| abstract |
An aspect of the present invention is an electric storage device including a positive electrode including 1 st positive electrode active material particles and 2 nd positive electrode active material particles, the 1 st positive electrode active material particles containing a metal element capable of forming a conductive metal oxide, the 2 nd positive electrode active material particles not containing the metal element, the 1 st positive electrode active material particles including a lithium-transition metal composite oxide containing nickel, cobalt, and manganese as constituent elements, the 1 st positive electrode active material particles having a median particle diameter larger than a median particle diameter of the 2 nd positive electrode active material particles. |