CoSe2-modified N-doped carbon polyhedron composites containing carbon nanotubes as effective anchors for lithium polysulfides

Jia, Baorui1; Wang, He1; Zhang, Jihui1; Liu, Weiliang1; Yao, Jinshui1; Ren, Manman1; Wang, Yuanhao2

2023-04-01

10.1007/s10854-023-10388-9

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS   影响因子和分区

0957-4522

1573-482X

The slow electrochemical dynamics, shuttle of lithium polysulfides (LiPSs) and uncontrollable growth of Li dendrite seriously affect the cycling performance of Li-S batteries (LSBs). Herein, CoSe2-modified N-doped carbon polyhedron composites containing carbon nanotubes (CoSe2@NC-CNT) were successfully prepared and used as a sulfur host for LSBs. The CoSe2@NC-CNT can limit the volume expansion, inhibit the shuttle of LiPSs, and improve the electronic conductivity of sulfur cathode. The CoSe2@NC-CNT/S electrode delivered excellent electrochemical performance, it can maintain a specific capacity of 428 mAh/g at 1 C after 500 cycles. Even at 3 C, a high specific capacity of 713 mAh/g can be obtained. This work provides a new idea for the research of high performance sulfur cathodes for LSBs.

SCI ; EI

英语

通讯

Natural Science Foundation of Shandong Province["ZR2022ME062","ZR2021QE175"] ; Youth Innovation and Technology Program of Higher Education in Shandong[2019KJA015]

Engineering ; Materials Science ; Physics

Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000970632800006

SPRINGER

20231714004314

Carbon nanotubes ; Cathodes ; Doping (additives) ; Geometry ; Lithium batteries ; Lithium compounds ; Lithium sulfur batteries

Primary Batteries:702.1.1 ; Secondary Batteries:702.1.2 ; Nanotechnology:761 ; Organic Polymers:815.1.1 ; Synthetic Rubber:818.2.1 ; Mathematics:921 ; Crystalline Solids:933.1

MATERIALS SCIENCE

Web of Science

1.Qilu Univ Technol, ShandongAcad Sci, Sch Mat Sci & Engn, Jinan 250353, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, SUSTech Engn Innovat Ctr, Shenzhen 518055, Peoples R China

Jia, Baorui,Wang, He,Zhang, Jihui,et al. CoSe2-modified N-doped carbon polyhedron composites containing carbon nanotubes as effective anchors for lithium polysulfides[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2023,34(11).

Jia, Baorui.,Wang, He.,Zhang, Jihui.,Liu, Weiliang.,Yao, Jinshui.,...&Wang, Yuanhao.(2023).CoSe2-modified N-doped carbon polyhedron composites containing carbon nanotubes as effective anchors for lithium polysulfides.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,34(11).

Jia, Baorui,et al."CoSe2-modified N-doped carbon polyhedron composites containing carbon nanotubes as effective anchors for lithium polysulfides".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 34.11(2023).