Power storage device and method of manufacturing power storage device
AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorsToshio Otagiri, Hirokuni Akiyama
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Abstract
A power storage device includes a positive electrode and a negative electrode facing each other, a separator disposed between the positive electrode and the negative electrode, the separator being porous, and a sealing member made of a resin and sealing a space between the positive electrode and the negative electrode. The separator includes a material having a melting temperature higher than a melting temperature of a resin material of the sealing member. The separator has an edge portion sandwiched and held in the sealing member in a state where the edge portion is joined to a melted-then-solidified portion of the resin material of the sealing member.
Claims5
A power storage device comprising:
- a cell stack in which power storage cells are stacked in a stacking direction;
- each of the power storage cells including:
- a positive electrode and a negative electrode facing each other;
- a separator disposed between the positive electrode and the negative electrode, the separator being porous;
- and a sealing member made of a resin and sealing a space between the positive electrode and the negative electrode, wherein the separator includes a material having a melting temperature higher than a melting temperature of a resin material of the sealing member, the separator has an edge portion sandwiched and held in the sealing member in a state where the edge portion is joined to a melted-then-solidified portion of the resin material of the sealing member, wherein the melted-then-solidified portion is uniform on an outer surface of the edge portion of the separator, and a protruded portion of the sealing member of adjacent ones of the stacked power storage cells are joined to each other.
Dependencies are inferred from the claim text.