In a first arrangement, a z-fold tab member has combined mechanical (44) and adhesive (40) engagement.

The tab (120) includes a folded part (124) provided along an edge of the tab, a corrugated part (122) provided along the folded edge of the tab, and a rivet hole (123).

In a first arrangement, a z-fold tab member has combined mechanical (44) and adhesive (40) engagement.

In one embodiment an upper tab fold tool includes a pivotable plate for holding the folded edge of the tab in position prior to heat sealing to the peelable panel.

The convex flap is folded away from the electrode tab without wrinkling or distorting the pouch shape.

In one embodiment, the cut edge of the film is folded away from the electrode tab.

Between the insertion tab fold and the foldable edge, is folded in the opposite direction a bottom middle fold (46).

The handle (18) has a tongue reception groove (18b) extending transverse to its length at a position such that the tongue reception groove (18b) is engaged by the tongue when the tray is folded.

The tongue attachment end (26) includes a tongue body (36), a tongue hole (30), and a tongue extension (32).

The first tongue defines a first tongue surface and an opposite second tongue surface.

The OPP film is folded one by one and then sealed on the sides and the self-adhesive strips are adhered to the open tongue.

An extended transverse tab (21) is used as a cover tab.

The tongue extension (32) is then inserted through the tongue hole (30).

The folded primary blank is joined to an end blank, which is also folded to form a folded end blank, the folded primary blank and the folded end blank being joined together to define a folded composite blank.

The tab has a size no greater than the tab void area and no greater than the tab receptacle.