Clustered-Microcapsule-Shaped Microporous Carbon-Coated Sulfur Composite Synthesized via in Situ Oxidation

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	Clustered-Microcapsule-Shaped Microporous Carbon-Coated Sulfur Composite Synthesized via in Situ Oxidation
	Li, Chao; Wang, Qian; Liu, Honghong; Li, Rongrong; Yang, Minghui; Wang, Zhen-Bo; Zhang, Limei; Gu, Da-Ming
刊名	ACS APPLIED MATERIALS & INTERFACES
	2017
卷号	9 期号:51 页码:44512-44518
关键词	Li-s Batteries Lithium-ion Batteries High-performance Hollow Carbon Metal-oxide Polysulfide Mediator Spheres Shell Nanocages Cathodes
英文摘要	Hollow materials as sulfur hosts have been intensively investigated to address the poor cycling stabilities of Li-S batteries. Herein, we report an enhanced hollow framework to improve the applicability of the sulfur confinement. A clustered-microcapsule-shaped microporous carbon coated sulfur (CM-S@MPC) composite is prepared from the clustered zinc sulfide precursor, through an in situ oxidation process. The high specific surface area and the in situ preparation guarantee the uniform distribution of sulfur inside the carbon microcapsule, even under a higher sulfur content of 83 wt %. In addition, the interconnected frame constructed by the stacking of carbon microcapsules also mitigates the lithium polysulfide loss by setting interlayered hurdles on their pathway along the outward diffusion. Hence, these enable a full demonstration of excellent cycling stability, compared to the control sample obtained via physical sulfur infiltration. The outstanding decay rate of 0.039% per cycle is achieved during 700 cycles at 1 C, even under high sulfur loading.
学科主题	Polymer Science
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17481]
专题	2017专题
推荐引用方式 GB/T 7714	Li, Chao,Wang, Qian,Liu, Honghong,et al. Clustered-Microcapsule-Shaped Microporous Carbon-Coated Sulfur Composite Synthesized via in Situ Oxidation[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(51):44512-44518.
APA	Li, Chao.,Wang, Qian.,Liu, Honghong.,Li, Rongrong.,Yang, Minghui.,...&Gu, Da-Ming.(2017).Clustered-Microcapsule-Shaped Microporous Carbon-Coated Sulfur Composite Synthesized via in Situ Oxidation.ACS APPLIED MATERIALS & INTERFACES,9(51),44512-44518.
MLA	Li, Chao,et al."Clustered-Microcapsule-Shaped Microporous Carbon-Coated Sulfur Composite Synthesized via in Situ Oxidation".ACS APPLIED MATERIALS & INTERFACES 9.51(2017):44512-44518.