The low-temperature (400 °C) coating of few-layer graphene on porous Li4Ti5O12 via C28H16Br2 pyrolysis for lithium-ion batteries

被引：40

作者：

Jian, Zelang ^{[1
,2
]}

Zhao, Liang ^{[2
]}

Wang, Rui ^{[2
]}

Hu, Yong-Sheng ^{[2
]}

Li, Hong ^{[2
]}

Chen, Wen ^{[1
]}

Chen, Liquan ^{[2
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

RSC ADVANCES | 2012年 / 2卷 / 05期

关键词：

CARBON; SPINEL; ELECTRODE; INTERCALATION; LI4+XTI5O12; PERFORMANCE; ABSORPTION; INSERTION; ANODE;

D O I：

10.1039/c2ra01263d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Porous Li4Ti5O12 coated with few-layer graphene was prepared via the low-temperature pyrolysis of C28H16Br2 at 400 degrees C. The coating layer was very thin and uniform. The coated sample shows superior Li storage performance compared with the as-prepared sample. Capacities of 131 and 104 mA h g(-1) can be reached at current rates of 5 and 10 C, respectively. Moreover, cyclic performance is significantly improved after coating. The capacity decreases from 144.6 to 124.4 mA h g(-1) after 2400 cycles at a current rate of 2 C in a half cell versus Li/Li+, with high capacity retention of 86%.

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页码：1751 / 1754

页数：4

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