Novel Sepiolite-Based Materials for Lithium- and Sodium-Ion Storage

被引：20

作者：

Jiang, Wenwu ^{[1
]}

Jiang, Yunhong ^{[1
]}

Zhao, Shijun ^{[1
]}

Peng, Jinfeng ^{[2
]}

Qin, Wei ^{[3
]}

Ouyang, Donghong ^{[1
,4
]}

Ding, Yanhuai ^{[1
]}

机构：

[1] Xiangtan Univ, Inst Rheol Mech, Xiangtan 411105, Hunan, Peoples R China

[2] Xiangtan Univ, Sch Mech Engn, Xiangtan 411105, Hunan, Peoples R China

[3] Changsha Univ Sci & Technol, Sch Mat Sci & Engn, Changsha 410114, Hunan, Peoples R China

[4] Xiangtan Sepiolite Technol Co LTD, Res Inst Sepiolite, Xiangtan 411100, Hunan, Peoples R China

来源：

ENERGY TECHNOLOGY | 2020年 / 8卷 / 03期

基金：

中国国家自然科学基金;

关键词：

anode materials; Li-ion batteries; Na-ion batteries; natural sepiolite; TiO2; ANODE MATERIAL; ANATASE TIO2; CATHODE MATERIAL; BATTERY ANODE; DOPED CARBON; PERFORMANCE; COMPOSITE; NANOMATERIALS; FABRICATION; NANOTUBES;

D O I：

10.1002/ente.201901262

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Natural sepiolite is widely used as an inorganic template to prepare functional nanomaterials. Herein, raw sepiolite and ultrafine TiO2 nanocrystals-decorated sepiolite nanofibers are fabricated by a hydrothermal reaction followed by an annealing process. For Li-storage, the TiO2/sepiolite composites exhibit higher specific capacity and a longer lifespan than raw sepiolite. At a current density of 0.3 A g(-1), the optimized TiO2/sepiolite composites deliver a discharge capacity of 1811 and 618 mAh g(-1) at 1st and 300th cycle, respectively. In addition, the composites show a very stable specific capacity of 100 mAh g(-1) at a current density of 0.1 A g(-1) for Na-storage up to 100 cycles.

引用

页数：7

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