NOVELTY - Stacking apparatus for assembly of electrochemical cells, comprises stacking head(s) having adjustable holding member to hold electrochemical laminate. The stacking head is operative to stack laminates one on top of the other, during stacking the adjustable holding member holding each particular electrochemical laminate in shape such that central portion of laminate is deposited first followed by motion of adjustable holding member.    USE - The apparatus is for stacking polymer electrochemical laminates to form polymer electrochemical cells that are constituents of a polymer battery (claimed).    ADVANTAGE - The apparatus provides lower overall battery weight, high power density, high specific energy, longer service life, as well as being environmentally friendly since the danger of spilling toxic liquid into the environment is eliminated.    DETAILED DESCRIPTION - A stacking apparatus (40) for assembly of electrochemical cells, comprises a supporting structure (47); and at least one stacking head (45) having an adjustable holding member adapted to hold an electrochemical laminate (30) of a pre-determined length and having mechanism for adjusting the shape of the electrochemical laminate. The stacking head is operative to stack the electrochemical laminates of the predetermined length one on top of the other, during stacking the adjustable holding member holding each particular electrochemical laminate of the pre-determined length in a shape such that a central portion of the particular electrochemical laminate of the predetermined length is deposited first followed by a motion of the adjustable holding member that progressively lowers the remainder of the particular electrochemical laminate of the pre-determined length, thus preventing air entrapment between adjacent electrochemical laminates of the pre-determined length in the stack. An INDEPENDENT CLAIM is also included for a process for assembling electrochemical laminates to form a battery, comprising:    (1) laminating a continuous length of anode film with a continuous length of pre-assembled half cell comprising a current collector, a cathode film and an electrolyte separator film;    (2) cutting the laminate into pre-determined lengths of laminates;    (3) stacking the pre-determined lengths of laminates one on top of the other in a shape such that a central portion of each the pre-determined length of laminate is deposited first, followed by a motion that progressively lowers the remainder of the pre-determined length of laminate, thus preventing air entrapment between adjacent pre-determined lengths of laminate in the stack.    DESCRIPTION OF DRAWING(S) - The figure is a schematic front elevational view of a stacking apparatus.    Electrochemical laminate (30)    Stacking apparatus (40)    Stacking head (45)    Supporting structure (47)    Rotary knife (76)