Conductive Fe2N/N-rGO composite boosts electrochemical redox reactions in wide temperature accommodating lithium-sulfur batteries

doi:10.1016/j.cej.2021.131622

CORC > 金属研究所 > 中国科学院金属研究所

	Conductive Fe2N/N-rGO composite boosts electrochemical redox reactions in wide temperature accommodating lithium-sulfur batteries
	Wang, Xin 1; Wang, Dashuai 2; Ma, Chenhui 1; Yang, Zhenzhen 1,3; Yue, Huijuan 4; Zhang, Dong 1; Sun, Zhenhua 3
刊名	CHEMICAL ENGINEERING JOURNAL
	2022
卷号	427 页码:10
关键词	Li-S batteries Separator Metal nitride Catalysis Wide temperature Reaction kinetics
ISSN号	1385-8947
DOI	10.1016/j.cej.2021.131622
通讯作者	Yue, Huijuan(huijuan@jlu.edu.cn) ; Zhang, Dong(dongzhang@jlu.edu.cn) ; Sun, Zhenhua(zhsun@imr.ac.cn)
英文摘要	Lithium-sulfur (Li-S) batteries suffer from shuttle effect and slow redox kinetics during cycling, leading to poor performance. Especially, these problems are magnified in wide temperatures, which limit the practical application of Li-S batteries. The application of transition metal with chemisorption and catalysis is an effective strategy to capture the polysulfides and accelerate the conversion rate. Herein, a novel separator modified by iron nitride nanoparticles that evenly dispersed on N-doped graphene (Fe2N/N-rGO) is presented. Fe2N as active catalytic sites reduce the decomposition barrier of lithium sulfide and facilitate the conversion kinetics between lithium polysulfide and lithium sulfide, which improves electrochemical performance. Fe2N still plays a role in speeding up the reaction kinetics at low temperatures, and inhibiting the shuttle of polysulfides at high temperatures. Accordingly, the assembled cells containing Fe2N/N-rGO achieve a long cycle life (average fading of 0.05% per cycle at 1C for 700 cycles) and high rate performance (688 mAh g-1 at 5C). More importantly, the cells deliver high capacity with 1043 mA h g-1 and 778 mA h g-1 at 50 degrees C and 0 degrees C, respectively. The work provides a broader idea for the practical application of lithium-sulfur batteries in the future.
资助项目	National Natural Science Foundation of China[21771086] ; S&T Development Program of Jilin Province[20160101320JC] ; S&T Development Program of Jilin Province[20180101293JC] ; Jilin Provincial Department of Education 13th Five-Year scientific research project[JJKH20211034KJ]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000729988900003
资助机构	National Natural Science Foundation of China ; S&T Development Program of Jilin Province ; Jilin Provincial Department of Education 13th Five-Year scientific research project
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/167283]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yue, Huijuan; Zhang, Dong; Sun, Zhenhua
作者单位	1.Jilin Univ, Coll Phys, Key Lab Phys & Technol Adv Batteries, Minist Educ, Changchun 130012, Peoples R China 2.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Shenzhen Int Grad Sch, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xin,Wang, Dashuai,Ma, Chenhui,et al. Conductive Fe2N/N-rGO composite boosts electrochemical redox reactions in wide temperature accommodating lithium-sulfur batteries[J]. CHEMICAL ENGINEERING JOURNAL,2022,427:10.
APA	Wang, Xin.,Wang, Dashuai.,Ma, Chenhui.,Yang, Zhenzhen.,Yue, Huijuan.,...&Sun, Zhenhua.(2022).Conductive Fe2N/N-rGO composite boosts electrochemical redox reactions in wide temperature accommodating lithium-sulfur batteries.CHEMICAL ENGINEERING JOURNAL,427,10.
MLA	Wang, Xin,et al."Conductive Fe2N/N-rGO composite boosts electrochemical redox reactions in wide temperature accommodating lithium-sulfur batteries".CHEMICAL ENGINEERING JOURNAL 427(2022):10.