LITHIUM-ION BATTERY

What is provided is a lithium-ion battery in which the energy efficiency can be improved by decreasing both the initial resistance value and deterioration resistance value after charge and discharge cycles of the lithium-ion battery and the generation of heat from the positive electrode associated with discharging can be suppressed. A lithium-ion battery having a positive electrode having a positive electrode current collector and a positive electrode active material layer, a negative electrode having a negative electrode current collector and a negative electrode active material layer and facing the positive electrode and an electrolyte layer disposed between the positive electrode and the negative electrode and containing an electrolytic solution, in which, the electrolytic solution contains a solvent containing 1,2-dimethoxyethane and a fluorinated ether and a lithium imide compound that dissolves in the solvent, and at least some of particle surfaces of a positive electrode active material are coated with a membrane containing fluorine.