Fabrication of phosphorus-doped carbon-decorated Li4Ti5O12 anode and its lithium storage performance for Li-ion batteries

被引：15

作者：

Hu, Yisheng ^{[1
]}

Jiang, Zeyun ^{[2
]}

Cai, Longhao ^{[3
]}

Thompson, Jamie ^{[4
]}

机构：

[1] Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China

[2] Heriot Watt Univ, Inst Petr Engn, Edinburgh EH14 4AS, Midlothian, Scotland

[3] PetroChina, Drilling & Prod Technol Res Inst Liaohe Oilfield, Panjin 124000, Peoples R China

[4] Imperial Coll London, Dept Mat, London SW7 2AZ, England

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 14期

关键词：

Li-ion batteries; Li4Ti5O12; anode; Phosphorus-doped carbon; Rate capability; ELECTROCHEMICAL PERFORMANCE; GRAPHENE; SPINEL;

D O I：

10.1016/j.ceramint.2018.06.123

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this research, the phosphorus-doped carbon-decorated Li4Ti5O12 composite (denoted as Li4Ti5O12 @PC) has been fabricated for the first time using a facile sol-gel-assisted solid-state approach. The effects of P-doping on the crystal structure, morphology and lithium storage property of Li4Ti5O12 @PC are investigated in detail. When used as anode for Li-ion batteries, it presents outstanding rate capacity (143.3 mAh g(-1) at 15 C) and cycle life stability (156.8 mAh g(-1) at 5 C after 300 cycles). The excellent lithium storage property is attributed to the coated P-doped carbon layer which can inhibit the growth of Li4Ti5O12 nanoparticles during the synthesis process and provide high conductivity transport pathway for electron. This novel "P-doped carbon coating" strategy can be extended to fabricate other high-property electrodes for energy storage.

引用

页码：17544 / 17547

页数：4

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