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Cited 14 time in webofscience Cited 14 time in scopus
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Ultra-long cycle life of flexible Sn anode using DME electrolyte

Authors
Sadan, Milan K.Kim, HuihunKim, ChanghyeonCho, Gyu-BongCho, Kwon-KooAhn, Jou-HyeonAhn, Hyo-Jun
Issue Date
5-Aug-2021
Publisher
Elsevier BV
Keywords
Sodium-ion batteries; Tin anode; Flexible anode; Full cell; Ether electrolyte
Citation
Journal of Alloys and Compounds, v.871
Indexed
SCIE
SCOPUS
Journal Title
Journal of Alloys and Compounds
Volume
871
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/3380
DOI
10.1016/j.jallcom.2021.159549
ISSN
0925-8388
1873-4669
Abstract
Sodium-ion batteries (SIBs) are highly anticipated energy storage devices due to the low-cost, widely available resources, and similar electrochemical performances with lithium-ion batteries. Even though excellent performances are demonstrated for SIB cathodes, the SIB anodes still need improvement to meet the commercial standards. Tin (Sn) anode is a popular anode that has high prospects but the previous reports show unsatisfactory electrochemical results. Here we demonstrate the excellent electrochemical performance of a flexible Sn anode for SIBs in DME electrolyte for the first time. The spherical Sn particles are embedded on carbon fibers by the facile electrospinning method. The Sn anode delivered a capacity of 661 mAh g(-1) at 0.5 C. Also, the Sn anode delivered exceptional cycling performance up to 30,000 cycles with a negligible capacity degradation of 0.002% per cycle at 25 C. Moreover, a full cell with freestanding Sn anode was assembled for the first time by coupling with Na3V2(PO4)(3) delivers a maximum energy density of 114 Wh kg(-1) and a power density of 3256 W kg(-1) based on the mass of total active materials demonstrating excellent prospects. (C) 2021 Elsevier B.V. All rights reserved.
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Ahn, Jou Hyeon
대학원 (나노신소재융합공학과)
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