Battery assembly with linear bus bar configuration

A battery assembly, comprising:

• a plurality of batteries, each battery of said plurality of batteries comprising a first terminal at a first end portion of said battery and a second terminal at said first end portion of said battery, wherein said plurality of batteries are divided into a plurality of battery groups, each battery group of said plurality of battery groups comprising a subset of said plurality of batteries, wherein said batteries within each subset of said plurality of batteries are electrically connected in parallel, and wherein said battery groups of said plurality of battery groups are electrically connected in series;
• an upper tray member, wherein said upper tray member captures said first end portion of each battery of said plurality of batteries, said upper tray member further comprising a plurality of apertures, wherein said plurality of apertures provide access to said first terminal and to said second terminal of each battery of said plurality of batteries;
• a plurality of bus bars attached to an upper surface of said upper tray member, wherein said plurality of bus bars are non-overlapping, wherein said plurality of bus bars are devoid of contact fingers, wherein said plurality of bus bars are configured in an alternating pattern with said plurality of battery groups, wherein said alternating pattern alternates a single bus bar of said plurality of bus bars with a single battery group of said plurality of battery groups such that only one bus bar is adjacent to either side of each battery group, wherein a first set of said bus bars are of a first polarity and wherein a second set of said bus bars are of a second polarity, wherein said plurality of bus bars attached to said upper surface of said upper tray member alternate between said first polarity and said second polarity, wherein each battery of a corresponding battery group is electrically connected via said first terminal to one bus bar of said first set of bus bars adjacent to a first side of said corresponding battery group and electrically connected via said second terminal to one bus bar of said second set of bus bars adjacent to a second side of said corresponding battery group;
• a lower tray member comprising a second plurality of apertures corresponding to said plurality of batteries, wherein said lower tray member captures a second end portion of each battery of said plurality of batteries;
• and
• a heat spreader coupled to a lower surface of said lower tray member, wherein at least a lowermost surface of each battery of said plurality of batteries passes through said lower tray member and is in thermal contact with an upper surface of said heat spreader.