Synthesis and electrochemical performance of Li1+xTi2-xFex(PO4)3/C anode for aqueous lithium ion battery

被引：49
作者：
Meng, Weiwen [1 ]
Li, Cong [1 ]
Yao, Meng [1 ]
He, Zhangxing [1 ,3 ]
Wu, Xianwen [2 ]
Jiang, Zhen [1 ]
Dai, Lei [1 ,3 ]
Wang, Ling [1 ,3 ]
机构：
[1] North China Univ Sci & Technol, Sch Chem Engn, Tangshan 063009, Peoples R China
[2] Jishou Univ, Sch Chem & Chem Engn, Jishou 416000, Peoples R China
[3] North China Univ Sci & Technol, Hebei Prov Key Lab Photocatalyt & Electrocatalyt, Tangshan 063009, Peoples R China
来源：
ADVANCED POWDER TECHNOLOGY | 2020年 / 31卷 / 04期
基金：
中国国家自然科学基金;
关键词：
CARBON; CATHODE; OXYGEN;
D O I：
10.1016/j.apt.2020.01.015
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Aqueous lithium ion batteries (ALIBs) exhibit great application prospects in energy storage system, and the anode materials is the key to the extensive development of ALIBs. In this study, Li1+xTi2−xFex(PO4)3/C (x = 0, 0.05, 0.10, 0.30) composites as anode for ALIBs were synthesized via sol-gel method. The effect of Fe doping on LiTi2(PO4)3/C properties was assessed by electrochemical measurements. In all of these composites, Li1.1Ti1.9Fe0.1(PO4)3/C (LCF-10) presents the best electrochemical properties. LCF-10 exhibits discharge capacity with 120.0 and 80.2 mAh g−1 at 0.5 and 15C, severally, increasing by 1.2 and 1.3 times compared with the original LiTi2(PO4)3/C. Besides, LCF-10 demonstrates remarkable cycling performance, whose discharge capacity retention can keep 70.2% at 5 C for 1000 cycles. Our study demonstrates that Fe doping for LiTi2(PO4)3 lattice can efficiently enhance electrochemical properties of LiTi2(PO4)3/C composite. © 2020 The Society of Powder Technology Japan
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页码：1359 / 1364
页数：6
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