An ultrathin and highly efficient interlayer for lithium-sulfur batteries with high sulfur loading and lean electrolyte

doi:10.1039/d1ta10444f

CORC > 金属研究所 > 中国科学院金属研究所

	An ultrathin and highly efficient interlayer for lithium-sulfur batteries with high sulfur loading and lean electrolyte
	Fan, Xialu 4,5; Liu, Yingqi 1; Tan, Junyang 1; Yang, Shan 4,6; Zhang, Xiaoyin 4,5; Liu, Bilu 1; Cheng, Huiming 2,4; Sun, Zhenhua 4,5; Li, Feng 3,4,5
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2022-01-29
页码	7
ISSN号	2050-7488
DOI	10.1039/d1ta10444f
通讯作者	Sun, Zhenhua(zhsun@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
英文摘要	Lithium-sulfur (Li-S) batteries are considered to have great potential due to their high theoretical specific energy and natural abundance of sulfur. However, the practical specific energy and cycle life of Li-S pouch cells are significantly hindered by thin sulfur cathodes, flooded electrolytes and excess Li metal anodes. Here, an ultrathin and highly efficient boron nitride/single-wall carbon nanotube (BN/SWCNT) interlayer (UHEI) achieves excellent Li-S pouch cell performance with high sulfur loading and a lean electrolyte. Compared with the reported interlayer materials, the UHEI can not only hinder the diffusion of polysulfides, but also promote further redox reactions and allow Li+ to pass through easily. Meanwhile, this UHEI can significantly improve lean electrolyte performance (E/S ratio of 8 mu L mg(-1)) and both high and low plateau capacities of Li-S batteries with a high sulfur loading (10 mg cm(-2)). Moreover, a normalized "ratio of the areal loading interlayer to sulfur (I/S)" was proposed and two "interlayer efficiency index (IEI)" were obtained by using I/S to quantify the efficiency of interlayers at a certain current density and guide the design of high-efficiency interlayers. The IEI of our UHEI@PP is dozens of times higher than previously reported results. Li-S cells with UHEI@PP delivered a remarkable discharge capacity of 6.6 mA h cm(-2) after 100 cycles at 0.2C for pouch cells (4.1 mg cm(-2) per side, E/S ratio of 10 mu L mg(-1)). The work provides new insights into separator modification for the practical application of lithium-sulfur batteries in the future.
资助项目	National Natural Science Foundation of China[52020105010] ; National Natural Science Foundation of China[51972313] ; Strategic Priority Research Program of Chinese Academy of Science[XDA22010602] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y201942] ; Liaoning Revitalization Talents Program[XLYC1908015] ; Liaoning Revitalization Talents Program[XLYC2007080] ; DNL Cooperation Fund, CAS[DNL202019]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000754010200001
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Science ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Liaoning Revitalization Talents Program ; DNL Cooperation Fund, CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173447]
专题	金属研究所_中国科学院金属研究所
通讯作者	Sun, Zhenhua; Li, Feng
作者单位	1.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Shenzhen Int Grad Sch, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China 3.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 5.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 6.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China
推荐引用方式 GB/T 7714	Fan, Xialu,Liu, Yingqi,Tan, Junyang,et al. An ultrathin and highly efficient interlayer for lithium-sulfur batteries with high sulfur loading and lean electrolyte[J]. JOURNAL OF MATERIALS CHEMISTRY A,2022:7.
APA	Fan, Xialu.,Liu, Yingqi.,Tan, Junyang.,Yang, Shan.,Zhang, Xiaoyin.,...&Li, Feng.(2022).An ultrathin and highly efficient interlayer for lithium-sulfur batteries with high sulfur loading and lean electrolyte.JOURNAL OF MATERIALS CHEMISTRY A,7.
MLA	Fan, Xialu,et al."An ultrathin and highly efficient interlayer for lithium-sulfur batteries with high sulfur loading and lean electrolyte".JOURNAL OF MATERIALS CHEMISTRY A (2022):7.