| abstract |
Suppresses the reaction between the electrolyte contained in the electrolyte and the current collector, suppresses the corrosion of the current collector and the deterioration of the electrolyte, suppresses the reduction of energy capacity, is stable at high potential, An electricity storage device with excellent durability and high reliability is provided. An electricity storage device having a positive electrode having a positive electrode active material layer on a positive electrode current collector, a negative electrode having a negative electrode active material layer on a negative electrode current collector, a separator, and an electrolyte solution, the positive electrode current collector or the negative electrode current collector Or both have a corrosion inhibiting film on the surface, and the thickness of the corrosion inhibiting film is 50 nm or more. |