STATIONARY ELECTRIC POWER SYSTEM AND METHOD FOR MANUFACTURING STATIONARY ELECTRIC POWER SYSTEM

Stationary electric power system PS including low profile secondary battery 1 electrically connected to external electric power load 2, and charge control unit 5 that charges low profile secondary battery 1 with electric power of external electric power generating element 2 or commercial power supply 3. Low profile secondary battery 1 includes battery body 11 including electric power generating element 112 accommodated in exterior package members 111. Exterior package members 111 are formed of a laminated film containing resin layer 111c, and have outer peripheral portions 113 sealed together. Low profile secondary battery 1 includes spacer 12 disposed between the outer peripheral portions of battery body 11 and the outer peripheral portions of other battery body when the other battery body is stacked on battery body 11. Spacer 12 includes fixing portion 121 that fixes the battery body in a predetermined position. Elastic resin portion 13 is formed in at least region H1 that includes a periphery of the fixing portion and overlap portion 14 of the outer peripheral portions and the spacer, by insert molding of an elastic resin.