| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device with improved collapse resistance of an electrode assembly.SOLUTION: A secondary battery 1 comprises an electrode assembly 20 and a conductive member 31. The electrode assembly 20 comprises a main body part 21 composed of a first active material part 26, a second active material part 28, and a separator S, a first collector part 22, and a second collector part 23. A positive electrode 24 includes the first active material part 26, the first collector part 22, and a first connection part 27b located between the first active material part 26 and the first collector part 22. A negative electrode 25 includes the second active material part 28, the second collector part 23, and a second connection part 29b located between the second active material part 28 and the second collector part 23. The conductive member 31 includes a base part 41 bonded to the first collector part 22 and a flange part 42 erected in an end on the main body part 21 side of the base part 41. A tip 42a of the flange part 42 extends in a direction away from the first connection part 27b. |
