Cobalt-doped pyrite for Na11Sn2SbS11.5Se0.5 electrolyte based all-solid-state sodium battery with enhanced capacity

doi:10.1016/j.jpowsour.2019.227515

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	Cobalt-doped pyrite for Na11Sn2SbS11.5Se0.5 electrolyte based all-solid-state sodium battery with enhanced capacity
	Wan, Hongli; Cai, Liangting; Weng, Wei; Mwizerwa, Jean Pierre; Yang, Jing; Yao, Xiayin
刊名	JOURNAL OF POWER SOURCES
	2020
卷号	449
关键词	LITHIUM BATTERIES SULFIDE CONDUCTOR SULFUR ANODE
DOI	10.1016/j.jpowsour.2019.227515
英文摘要	The ionic conductivity and electrochemical stability of the electrolyte layer as well as the capacity of cathode material play pivotal roles for enhancing the electrochemical performances of all-solid-state sodium batteries. Herein, Na11Sn2SbS11.5Se0.5 solid electrolyte with ionic conductivity of 6.6 x 10(-4) S cm(-1) is synthesized. Meanwhile, Na11Sn2SbS11.5Se0.5-Na3PS4 electrolyte bilayer is employed to address the unstability of Na11Sn2SbS11.5Se0.5 against sodium. Moreover, the optimized Co0.1Fe0.9S2 is used as cathode to further improve the capacity of the all-solid-state sodium batteries. Thus, the as-generated Co0.1Fe0.9S2/Na11Sn2SbS11.5Se0.5Na3PS4/Na all-solid-state sodium battery exhibits high reversible capacity of 383.5 mAh g(-1) after cycling at 20 mA g(-1) for 30 cycles, enhanced rate capability with capacities of 454.6, 405.3, 256.6 and 115.7 mAh g(-1) at 20, 50, 100 and 200 mA g(-1) after the first activation cycle, respectively, and improved high rate cycling stability with capacity of 159.8 mAh g(-1) after cycling at 100 mA g(-1) for 100 cycles.
学科主题	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19969]
专题	2020专题
作者单位	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,Weng, Wei,et al. Cobalt-doped pyrite for Na11Sn2SbS11.5Se0.5 electrolyte based all-solid-state sodium battery with enhanced capacity[J]. JOURNAL OF POWER SOURCES,2020,449.
APA	Wan, Hongli,Cai, Liangting,Weng, Wei,Mwizerwa, Jean Pierre,Yang, Jing,&Yao, Xiayin.(2020).Cobalt-doped pyrite for Na11Sn2SbS11.5Se0.5 electrolyte based all-solid-state sodium battery with enhanced capacity.JOURNAL OF POWER SOURCES,449.
MLA	Wan, Hongli,et al."Cobalt-doped pyrite for Na11Sn2SbS11.5Se0.5 electrolyte based all-solid-state sodium battery with enhanced capacity".JOURNAL OF POWER SOURCES 449(2020).