Enhancing the stability of silicon nanosheets electrodes by fluoroethylene carbonate

Title
Enhancing the stability of silicon nanosheets electrodes by fluoroethylene carbonate
Authors
조병원김수진하정훈박정민Sung Wook KimJaejun LeeSangwon ParkHeon-Jin Choi
Issue Date
2017-09
Publisher
Chemical physics letters
Citation
VOL 684-389
Abstract
Stabilization of the SEI layer that is formed by consuming active lithium in electrolytes is a critical issue for improving the cyclability of lithium ion batteries. We used SiNSs as anodes and investigated the effect of fluoroethylene carbonate (FEC) additives on the SEI layer. Our XPS, EIS and TEM analysis of CO and CO bonds, interfacial resistance and thickness of SEl layer, respectively, shows that the FEC produces electrochemically and mechanically stable SEI layer. The SiNSs with FEC showed the capacity of over 1500 mA h g− 1 with 95% efficiency after 200 cycles.
URI
http://pubs.kist.re.kr/handle/201004/69813
ISSN
0009-2614
Appears in Collections:
KIST Publication > Article
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