Sodium titanate nanotube/graphite, an electric energy storage device using Na+-based organic electrolytes

被引：76
作者：
Zhao, Liping [1 ,2 ]
Qi, Li [1 ]
Wang, Hongyu [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Elect Chem, Changchun 130022, Peoples R China
[2] Grad Univ, Chinese Acad Sci, Beijing 100039, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2013年 / 242卷
基金：
中国国家自然科学基金;
关键词：
Sodium titanate nanotube; Graphite; Sodium-ion capacitors; Sodium-ion-conductive channel; Electrochemical capacitors; POSITIVE ELECTRODE; ION BATTERIES; GRAPHITE; INTERCALATION; PERFORMANCE; AC/GRAPHITE; NANOTUBES; INSERTION;
D O I：
10.1016/j.jpowsour.2013.05.132
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：
Sodium titanate nanotube (Na-TNT) sample has been prepared by a hydrothermal method using TiO2 and NaOH as starting materials and then calcined at 400 degrees C in air. X-ray diffraction and N-2 adsorption-desorption tests have been employed to characterize its crystal and pore structure. The Na-TNT can be used as the negative electrode for electric energy storage devices using Na+-based organic electrolytes. The charge storage mechanism at the Na-TNT negative electrode has been investigated by electrochemical tests (galvanostatic charge-discharge, cyclic voltammetry, etc.), ex-situ XRD and HRTEM measurements. The electric energy storage devices of Na-TNT/graphite have been constructed and the influence of graphite/Na-TNT mass ratio on their performance has been studied. (C) 2013 Elsevier B.V. All rights reserved.
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页码：597 / 603
页数：7
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