A battery cell (20; 20'; 20") comprising a rectangular cell housing (21; 21'; 21") including six orthogonal surfaces together defining a sealed interior space; an electrode assembly disposed within the interior space, the electrode assembly including a first electrode corresponding to a first electric polarity and a second electrode corresponding to a second electric polarity that is opposed to the first electric polarity, wherein the surfaces include a first end (22; 22'; 22"), an opposed second end (23, 23', 23"), a first side (24; 24'; 24"), a second side (25; 25'; 25") adjoining the first side (24; 24'; 24"), a third side (26; 26'; 26") adjoining the second side (25; 25'; 25") and being opposed to the first side (24; 24'; 24"), and a fourth side (27; 27'; 27") adjoining the third side (26; 26'; 26") and the first side (24; 24'; 24"), the fourth side (27; 27'; 27") being opposed to the second side (25; 25'; 25"), each of the first side (24; 24'; 24"), the second side (25; 25'; 25"), the third side (26; 26'; 26") and the fourth side (27; 27'; 27") extending between the first end (22; 22'; 22") and the second end (23, 23', 23"), a first terminal (80; 80'; 80") which passes through the first end (22; 22'; 22") of the cell housing (21; 21'; 21") in a sealed manner, the first terminal (80; 80'; 80") comprising a first terminal internal portion electrically connected to the first electrode, a leg portion disposed outside of the cell housing (21; 21'; 21") and having a proximal end that is connected to the first terminal internal portion and an opposed distal end, wherein the leg portion protrudes through the first end (22; 22'; 22") along the first side (24; 24'; 24") in a direction normal to the first end (22; 22'; 22") and is folded over the first side (24; 24'; 24") so that the leg portion overlies the first side (24; 24'; 24"), and a band portion formed at the distal end of the leg portion, wherein the leg portion and the band portion are arranged in a "T" configuration such that the band portion extends in a direction transverse to the leg portion, wherein the band portion overlies an outer surface of the first side (24; 24'; 24"), the second side and the fourth side of the cell housing (21; 21'; 21"), so that the band portion overlies only three sides of the cell housing (21; 21'; 21"), and a second terminal (90; 90'; 90") which passes through the first end (22; 22'; 22") of the cell housing (21; 21'; 21") in a sealed manner, the second terminal (90; 90'; 90") comprising a second terminal internal portion electrically connected to the second electrode and a leg portion disposed outside of the cell housing (21; 21'; 21") and having a proximal end that is connected to the second terminal internal portion, wherein the leg portion of the second terminal protrudes through the first end (22; 22'; 22") along the third side (26; 26'; 26") in a direction normal to the first end (22; 22'; 22") and is folded over the third side (26; 26'; 26") and overlies an outer surface of the third side (26; 26'; 26"), so that the leg portion of the second terminal overlies only one side of the cell housing (21; 21'; 21"), wherein the first terminal (80; 80'; 80") and the second terminal (90; 90'; 90") are of electrically conductive material, and wherein the first end and the second end of the cell housing (20; 20'; 20") are electrically neutral.