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N-doped carbon-coated Tin sulfide/graphene nanocomposite for enhanced lithium storage
Ma, Tiantian; Sun, Li; Niu, Qun; Xu, Yinghao; Zhu, Kangle; Liu, Xianghong; Guo, Xiangxin; Zhang, Jun
2019-03-20
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume300Pages:131
SubtypeArticle
AbstractTin sulfides have attracted significant interests as the anode materials of lithium-ion batteries (LIBs) due to their high capacity and layered structure. However, metal sulfides suffer from a fast capacity decay caused by the large volume change during cycling, and poor conductivity. In this work, we report on a rational design of lamellar nanostructure consisting of N-doped carbon layers, graphene nanosheets, and SnS nanoparticles. The SnS/graphene nanosheets with and without N-carbon coating have been investigated as the anode for LIBs to study the structure effect. It is found that N-carbon/SnS/graphene nanosheets deliver a high reversible capacity of 840 mA h g(-1) after 150 cycles at a current density of 100 mA g(-1) and higher rate properties in comparison to SnS/graphene. The improved electrochemical performances are attributed to the special lamellar structure with a combined synergic effect derived from the N-carbon coating layers and graphene nanosheets, which conduce to a faster lithium diffusion dynamics in the composite nanosheets, which has been analyzed by electrochemical impedance spectroscopy. This work propose an efficient pathway to manipulate metal sulfides based nanomaterials for use as anodes in LIBs with enhanced lithium storage performances. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordNanosheet Structure design Tin sulfide Graphene Carbon
DOI10.1016/j.electacta.2019.01.104
Language英语
WOS Research AreaElectrochemistry
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27268
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Ma, Tiantian,Sun, Li,Niu, Qun,et al. N-doped carbon-coated Tin sulfide/graphene nanocomposite for enhanced lithium storage[J]. ELECTROCHIMICA ACTA,2019,300:131.
APA Ma, Tiantian.,Sun, Li.,Niu, Qun.,Xu, Yinghao.,Zhu, Kangle.,...&Zhang, Jun.(2019).N-doped carbon-coated Tin sulfide/graphene nanocomposite for enhanced lithium storage.ELECTROCHIMICA ACTA,300,131.
MLA Ma, Tiantian,et al."N-doped carbon-coated Tin sulfide/graphene nanocomposite for enhanced lithium storage".ELECTROCHIMICA ACTA 300(2019):131.
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