Sulfur-Embedded FeS2 as a High-Performance Cathode for Room Temperature All-Solid-State Lithium-Sulfur Batteries

doi:10.1021/acsami.0c01607

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Sulfur-Embedded FeS2 as a High-Performance Cathode for Room Temperature All-Solid-State Lithium-Sulfur Batteries
	Mwizerwa, Jean Pierre ; Zhang, Qiang ; Han, Fudong ; Wan, Hongli ; Cai, Liangting ; Wang, Chunsheng ; Yao, Xiayin
刊名	ACS APPLIED MATERIALS & INTERFACES
	2020
卷号	12 期号:16 页码:18519-18525
关键词	ENERGY DENSITY CATHODE POROUS CARBON ENCAPSULATING SULFUR PYRITE FES2 ELECTROLYTE NANOPARTICLES ION COMPOSITE PROGRESS
DOI	10.1021/acsami.0c01607
英文摘要	All-solid-state lithium-sulfur batteries employing sulfur electrodes and a solid electrolyte at room temperature are still a great challenge owing to the low conductivities of sulfur cathodes. In this work, we report room temperature all-solid-state lithium-sulfur batteries using thin sulfur layer-embedded FeS2 (FeS2@S) microsphere composites as active materials in the FeS2@S-Li10GeP2S12-Super P cathode electrode. Setting the cut-off voltage between 1.5 and 2.8 V, only lithiation-delithiation reactions between L2FeS2 and FeSy and direct reaction between Li2S and S will occur, which avoids large volume change of FeS2 caused by the conversion reaction, leading to the structure integrity of FeS2@S. The resultant batteries exhibit excellent rate and cyclic performances, delivering specific capacities of 1120.9, 937.2, 639.7, 517.2, 361.5, and 307.0 mA h g(-1) for the FeS2@S composite cathode, corresponding to the normalized capacities of 1645.5, 1252.9, 782.5, 700.2, 478.4, and 363.6 mA h g(-1) for sulfur at 30, 50, 100, 500, 1000, and 5000 mA g-1, respectively. Besides, they can retain the normalized capacity of 430.7 mA h g(-1) for sulfur at 1000 mA g(-1) after 200 cycles at room temperature.
学科主题	Science & Technology - Other Topics ; Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19772]
专题	2020专题
作者单位	1.Yao, XY (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 2.Wang, CS (corresponding author), Univ Maryland, Dept Chem & Biomol Engn, Dept Chem & Biochem, College Pk, MD 20742 USA. 3.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	Mwizerwa, Jean Pierre,Zhang, Qiang,Han, Fudong,et al. Sulfur-Embedded FeS2 as a High-Performance Cathode for Room Temperature All-Solid-State Lithium-Sulfur Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(16):18519-18525.
APA	Mwizerwa, Jean Pierre.,Zhang, Qiang.,Han, Fudong.,Wan, Hongli.,Cai, Liangting.,...&Yao, Xiayin.(2020).Sulfur-Embedded FeS2 as a High-Performance Cathode for Room Temperature All-Solid-State Lithium-Sulfur Batteries.ACS APPLIED MATERIALS & INTERFACES,12(16),18519-18525.
MLA	Mwizerwa, Jean Pierre,et al."Sulfur-Embedded FeS2 as a High-Performance Cathode for Room Temperature All-Solid-State Lithium-Sulfur Batteries".ACS APPLIED MATERIALS & INTERFACES 12.16(2020):18519-18525.