STORAGE DEVICE AND CHARGING/DISCHARGING DEVICE

摘要

A storage device which includes an electrolyte, a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a separator between the positive electrode and the negative electrode, and in which: the electrolyte contains anions and cations; the cations contain at least lithium ions; the positive electrode active material contains a first carbonaceous material and a second carbonaceous material; the first carbonaceous material expresses a capacity due to a first reaction in which the anions are adsorbed and desorbed; and the second carbonaceous material expresses a capacity due to a second reaction in which the anions are occluded and discharged.