Nitrogen-doped TiO2 nanospheres for advanced sodium-ion battery and sodium-ion capacitor applications

被引：145

作者：

Liu, Sainan ^{[1
]}

Cai, Zhenyang ^{[1
,2
]}

Zhou, Jiang ^{[1
,2
]}

Pan, Anqiang ^{[1
,2
]}

Liang, Shuquan ^{[1
,2
]}

机构：

[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China

[2] Cent S Univ, Minist Educ, Key Lab Nonferrous Met Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2016年 / 4卷 / 47期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

ULTRAHIGH-ENERGY DENSITY; HIGH-PERFORMANCE; ANODE MATERIAL; ELECTRODE MATERIALS; CARBON NANOSHEETS; LITHIUM BATTERIES; ANATASE TIO2; STORAGE; DEVICE; NANOPARTICLES;

D O I：

10.1039/c6ta08472a

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-ion batteries (NIBs) and sodium-ion capacitors (NICs) are considered to be promising energy storage systems for applications in future hybrid electric vehicles (HEVs) and electric vehicles (EVs) because of the low cost and abundance of Na. Herein, NIBs and NICs based on nitrogen-doped TiO2 (referred to as N-TiO2) nanospheres as anode materials were analyzed. The N-TiO2 nanospheres exhibited a stable capacity of 162 mA h g(-1) over 1000 cycles at 1 A g(-1), as well as a superior rate performance in NIBs. In NICs, the N-TiO2//AC device displayed a high energy density of similar to 80.3 W h kg(-1), a high power density of similar to 12 500 W kg(-1), and excellent long-term cycling stability for up to 6500 cycles.

引用

页码：18278 / 18283

页数：6

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