Cu doped V2O5 flowers as cathode material for high-performance lithium ion batteries

被引：5

作者：

Yu, Hong ^{[1
,2
]}

Rui, Xianhong ^{[1
,2
]}

Tan, Huiteng ^{[1
,2
]}

Chen, Jing ^{[1
]}

Huang, Xin ^{[1
]}

Xu, Chen ^{[1
,2
]}

Liu, Weiling ^{[1
]}

Yu, Denis Y. W. ^{[2
]}

Hng, Huey Hoon ^{[1
]}

Hoster, Harry E. ^{[2
]}

Yan, Qingyu ^{[1
,2
,3
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[2] Nanyang Technol Univ, TUM CREATE Ctr Electromobil, Singapore 639798, Singapore

[3] Nanyang Technol Univ, Energy Res Inst, Singapore 637459, Singapore

来源：

NANOSCALE | 2013年 / 5卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

VANADIUM PENTOXIDE; HOST MATERIALS; INTERCALATION; ELECTRODES; STORAGE; OXIDES; COMPOSITES; OXIDATION; INSERTION; SPHERES;

D O I：

10.1039/c3nr00548h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hierarchical Cu doped vanadium pentoxide (V2O5) flowers were prepared via a simple hydrothermal approach followed by an annealing process. The flower precursors are self-assembled with 1D nanobelts surrounding a central core. The morphological evolution is investigated and a plausible mechanism is proposed. As the cathode material for lithium ion batteries, the Cu doped V2O5 samples exhibit improved electrochemical performance compared to the un-doped ones. Among them Cu0.02V1.98O5 delivered higher reversible specific capacities, better cycling stabilities and excellent rate capabilities, e. g. 97 mA h g(-1) at 20.0 C.

引用

页码：4937 / 4943

页数：7

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