the positive and negative electrodes respectively the electrode tabs are preferably connected along the full lengths thereof on opposite sides of the electrode cell module as illustrated by the end tab 12 on the positive side of the cell module and the end tab 13 on the negative side the outside top surface of the cell module presents the bare foil surface of the positive end electrode 14 and the outside bottom surface presents the bare metal surface of the negative end electrode 15 voltage and temperature sensors attached to the individual tabs or to the electrode tabs provide early information related to safety due to their close proximity to the electrode active materials according to the present invention and as shown in fig1 interleaved between positive and negative electrode plates 9 and 10 is a continuous layer of separator 41 due to the separator 41 which is made of an electrically insulating material possible short circuits at the second and third ends 9 a 10 a respectively of the interior positive electrodes 9 and negative electrodes 10 respectively are reduced the first and fourth ends of the positive and negative electrodes are the ends of the electrode tabs 2 and 4 respectively and are illustrated in fig1 as 9 b and 10 b respectively a single piece of separator 41 of sufficient length is wrapped around the electrode ends in a serpentine manner as illustrated in fig1 in cross section and subsequently sealed by the sealant and housed as per incorporated by reference u s patent publication no 2009 0239130 a1 the separator 41 may be made for example of micro porous polyolefin and be in sheet.