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Interfacial reinforcement structure design towards ultrastable lithium storage in MoS2-based composited electrode
Cao,Chunyan1,2; Dong,Huilong3; Liang,Fanghua1; Zhang,Yu1; Zhang,Wei1; Wang,Hailou1; Shao,Huaiyu4; Liu,Hongchao4; Dong,Kai5; Tang,Yuxin6; Lai,Yuekun6; Ge,Mingzheng1
2021-07-15
Source PublicationChemical Engineering Journal
ISSN1385-8947
Volume416
AbstractHuge volume expansion and inferior electrical conductivity are the two main obstacles to limit the practical applications of high-capacity molybdenum disulfide (MoS) materials, which has been recognized as ideal anode materials for rechargeable lithium-ion batteries. Herein, an interfacial reinforcement structure design is proposed by conformally growing few-layered MoS nanosheets on carbon coated ultralong TiO nanotubes (TiO@C@MoS) to stabilize the solid electrolyte interface (SEI) of MoS-based electrode. The interlayer carbon coating on TiO nanotubes effectively improves the interfacial contact between MoS nanosheets and TiO nanotubes by forming Ti-O-C and C-S chemical bonds between TiO/carbon coating and MoS/carbon coating, respectively, avoiding MoS nanosheets detaching from TiO nanotubes. Meanwhile, the carbon coating serves as a buffering cushion to alleviate mechanical strain at the interface of MoS nanosheets and TiO nanotubes. Besides, it enhances the adsorption performance of Li ions on the surface of MoS and at the interface sites between MoS and TiO. While three-dimensional rigid TiO nanotubes networks work as mechanical support to suppress reaggregating and restacking of MoS nanosheets, and provide fast transportation expressways for electrons/ions. Thus, the TiO@C@MoS electrode exhibits ultrafast charge/discharge capability, a high reversible capacity of 1150 mAh g at 0.1 A g, and superior cycling performance with 90% capacity retention after 1500 cycles at 1.0 A g. This interfacial reinforcement structure design provides valuable experience to benefit rational design of alloy/conversion-typed materials electrode with high-performance.
KeywordInterfacial reinforcement Lithium-ion battery MoS2 nanosheets Solid-electrolyte interfaces TiO2 nanotubes
DOI10.1016/j.cej.2021.129094
URLView the original
Language英语
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Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorTang,Yuxin
Affiliation1.School of Textile and Clothing,Nantong University,Nantong,226019,China
2.Department of Biomedical Sciences,City University of Hong Kong,Hong Kong,999077,Hong Kong
3.School of Materials Engineering,Changshu Institute of Technology,Changshu,215500,China
4.Institute of Applied Physics and Materials Engineering,University of Macau,Macau,999078,China
5.Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing,100083,China
6.College of Chemical Engineering,Fuzhou University,Fuzhou,350116,China
Recommended Citation
GB/T 7714
Cao,Chunyan,Dong,Huilong,Liang,Fanghua,et al. Interfacial reinforcement structure design towards ultrastable lithium storage in MoS2-based composited electrode[J]. Chemical Engineering Journal,2021,416.
APA Cao,Chunyan,Dong,Huilong,Liang,Fanghua,Zhang,Yu,Zhang,Wei,Wang,Hailou,Shao,Huaiyu,Liu,Hongchao,Dong,Kai,Tang,Yuxin,Lai,Yuekun,&Ge,Mingzheng.(2021).Interfacial reinforcement structure design towards ultrastable lithium storage in MoS2-based composited electrode.Chemical Engineering Journal,416.
MLA Cao,Chunyan,et al."Interfacial reinforcement structure design towards ultrastable lithium storage in MoS2-based composited electrode".Chemical Engineering Journal 416(2021).
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