| 摘要 |
<p>In an electricity storage device having a main plate portion of an insulation frame overlapped with an electricity storage element, derailment of the electricity storage element with regard to a direction parallel with the main plate portion is suppressed. According to the present invention, an electricity storage device (10) having the insulation frame (16) and the electricity storage element (14) is provided. The insulation frame includes a main plate portion (40) in contact with the electricity storage element, first flange portions (46a, 48a) and second flange portions (46b, 48b). The first flange portions (46a, 48a) are formed on a circumferential portion of one side of the main plate portion in a predetermined direction (D2 direction) parallel with the main plate portion, and the second flange portions (46b, 48b) are formed on a circumferential portion of the other side of the main plate portion in the predetermined direction (D2 direction). The first flange portions include pressure pressing portions (53a, 53b) having bump portions (56b) which are projected from a surface facing the electricity storage element and pressed against the electricity storage element. The second flange portions include support portions (55a, 55b) which touch the electricity storage element on the other side with respect to the bumps in the predetermined direction (D2 direction).</p> |
