OXIRANE-BASED ADDITIVES IN SUPPORT OF FIVE VOLT LITHIUM ION CHEMISTRY

摘要

The present disclosure relates to several families of commercially available oxirane compounds that can be used as electrolyte co-solvents, solutes, or additives in non-aqueous electrolyte and their test results in various electrochemical devices. The presence of these compounds can enable rechargeable chemistries at high voltages. These compounds were chosen for their beneficial effect on the interphasial chemistries that occur at high potentials on the classes of 5.0V cathodes used in experimental Li-ion systems.

主权项

1. An electrochemical cell comprising:
a negative electrode; a positive electrode; an electrolyte material adapted to allow for ion passivation between the negative and positive electrodes; an additive dispersed in the electrolyte material; wherein the additive includes at least one oxirane compound.