CHAPTER 6. Liquid Non-aqueous Electrolytes for High Voltage Lithium Ion Batteries

Abstract

The instability of the electrode/electrolyte interphase in lithium-ion batteries mainly causes gas generation, increase of cell resistance and capacity fading, especially at high operating voltage. Searching for novel electrolytes that match the developed high specific capacity and high voltage cathode materials is critical for the practical application of next generation lithium-ion batteries. We describe in this chapter the major research on understanding the specific electrolyte component of the high voltage electrode/electrolyte interphase, the influence of the lithium salt anion on the oxidation stability and the decomposition mechanism of the interphasal electrolyte and developing novel electrolytes for next generation lithium-ion batteries.