Cited 6 time in webofscience Cited 6 time in scopus

Comparative study of fluoroethylene carbonate and succinic anhydride as electrolyte additive for hard carbon anodes of Na-ion batteries

Title
Comparative study of fluoroethylene carbonate and succinic anhydride as electrolyte additive for hard carbon anodes of Na-ion batteries
Authors
Kim, Dong-HuiKang, ByungsunLee, Hochun
DGIST Authors
Kim, Dong-Hui; Kang, Byungsun; Lee, Hochun
Issue Date
2019-05
Citation
Journal of Power Sources, 423, 137-143
Type
Article
Article Type
Article
Author Keywords
Sodium batteryHard carbonSolid electrolyte interphaseSuccinic anhydrideFluoroethylene carbonateSymmetric cell
Keywords
LITHIUM-IONELECTROCHEMICAL PERFORMANCENEGATIVE ELECTRODEHIGH-CAPACITYGRAPHITEPHOSPHORUSINTERPHASESYSTEMSLAYERFEC
ISSN
0378-7753
Abstract
Hard carbon is the most popular anode material for Na-ion batteries, but its long-term reliability has still to be further improved. We herein examine fluoroethylene carbonate and succinic anhydride as electrolyte additives for improving the cycle performance of hard carbon anodes. For a proper evaluation, hard carbon symmetric cells as well as hard carbon/Na half-cells are employed to discriminate the influence of the additives on the hard carbon and Na electrodes. We confirm that fluoroethylene carbonate hardly improves the cyclability of hard carbon symmetric cells, but it does enable far better cycle behavior of Na metal, and thus improves the cycle performance of hard carbon/Na half-cells by mitigating the degradation of the hard carbon anodes caused by harmful products derived from Na metal. In contrast, succinic anhydride markedly improves the performance of hard carbon symmetric cells in the cycle and storage tests at 60 °C. The superior thermal stability of succinic anhydride is attributed to a Na 2 CO 3 /sodium alkyl carbonates-rich solid-electrolyte interphase layer formed on the hard carbon surface, as evidenced by X-ray photoelectron spectroscopy measurements. © 2019 Elsevier B.V.
URI
http://hdl.handle.net/20.500.11750/9834
DOI
10.1016/j.jpowsour.2019.03.047
Publisher
Elsevier BV
Related Researcher
  • Author Lee, Hochun Electrochemistry Laboratory for Sustainable Energy(ELSE)
  • Research Interests Lithium-ion batteries; Novel Materials for rechargeable batteries; Novel energy conversion;storage systems; Electrochemistry; 리튬이차전지; 이차전지용 신규 전극 및 전해액; 신규 에너지변환 및 저장 시스템; 전기화학
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringElectrochemistry Laboratory for Sustainable Energy(ELSE)1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE