|Title||Compatibility of Lix TiyMn1-y02 (y=0,0.11) electrode materials with pyrrolidinium-based ionic liquid electrolyte systems|
|Publication Type||Journal Article|
|Year of Publication||2008|
|Authors||Saint, Juliette A., Adam S. Best, Anthony F. Hollenkamp, Joon Ho Shin, and Marca M. Doeff|
|Journal||Journal of The Electrochemical Society|
|Keywords||dissolving, electrochemical electrodes, electrolytes, lithium, lithium compounds, secondary cells, titanium compounds|
The possibility of using electrolyte systems based on room-temperature ionic liquids (RTILs) in lithium-battery configurations is discussed. The nonflammability and wide potential windows of RTIL-based systems are attractive potential advantages, which may ultimately lead to the development of safer, higher energy density devices than those that are currently available. An evaluation of the compatibility of these electrolyte systems with candidate electrodes is critical for further progress. A comparison of the electrochemical behavior of Li/RTIL/LixMnO2 and LixTi0.11Mn0.89O2 cells with those containing conventional carbonate solutions is presented and discussed in terms of the physical properties of two RTIL systems and their interactions with the cathodes. Strategies to improve performance and minimize cathode dissolution are presented.