BATTERY

A battery includes an electrode body having a winding structure, and an electrolyte solution. The electrode body and the electrolyte solution are accommodated in a case. The electrode body includes: a positive electrode that includes a positive electrode lead, and has a belt shape; a negative electrode that includes a negative electrode lead, and has the belt shape; and a separator that is provided between the positive electrode and the negative electrode, and has the belt shape. The positive electrode lead and the negative electrode lead are led out from a first end face of the electrode body. The electrode body includes a molded part of the separator, and the molded part protrudes from a second end face.