Construction of Hierarchical MnSe@SnSe2@N-C Nanorods for High-Performance Lithium-Ion Batteries

被引：15

作者：

Zheng, Hui ^{[1
]}

Xu, Han-Shu ^{[1
,2
]}

Hu, Jiaping ^{[1
]}

Liu, Huimin ^{[1
]}

Wei, Lianwei ^{[1
]}

Wu, Shusheng ^{[1
]}

Huang, Yuhu ^{[1
]}

Li, Jin ^{[1
]}

Tang, Kaibin ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Hefei Natl Res Ctr Phys Sci Microscale, Hefei 230026, Peoples R China

来源：

ACS APPLIED ENERGY MATERIALS | 2022年 / 5卷 / 06期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

MnSe@SnSe2@N-C nanorods; nitrogen-doped carbon; high reversible capacity; cycling stability; lithium-ion batteries; N-DOPED CARBON; LONG-CYCLE LIFE; ANODE MATERIALS; BINDER-FREE; NANOPARTICLES; COMPOSITES; CAPACITY; STORAGE; NANOMATERIALS; MICROSPHERES;

D O I：

10.1021/acsaem.2c01293

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：

MnSe@SnSe2 pN-C nanorods coated with nitrogen-doped carbon was successfully synthesized by simple nucleation self-assembly, carbon coating, and in situ selenization methods. In the initial cycle, MnSe@SnSe2@N-C anodes exhibit a high reversible capacity of 704 mA h g(-1) at 0.2 A g(-1), and after 2000 cycles, they also show an outstanding cycling stability of 417.5 mA h g(-1) at 2 A g(-1). Nitrogen-doped carbon mainly was used as a space buffer layer to limit volume expansion and improve the stability of cycling performance, while MnSe plays an important role in the larger capacitance. In short, MnSe@SnSe2@N-C is a promising anode material for high-efficiency lithium-ion batteries.

引用

页码：6586 / 6596

页数：11

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