Self-Formed Electronic/Ionic Conductive Fe3S4 (R) S (R) 0.9Na(3)SbS(4).0.1NaI Composite for High-Performance Room-Temperature All-Solid-State Sodium-Sulfur Battery

doi:10.1002/smll.202001574

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	Self-Formed Electronic/Ionic Conductive Fe3S4 (R) S (R) 0.9Na(3)SbS(4).0.1NaI Composite for High-Performance Room-Temperature All-Solid-State Sodium-Sulfur Battery
	Wan, Hongli ; Cai, Liangting ; Yao, Yu ; Weng, Wei ; Feng, Yuezhan ; Mwizerwa, Jean Pierre ; Liu, Gaozhan ; Yu, Yan ; Yao, Xiayin
刊名	SMALL
	2020
卷号	16 期号:34
关键词	CARBON
DOI	10.1002/smll.202001574
英文摘要	Fe3S4 (R) S (R) 0.9Na(3)SbS(4).0.1NaI composite cathode is prepared through one-step wet-mechanochemical milling procedure. During milling process, ionic conduction pathway is self-formed in the composite due to the formation of 0.9Na(3)SbS(4).0.1NaI electrolyte without further annealing treatment. Meanwhile, the introduction of Fe(3)S(4)can increase the electronic conductivity of the composite cathode by one order of magnitude and nearly double enhance the ionic conductivities. Besides, the aggregation of sulfur is effectively suppressed in the obtained Fe3S4 (R) S (R) 0.9Na(3)SbS(4).0.1NaI composite, which will enhance the contact between sulfur and 0.9Na(3)SbS(4).0.1NaI electrolyte, leading to a decreased interfacial resistance and improving the electrochemical kinetics of sulfur. Therefore, the resultant all-solid-state sodium-sulfur battery employing Fe3S4 (R) S (R) 0.9Na(3)SbS(4).0.1NaI composite cathode shows discharge capacity of 808.7 mAh g(-1)based on Fe3S4(R)S and a normalized discharge capacity of 1040.5 mAh g(-1)for element S at 100 mA g(-1)for 30 cycles at room temperature. Moreover, the battery also exhibits excellent cycling stability with a reversible capacity of 410 mAh g(-1)at 500 mA g(-1)for 50 cycles, and superior rate capability with capacities of 952.4, 796.7, 513.7, and 445.6 mAh g(-1)at 50, 100, 200, and 500 mA g(-1), respectively. This facile strategy for sulfur-based composite cathode is attractive for achieving room-temperature sodium-sulfur batteries with superior electrochemical performance.
学科主题	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20642]
专题	2020专题
作者单位	1.Yu, Y (corresponding author), Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei Natl Lab Phys Sci Microscale, CAS Key Lab Mat Energy Convers, Hefei 230026, Peoples R China. 2.Yu, Y (corresponding author), Chinese Acad Sci, Dalian Natl Lab Clean Energy DNL, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China. 3.Yao, XY (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 4.Yao, XY (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China.
推荐引用方式 GB/T 7714	Wan, Hongli,Cai, Liangting,Yao, Yu,et al. Self-Formed Electronic/Ionic Conductive Fe3S4 (R) S (R) 0.9Na(3)SbS(4).0.1NaI Composite for High-Performance Room-Temperature All-Solid-State Sodium-Sulfur Battery[J]. SMALL,2020,16(34).
APA	Wan, Hongli.,Cai, Liangting.,Yao, Yu.,Weng, Wei.,Feng, Yuezhan.,...&Yao, Xiayin.(2020).Self-Formed Electronic/Ionic Conductive Fe3S4 (R) S (R) 0.9Na(3)SbS(4).0.1NaI Composite for High-Performance Room-Temperature All-Solid-State Sodium-Sulfur Battery.SMALL,16(34).
MLA	Wan, Hongli,et al."Self-Formed Electronic/Ionic Conductive Fe3S4 (R) S (R) 0.9Na(3)SbS(4).0.1NaI Composite for High-Performance Room-Temperature All-Solid-State Sodium-Sulfur Battery".SMALL 16.34(2020).