Unraveling the Coupling Effect between Cathode and Anode toward Practical Lithium-Sulfur Batteries

doi:10.1002/adma.202303610

IMR OpenIR

	Unraveling the Coupling Effect between Cathode and Anode toward Practical Lithium-Sulfur Batteries
	Gao, Runhua 1,2; Zhang, Mengtian 1,2; Han, Zhiyuan 1,2; Xiao, Xiao 1,2; Wu, Xinru 1,2; Piao, Zhihong 1,2; Lao, Zhoujie 1,2; Nie, Lu 1,2; Wang, Shaogang 3; Zhou, Guangmin 1,2
通讯作者	Zhou, Guangmin(guangminzhou@sz.tsinghua.edu.cn)
	2023-11-12
发表期刊	ADVANCED MATERIALS
ISSN	0935-9648
页码	14
摘要	The localized reaction heterogeneity of the sulfur cathode and the uneven Li deposition on the Li anode are intractable issues for lithium-sulfur (Li-S) batteries under practical operation. Despite impressive progress in separately optimizing the sulfur cathode or Li anode, a comprehensive understanding of the highly coupled relationship between the cathode and anode is still lacking. In this work, inspired by the Butler-Volmer equation, a binary descriptor (IBD) assisting the rational structural design of sulfur cathode by simultaneously considering the mass-transport index (Imass) and the charge-transfer index (Icharge) is identified, and subsequently the relationship between IBD and the morphological evolution of Li anode is established. Guided by the IBD, a scalable electrode providing interpenetrated flow channels for efficient mass/charge transfer, full utilization of active sulfur, and mechanically elastic support for aggressive electrochemical reactions under practical conditions is reported. These characteristics induce a homogenous distribution of local current densities and reduced reaction heterogeneity on both sides of the cathode and anode. Impressive energy density of 318 Wh kg-1 and 473 Wh L-1 in an Ah-level pouch cell can be achieved by the design concept. This work offers a promising paradigm for unlocking the interaction between cathode and anode and designing high-energy practical Li-S batteries. The Butler-Volmer equation fundamentally describes the relationship between electrode overpotential and local current densities. Inspired by the equation, a binary descriptor (IBD) is proposed to guide the design of sulfur cathodes. This descriptor can evaluate the influence of mass transport and charge transfer on reaction kinetics, and unravel the coupling effect between sulfur cathode and Li anode.image
关键词	binary descriptors coupling effect practical Li-S batteries reaction heterogeneity scalable electrodes
资助者	The authors appreciate the support from the National Key Research and Development Program of China (2019YFA0705703), the Joint Funds of the National Natural Science Foundation of China (U21A20174), the National Natural Science Foundation of China (no. 5207 ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; Shenzhen Science and Technology Program ; Guangdong Innovative and Entrepreneurial Research Team Program ; Overseas Research Cooperation Fund of Tsinghua Shenzhen International Graduate School
DOI	10.1002/adma.202303610
收录类别	SCI
语种	英语
资助项目	The authors appreciate the support from the National Key Research and Development Program of China (2019YFA0705703), the Joint Funds of the National Natural Science Foundation of China (U21A20174), the National Natural Science Foundation of China (no. 5207[2019YFA0705703] ; National Key Research and Development Program of China[52072205] ; National Natural Science Foundation of China[KQTD20210811090112002] ; Shenzhen Science and Technology Program[2021ZT09L197] ; Guangdong Innovative and Entrepreneurial Research Team Program ; Overseas Research Cooperation Fund of Tsinghua Shenzhen International Graduate School
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001100583300001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177463
专题	中国科学院金属研究所
通讯作者	Zhou, Guangmin
作者单位	1.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China 2.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China 3.Inst Met Sci & Technol, Chinese Acad Sci, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Gao, Runhua,Zhang, Mengtian,Han, Zhiyuan,et al. Unraveling the Coupling Effect between Cathode and Anode toward Practical Lithium-Sulfur Batteries[J]. ADVANCED MATERIALS,2023:14.
APA	Gao, Runhua.,Zhang, Mengtian.,Han, Zhiyuan.,Xiao, Xiao.,Wu, Xinru.,...&Zhou, Guangmin.(2023).Unraveling the Coupling Effect between Cathode and Anode toward Practical Lithium-Sulfur Batteries.ADVANCED MATERIALS,14.
MLA	Gao, Runhua,et al."Unraveling the Coupling Effect between Cathode and Anode toward Practical Lithium-Sulfur Batteries".ADVANCED MATERIALS (2023):14.