Synthesis and electrochemical characterization of LiCo1/3Fe2/3PO4/C composite using nano CoFe2O4 as precursor

被引：14

作者：

Wu, Kaipeng ^{[1
]}

Hu, Guorong ^{[1
]}

Du, Ke ^{[1
]}

Peng, Zhongdong ^{[1
]}

Cao, Yanbing ^{[1
]}

机构：

[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 650卷

关键词：

Lithium-ion battery; LiCo1/3Fe2/3PO4/C; Nano CoFe2O4; Electrode materials; Chemical synthesis; LITHIUM-ION BATTERIES; NANOCOMPOSITE CATHODE; PHOSPHO-OLIVINES; PERFORMANCE; FE; SUBSTITUTION; LIFEPO4/C; ROUTE;

D O I：

10.1016/j.jallcom.2015.08.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

LiCo1/3Fe2/3PO4/C composite was synthesized by a solid state method with CoFe2O4 as the precursor and glucose as the carbon source. The composite consists of homogeneous Co-Fe distributed LiCo1/3Fe2/3PO4 with its particles covered by nano-carbon layers, which could prevent the growth of the particles as well as form a fast path for electronic transmission during charging and discharging process. It shows excellent electrochemical performance as the cathode for lithium-ion batteries, which delivers discharge capacities of 154.6, 152.9, 135.4, 122.3, 105.2 and 91.3 mAh g(-1) at 0.05, 0.1, 0.5, 1, 2 and 5 C, respectively, and retains 94.6% of its initial discharge capacity after 30 cycles at 5 C. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：718 / 723

页数：6

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