Provided is an electrode mix, in which gelation of an electrode mix slurry is suppressed and in which the high bonding properties of an electrode active material and a current collector are maintainedeven after a long period of time has passed since the preparation of the electrode mix slurry. This electrode mix includes: a binder composition including a first copolymer of vinylidene fluoride anda polar group-containing compound, and a second copolymer of vinylidene fluoride and chlorotrifluoroethylene; and an electrode active material of lithium oxide in which, when the lithium oxide is extracted with water, the pH of the water is at least 10.5.