POWER STORAGE ELEMENT AND FITTING BOLT

摘要

PROBLEM TO BE SOLVED: To provide a power storage element capable of resisting against high torque applied to a fitting bolt when fitting a conductive member to an electrode terminal.

SOLUTION: A power storage element comprises: a housing 120; an electrode terminal 105 fitted to the outer side of the housing 120; a fitting bolt 108 for fitting a conductive member 200 which has electric conductivity to the electrode terminal 105; and an insulation member 109 for insulating the fitting bolt 108 and the housing 120 from each other. The fitting bolt 108 includes: a rod-like screw portion 181 which is threaded on its outer periphery; and a rotation-resistant portion 182 which is a flange-like member radially protruding from one end of the screw portion 181, and which has a first abutting surface part 183 arranged along a surface perpendicular or substantially perpendicular to the rotation direction of a nut 201 screwed to the screw portion 181. The insulation member 109 includes a recessed portion 191 which houses the rotation-resistant portion 182 and has a second abutting surface part 192 brought into contact with the first abutting surface part 183.

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