| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device capable of preventing an unintended short-circuit.SOLUTION: A secondary battery comprises: a case; an electrode assembly accommodated inside the case; a first conductive plate disposed between the case and the electrode assembly; a second conductive plate 16 disposed between the case and the first conductive plate; and an insulation member 18 disposed between the first conductive plate and the second conductive plate 16. The insulation member 18 has: first and second covering parts 18Aa, 18Ba for covering principal planes 16a, 16b of the second conductive plate 16; first and second outer edge parts 18Ab, 18Bb on the outside of the first and second covering parts 18Aa, 18Ba; and a junction part 18c for joining the first and second outer edge parts 18Ab, 18Bb together, a protective member P being provided in an edge part 16e of the second conductive plate 16 in contact with the insulation member 18. |
