A study on the electrochemical performance of LiMn2O4/AC-based Li-ion capacitors

Title
A study on the electrochemical performance of LiMn2O4/AC-based Li-ion capacitors
Authors
김상옥이중기
Keywords
Activated carbon; LiMn2O4; Li4Ti5O12; Vinyl ethyl carbonate; Li-ion capacitors
Issue Date
2011-07
Publisher
2011 International Forum on Functional Materials (IFFM 2011)
Abstract
Several LiMn2O4/activated carbon(AC)-based Li-ion capacitors (LICs) were fabricated by varying the weight ratio of two electrode materials and adding Li4Ti5O12 in order to obtain better electrochemical properties. The results of electrochemical characterizations indicate that the weight ratio plays an important role in the enhancement of the cell capacity and the cycle life. The addition of Li4Ti5O12 also led to the increase in the initial discharge capacity without the loss in rate capability. In VEC-containing electrolyte, the cycle performance of LiMn2O4/(AC-Li4Ti5O12) composite Li-ion capacitors is improved with the increase in the amount of Li4Ti5O12 addition.
URI
http://pubs.kist.re.kr/handle/201004/40132
Appears in Collections:
KIST Publication > Conference Paper
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