Preparation and characterization of Li4Ti5O12 /C anode material for lithium ion batteries

被引：0

作者：

Zhao, Xi ^{[1
]}

Tian, Yanhong ^{[1
]}

Zhang, Xuejun ^{[1
]}

Chen, Yong ^{[1
]}

机构：

[1] School of Meterials Science and Engineering, Beijing University of Chemical Technology, Beijing

来源：

Huagong Xuebao/CIESC Journal | 2015年 / 66卷 / 05期

关键词：

Electrochemistry; Li[!sub]4[!/sub]Ti[!sub]5[!/sub]O[!sub]12[!/sub; Lithium ion battery; Nanoparticles; PEG; Powders; Sol-gel method;

D O I：

10.11949/j.issn.0438-1157.20141179

中图分类号：

学科分类号：

摘要：

In order to enhance electrical conductivity and rate capability of Li4Ti5O12, the Li4Ti5O12 /C powder was prepared by the sol-gel method, using PEG as carbon source. The performance of Li4Ti5O12 /C coated by three different molecular weight carbon sources: PEG (400, 600, and 1000), was investigated with TG, XRD, SEM, TEM, constant current charge-discharge, rate discharge and EIS. The material obtained by using PEG1000 as carbon source had the best electrochemical performance. Initial discharge capacity was 143.5 mA·h·g-1 at 0.1C rate, and discharge capacity remained 105 mA·h·g-1 at 2C rate, capacity retention ratio was 73.17%, in addition, it had the smallest resistance. © All rights reserved.

引用

页码：1989 / 1995

页数：6

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