期刊
ACS OMEGA
卷 6, 期 27, 页码 17391-17399出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.1c01647
关键词
-
资金
- Doctoral Research Fund of Lanzhou City University [LZCU-BS2020-03]
The study successfully synthesized composites of tin chalcogenides and graphite, showing their excellent lithium-storage ability and cyclic performance as anode materials for lithium-ion batteries.
Tin chalcogenides are considered as promising anode materials for lithium-ion batteries (LIBs) due to their high theoretical lithium-storage capacity. Herein, we have successfully synthesized the composites of tin chalcogenides and graphite, that is, SnS/C, SnSe/C, and SnS0.5Se0.5/C, via a simple one-pot solid-state method. During the electrochemical test, they exhibit excellent lithium-storage ability and cyclic performance as the anode electrodes of LIBs due to the introduction of carbon. In particular, (i) SnS/C displayed a high specific capacity of 875 mAh g(-1) at 0.2 A g(-1) over 200 cycles; (ii) SnSe/C presents 734 mAh g(-1) at 0.2 A g(-1) after 100 cycles, and it delivers 690 mAh g(-1) at 1.0 A g(-1) over 300 cycles; and (iii) the SnS0.5Se0.5/C composite electrode delivers a specific capacity of 643 mAh g(-1) at 0.5 A g(-1) over 150 cycles. Furthermore, another series of tin-based composites have also been successfully fabricated (i.e., Sn/C, SnS2/C, SnSe2/C, and SnTe/C), showing the general applicability of the synthetic route applied here. Our synthetic approach demonstrates a promising route for the large-scale production of high-performance tin chalcogenides/C anode materials for LIBs and other battery systems (e.g., Na-ion and K-ion batteries).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据