| 摘要 |
PROBLEM TO BE SOLVED: To facilitate potential control of a reference electrode.SOLUTION: A cylindrical secondary battery has a power generation element, a positive electrode tab and a negative electrode tab that are connected to the power generation element, a battery can for housing an electrode group, the positive electrode tab, and the negative electrode tab, a can lid for sealing the battery can, and a reference electrode disposed in the battery can and the can lid. The can lid has an inner pressure sensing part, an outer frame structure, and a top cap, the reference electrode has a reference electrode tab and an electrode material, the outer frame structure is connected to the electrode material through the reference electrode tab, the positive electrode tab is connected to a top cap through the inner pressure sensing part, the battery can is connected to the negative electrode tab, the top cap has a top cap exposed part, the outer structure has an outer structure exposed part, and the outer structure exposed part is formed so as to surround the top cap exposed part, in the cylindrical secondary battery. |
