Binary graphene-based cathode structure for high-performance lithium-sulfur batteries

doi:10.1088/2515-7655/ab5997

IMR OpenIR

	Binary graphene-based cathode structure for high-performance lithium-sulfur batteries
	Fang, Ruopian; Zhao, Shiyong; Chen, Ke; Wang, Da-Wei; Li, Feng
	2020
Source Publication	JOURNAL OF PHYSICS-ENERGY
Volume	2 Issue:1
Abstract	Lithium-sulfur (Li-S) batteries are highly appealing for the next-generation of energy storage because of their high energy density and low-cost features. However, the practical implementation of Li-S batteries has been hindered by fast performance degradation of the sulfur cathode, especially at a high cathode loading. Here, we propose a strategic design of binary graphene foam (BGF) as the cathode scaffold, with the incorporation of nitrogen-doped graphene and highly porous graphene. The nitrogen-doped graphene provides chemical adsorption sites for migrating polysulfides, and the highly porous graphene could increase the cathode conductivity and accelerate lithium ion transport. The freestanding foam-like cathode structure further offers a robust, interconnected, conductive framework to promote the redox reaction even at a high cathode loading. Therefore, the Li-S battery with the S/BGF electrode exhibits a high specific areal capacity over 10 mAh cm(-2) and good cycling stability over 300 cycles. This approach offers insights into multifunctional electrode structure design, with targeted functions for high-performance Li-S batteries.
DOI	10.1088/2515-7655/ab5997
WOS ID	WOS:000571495800003
Citation statistics
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/83257
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Fang, Ruopian,Zhao, Shiyong,Chen, Ke,et al. Binary graphene-based cathode structure for high-performance lithium-sulfur batteries[J]. JOURNAL OF PHYSICS-ENERGY,2020,2(1).
APA	Fang, Ruopian,Zhao, Shiyong,Chen, Ke,Wang, Da-Wei,&Li, Feng.(2020).Binary graphene-based cathode structure for high-performance lithium-sulfur batteries.JOURNAL OF PHYSICS-ENERGY,2(1).
MLA	Fang, Ruopian,et al."Binary graphene-based cathode structure for high-performance lithium-sulfur batteries".JOURNAL OF PHYSICS-ENERGY 2.1(2020).

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