Novel sodium/lithium-ion anode material based on ultrathin Na2Ti2O4(OH)2 nanosheet

被引：23

作者：

Zhang, Yuping ^{[1
]}

Guo, Lin ^{[1
]}

Yang, Shihe ^{[1
,2
]}

机构：

[1] Beihang Univ, Sch Chem & Environm, Beijing 100191, Peoples R China

[2] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China

来源：

NANOSCALE | 2015年 / 7卷 / 35期

关键词：

SODIUM RECHARGEABLE BATTERIES; HIGH-PERFORMANCE ANODE; LITHIUM-ION; ELECTROCHEMICAL PERFORMANCE; LI; CAPACITY; STORAGE; NA2TI3O7; ELECTRODE; CATHODES;

D O I：

10.1039/c5nr03076e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ultrathin Na2Ti2O4(OH)(2) nanosheets of similar to 8 nm thickness were prepared by a facile method for the first time. The resulting material was also used as a conducting agent and binder-free anode, both for sodium-ion batteries and lithium-ion batteries, for the first time. The Na2Ti2O4(OH)(2) nanosheets exhibited excellent Na/Li-ion storage performance. A long-term cycling performance of the ultrathin Na2Ti2O4(OH)(2) nanosheets of 120 mA h g-1 at similar to 10C was retained after 500 cycles for sodium-ion batteries, and 150 mA h g(-1) at similar to 1C was kept after 500 cycles for lithium-ion batteries. By comparison, the Na-ion storage performance is much better than the Li-ion storage performance of the Na2Ti2O4(OH)(2) nanosheets anode, because of the existence of Na in the Na2Ti2O4(OH)(2) host.

引用

页码：14618 / 14626

页数：9

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