کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
188281 | 459658 | 2012 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Study on the cycling performance of Li4Ti5O12/LiCoO2 cells assembled with ionic liquid electrolytes containing an additive Study on the cycling performance of Li4Ti5O12/LiCoO2 cells assembled with ionic liquid electrolytes containing an additive](/preview/png/188281.png)
The cycling behavior of Li4Ti5O12/LiCoO2 cells in the ionic liquid electrolytes based on 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl) imide (BMP-TFSI) with different additives, such as vinylene carbonate (VC), 1,3-propane sultone (PS) and their mixture is investigated. The cell assembled with BMP-TFSI containing 10 wt% VC/PS (1:1 by weight) exhibits reversible cycling behavior with good capacity retention. FTIR studies reveal that the electrochemically stable solid electrolyte interphase forms on Li4Ti5O12 electrode in the presence of a mixture of VC and PS during cycling. The additives hardly affect the composition, thickness and stability of the surface film formed on the LiCoO2 cathode.
► Cycling behavior of Li4Ti5O12/LiCoO2 cell in ionic liquid electrolyte is investigated.
► The cells exhibit reversible cycling behavior with good capacity retention.
► The stable SEI forms on Li4Ti5O12 electrode in ionic liquid containing VC and PS.
Journal: Electrochimica Acta - Volume 78, 1 September 2012, Pages 11–16