性能的碳纳米管包覆氧化亚铁阳极。

Carbon nanotube-wrapped FeO anode with improved performance for lithium-ion batteries.

作者信息

Gao Guoliang, Jin Yan, Zeng Qun, Wang Deyu, Shen Cai

机构信息

Ningbo Institute of Materials Technology & Engineering Chinese Academy of Sciences. 1219 Zhongguan Road, Zhenhai District, Ningbo, Zhejiang, China.

Guangzhou Key Laboratory for Special Fiber Photonic Devices, South China Normal University, Guangzhou 510006, China.

出版信息

Beilstein J Nanotechnol. 2017 Mar 17;8:649-656. doi: 10.3762/bjnano.8.69. eCollection 2017.

DOI:10.3762/bjnano.8.69

PMID:28462066

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5372711/

Abstract

Metall oxides have been proven to be potential candidates for the anode material of lithium-ion batteries (LIBs) because they offer high theoretical capacities, and are environmentally friendly and widely available. However, the low electronic conductivity and severe irreversible lithium storage have hindered a practical application. Herein, we employed ethanolamine as precursor to prepare FeO/COOH-MWCNT composites through a simple hydrothermal synthesis. When these composites were used as electrode material in lithium-ion batteries, a reversible capacity of 711.2 mAh·g at a current density of 500 mA·g after 400 cycles was obtained. The result indicated that FeO/COOH-MWCNT composite is a potential anode material for lithium-ion batteries.

摘要

金属氧化物已被证明是锂离子电池（LIBs）负极材料的潜在候选者，因为它们具有高理论容量，且环境友好、来源广泛。然而，低电子电导率和严重的不可逆锂存储阻碍了其实际应用。在此，我们采用乙醇胺作为前驱体，通过简单的水热合成法制备了FeO/COOH-MWCNT复合材料。当这些复合材料用作锂离子电池的电极材料时，在400次循环后，电流密度为500 mA·g时，可逆容量为711.2 mAh·g。结果表明，FeO/COOH-MWCNT复合材料是一种潜在的锂离子电池负极材料。