title: Graphite-Nanoplate-Coated Bi2 S3 Composite with High-Volume Energy Density and Excellent Cycle Life for Room-Temperature Sodium-Sulfide Batteries.
abstract: Graphite-nanoplate-coated Bi2 S3 composite (Bi2 S3 @C) has been prepared by a simple, scalable, and energy-efficient precipitation method combined with ball milling. The Bi2 S3 @C composite was used as the cathode material for sodium-sulfide batteries. It delivered an initial capacity of 550 mAh g(-1) and high stable specific energy in the range of 275-300 Wh kg(-1) at 0.1 C, with an enhanced capacity retention of 69 % over 100 cycles. The unique structure demonstrates superior cycling stability, with a capacity drop of 0.3 % per cycle over 100 cycles, compared with that of bare Bi2 S3 . The sodium storage mechanism of Bi2 S3 was investigated based on ex situ X-ray diffraction and scanning transmission electron microscopy.
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, 2522, Wollongong (Australia).|Dept. of Energy & Materials Engineering, Dongguk University-Seoul, 26, Pil-dong 3-ga, Jung-gu, Seoul 100-715 (Republic of Korea).
authors.forename: Wei-Jie
authors.initials: WJ
authors.lastname: Li
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, 2522, Wollongong (Australia).
authors.forename: Chao
authors.initials: C
authors.lastname: Han
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, 2522, Wollongong (Australia). shulei@uow.edu.au, dake1234@dongguk.edu.|Dept. of Energy & Materials Engineering, Dongguk University-Seoul, 26, Pil-dong 3-ga, Jung-gu, Seoul 100-715 (Republic of Korea). shulei@uow.edu.au, dake1234@dongguk.edu.
authors.forename: Shu-Lei
authors.initials: SL
authors.lastname: Chou
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, 2522, Wollongong (Australia).
authors.forename: Jia-Zhao
authors.initials: JZ
authors.lastname: Wang
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, 2522, Wollongong (Australia). zhenli@suda.edu.cn.|School of Radiation Medicine and Radiation Protection, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 199 Ren Ai Road, Suzhou Industrial Park, Suzhou 215123 (China). zhenli@suda.edu.cn.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Li
authors.affiliation: Dept. of Energy & Materials Engineering, Dongguk University-Seoul, 26, Pil-dong 3-ga, Jung-gu, Seoul 100-715 (Republic of Korea).
authors.forename: Yong-Mook
authors.initials: YM
authors.lastname: Kang
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, 2522, Wollongong (Australia).
authors.forename: Hua-Kun
authors.initials: HK
authors.lastname: Liu
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, 2522, Wollongong (Australia).
authors.forename: Shi-Xue
authors.initials: SX
authors.lastname: Dou
keywords: batteries; bismuth; carbon; composite materials; sodium; sulfur