Power storage module and power storage device

A power storage module that is used in a stacked power storage device, comprising:

• an electrode stacked body, in which a bipolar electrode including a positive electrode formed on a first surface of a current collector and a negative electrode formed on a second surface opposite to the first surface, is stacked along a first direction;
• and
• a sealing portion that forms an internal space between a plurality of current collectors adjacent to each other in the first direction and seals the internal space,
• wherein the sealing portion includes
• a main body portion that is a cylindrical body formed in a rectangular frame shape so as to surround the electrode stacked body when viewed from the first direction and is provided with a plurality of communication paths each communicating with a plurality of internal spaces in a side surface of the cylindrical body, and
• a liquid injection portion that is attached to the one side surface of the main body portion and includes a plurality of liquid injection ports each communicating with the communication paths,
• the liquid injection portion includes a plurality of liquid injection frames each independently surrounding an end portion of each of the plurality of communication paths arranged along the first direction and forming each of the liquid injection ports, the plurality of liquid injection frames being arranged on the one side surface of the main body portion in a second direction orthogonal to the first direction,
• the plurality of liquid injection frames arranged in the second direction include a first liquid injection frame in which a part of the liquid injection frame protrudes from the main body portion to at least one side in the first direction and a second liquid injection frame in which a part of the liquid injection frame protrudes from the main body portion to at least another side in the first direction,
• an amount of protrusion of the first liquid injection frames is larger than an amount of protrusion of the second liquid injection frame in terms of an amount of protrusion of the part of the liquid injection frame from the main body portion to the one side in the first direction, and
• an amount of protrusion of the second liquid injection frame is larger than an amount of protrusion of the first liquid injection frame in terms of an amount of protrusion of the part of the liquid injection frame from the main body portion to the other side in the first direction.