Ultrafine TiO2(B) nanowires for ultrahigh-rate lithium-ion batteries

被引：14
|
作者：
Wang, Yan [1 ]
Zhang, Jing [2 ]
机构：
[1] Hunan Univ Sci & Technol, Sch Informat & Elect Engn, Xiangtan 411201, Hunan, Peoples R China
[2] Xiangtan Univ, Natl Prov Lab Special Funct Thin Film Mat, Xiangtan 411105, Hunan, Peoples R China
来源：
IONICS | 2020年 / 26卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Lithium-ion batteries; Anode; High rate; Long cycles; TiO2(B) nanowires; ENHANCED ELECTROCHEMICAL PERFORMANCE; TIO2-B NANOWIRES; ANODE MATERIALS; INTERCALATION; STORAGE;
D O I：
10.1007/s11581-019-03291-z
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We first report a facile hydrothermal and postheat treatment route for preparing TiO2(B) nanowires with ultrahigh surface area, up to 209.74 m(2) g(-1). Cyclic voltammetry and electrochemical impedance spectroscopy show that the nanowire structure improves the electron and Li-ion transport in the electrode which results in better electrochemical kinetics than that of the anatase TiO2 nanowires. TiO2(B) nanowire can deliver a discharge capacity of 205.5 mAh g(-1) at an ultrahigh rate of 10 A g(-1) with a capacity retention of 70 mAh g(-1) after 10,000 cycles.
引用
收藏
页码：1159 / 1164
页数：6
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