Browse

2-(triphenylphosphoranylidene) succinic anhydride as a new electrolyte additive to improve high temperature cycle performance of LiMn2O4/graphite Li-ion batteries

Cited 16 time in Web of Science Cited 16 time in Scopus
Authors
Ryou, Myung-Hyun; Lee, Je-Narn; Lee, Dong Jin; Kim, Wan-Keun; Choi, Jang Wook; Park, Jung-Ki; Lee, Yong Min
Issue Date
2013-07
Citation
Electrochimica Acta, Vol.102, pp.97-103
Keywords
2-(triphenylphosphoranylidene) succinic anhydride (TPSA)LiMn2O4GraphiteLi-ion batteries (LIBs)High temperature
Abstract
Aiming at improving the capacity retention abilities of LiMn2O4/graphite based Li-ion batteries (LIBs) at high temperatures, we report on 2-(triphenylphosphoranylidene) succinic anhydride (TPSA) as a new electrolyte additive. The unit cells with 0.1 wt.% of TPSA achieved a 43% capacity retention increase at high temperature operation (55 degrees C, 100 cycles, C/2 rate) compared to a control group without the additive. To understand the underlying principle on the enhanced capacity retention ability of the unit cells, the effect of TPSA was investigated by cyclic voltammetry, X-ray photoelectron spectroscopy, auger electron spectroscopy, and galvanostatic measurements. The results suggest that the electrochemical decomposition of TPSA takes place on both surfaces of the LiMn2O4 and graphite during precycling, thereby reducing the decomposition reaction of the electrolyte during subsequent cycles. (c) 2013 Elsevier Ltd. All rights reserved.
ISSN
0013-4686
URI
http://hdl.handle.net/10371/164657
DOI
https://doi.org/10.1016/j.electacta.2013.03.129
Files in This Item:
There are no files associated with this item.
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse