| abstract |
A secondary battery capable of accurately responding to reduction in size, weight, and thickness is provided. In a secondary battery for an electronic device 1 that supplies power to the electronic device 10 by being attached to the electronic device 10, a positive electrode, a negative electrode, and an electrolyte are housed in a packaging body 23, and the positive electrode and the negative electrode are respectively The battery cell 3 in which the positive electrode terminal 21 and the negative electrode terminal 22 are led out from the same side surface 3a of the package 23 and the one opening 5 into which the battery cell 3 is inserted are formed, and the positive electrode terminal 21 and the negative electrode terminal 22 are led out. Further, the metal battery can 2 that houses the battery cell 3 with the one side surface 3a facing the opening 5 side, the positive terminal 21 and the negative terminal 22 are connected and faced outward so that the electronic device 10 A positive electrode terminal portion 37 and a negative electrode terminal portion 38 connected to the electrodes are provided, and a lid 4 made of a synthetic resin that closes the opening 5 of the battery can 2 is provided. [Selection] Figure 3 |