CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Improved electrode performance of mesoporous beta-In2S3 microspheres for lithium ion batteries using carbon coated microspheres
Li, Guang; Liu, Huajie
2011
Source PublicationJOURNAL OF MATERIALS CHEMISTRY
ISSN0959-9428
Volume21Issue:45Pages:18398
AbstractMesoporous structure and carbon coating are two important techniques for improving electrode performance for Li ion batteries. The combining of these two techniques in one system offers a new strategy for producing new high-performance electrode materials. Here, we demonstrate a two-step method for preparing carbon coated mesoporous beta-In2S3 microspheres. The mesoporous beta-In2S3 microspheres were synthesized through a solvothermal route, with the assistance of surfactant poly (vinyl pyrrolidone). After treating with glucose in a hydrothermal condition and calcinating under an inert atmosphere, mesoporous beta-In2S3@C microspheres were obtained. Electron microscope and nitrogen absorption studies showed that the sample maintained microsphere morphology and mesoporous structure after carbon treating, but an amorphous carbon layer with a thickness of 8 nm could be found on the surface. Both beta-In2S3 and beta-In2S3@C mesoporous microspheres exhibited remarkable Li storage performance at the initial charge and discharge cycle. Compared with reported beta-In2S3 microspheres without porous structure, the mesoporous beta-In2S3 microspheres showed limited improvement on electrode performance. Furthermore, the carbon coating greatly improved the Li intercalation-deintercalation cycling behaviour. The specific capacity of mesoporous beta-In2S3@C microspheres was almost unchanged after the 5th cycle and was more than three times higher than that of mesoporous beta-In2S3 microspheres after 50 cycles. We suggested that the mesoporous structure and carbon coating together exhibited a better "buffering" effect for compensating volume changes and enhancing the reversibility of electrode reactions.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000296735900040
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/9523
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Li, Guang,Liu, Huajie. Improved electrode performance of mesoporous beta-In2S3 microspheres for lithium ion batteries using carbon coated microspheres[J]. JOURNAL OF MATERIALS CHEMISTRY,2011,21(45):18398.
APA Li, Guang,&Liu, Huajie.(2011).Improved electrode performance of mesoporous beta-In2S3 microspheres for lithium ion batteries using carbon coated microspheres.JOURNAL OF MATERIALS CHEMISTRY,21(45),18398.
MLA Li, Guang,et al."Improved electrode performance of mesoporous beta-In2S3 microspheres for lithium ion batteries using carbon coated microspheres".JOURNAL OF MATERIALS CHEMISTRY 21.45(2011):18398.
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