Enhanced reversible Li-ion storage in Si@Ti3C2 MXene nanocomposite

被引：87

作者：

Kong, Fanyu ^{[1
]}

He, Xiaodong ^{[1
]}

Liu, Qianqian ^{[1
]}

Qi, Xinxin ^{[1
]}

Sun, Dongdong ^{[1
]}

Zheng, Yongting ^{[1
]}

Wang, Rongguo ^{[1
]}

Bai, Yuelei ^{[1
]}

机构：

[1] Harbin Inst Technol, Ctr Composite Mat & Struct, Natl Key Lab Sci & Technol Adv Composites Special, Harbin 150080, Heilongjiang, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2018年 / 97卷

基金：

中国博士后科学基金; 黑龙江省自然科学基金; 中国国家自然科学基金;

关键词：

Silicon; Si@Ti3C2 nanocomposite; MXene; Li-ion batteries; BATTERY ANODES; ELECTROCHEMICAL PROPERTIES; LITHIUM; SILICON; TI3C2; ELECTRODES; COMPOSITE; CAPACITY; SHEETS;

D O I：

10.1016/j.elecom.2018.10.003

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The Si@Ti3C2 MXene nanocomposite was prepared in this paper by simply ultrasonic mixing of commercially available nanosized Si and Ti3C2 MXene. The introduction of Ti3C2 makes the aggregation of silicon nanoparticles relieved. Electrochemical measurements show that the nanocomposite maintains a reversible capacity of 188 mAh.g(-1) at 0.2 A.g(-1) after 150 cycles and exhibits improved capacity retention, which are significantly better than those of pure Si. The enhanced cycling stability and rate capability are attributed to the good electrical connection between silicon and Ti3C2. This study provides a new available matrix and guidance for the applications of MXenes in Si-based anode LIBs.

引用

页码：16 / 21

页数：6

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