| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device that can reduce the protrusion amount of a lead or tab projecting from the end face of an electrode assembly and eliminate folding processing of the lead.SOLUTION: A secondary battery as a power storage device is configured in a layer structure having positive electrodes and negative electrodes which are insulated from each other, and has an electrode assembly 12 in which the positive electrodes 14 and the negative electrodes 15 are electrically connected to a positive terminal or a negative terminal through a positive electrode conduction member 24 or a negative electrode conduction member under the state that plural positive electrode tabs 14b or negative electrode tabs are laminated. The positive electrode tabs are laminated so that the end portions thereof form a slant face, welded at the base end side while sandwiched from the laminate direction by the positive electrode conduction member 24 and the protection plate 26, and mounted between the positive electrode conduction member 24 and the protection plate 26 while the tip sides of the positive electrode tabs 14b are folded. The negative electrodes have the same structure, and are connected to the negative electrode terminal. |
