Battery pack with cell module assemblies

A battery pack, comprising:

• a battery housing defining an internal cavity;
• a positive terminal and a negative terminal;
• and
• a plurality of cell module assemblies (CMAs) received within the internal cavity, the plurality of CMAs being electrically coupled to the positive terminal and the negative terminal, wherein each of the plurality of cell module assemblies comprises:
• a top CMA cell holder frame defining a plurality of first pockets;
• a bottom CMA cell holder frame defining a plurality of second pockets;
• a top collector plate coupled to the top CMA cell holder frame;
• a bottom collector plate coupled to the bottom CMA cell holder frame;
• and
• a plurality of battery cells, each of the plurality of battery cells is partially received in one of the plurality of first pockets and partially received in one of the plurality of second pockets, the plurality of battery cells each being coupled to the top collector plate and the bottom collector plate;
• wherein the plurality of CMAs includes at least two tiers of CMAs, wherein a first tier of CMAs is spaced from a second tier of CMAs with a midplate extending therebetween so that an air gap is arranged between each of the first tier of CMAs and the second tier of CMAs and the midplate, and wherein the first tier of CMAs and the second tier of CMAs are electrically coupled together by a busbar extending between at least one of the CMAs within the first tier of CMAs and at least one of the CMAs within the second tier of CMAs.

A battery pack, comprising:

• a battery housing defining an internal cavity;
• a positive terminal and a negative terminal;
• and
• a plurality of cell module assemblies (CMAs) received within the internal cavity, the plurality of CMAs being electrically coupled to the positive terminal and the negative terminal, wherein each of the plurality of cell module assemblies comprises:
• a top CMA cell holder frame defining a plurality of first pockets;
• a bottom CMA cell holder frame defining a plurality of second pockets;
• a top collector plate coupled to the top CMA cell holder frame;
• a bottom collector plate coupled to the bottom CMA cell holder frame;
• and
• a plurality of battery cells, each of the plurality of battery cells is partially received in one of the plurality of first pockets and partially received in one of the plurality of second pockets, the plurality of battery cells each being coupled to the top collector plate and the bottom collector plate;
• wherein the plurality of CMAs includes at least three tiers of CMAs, wherein a first tier of CMAs is spaced from a second tier of CMAs with a first aluminum midplate extending therebetween so that an air gap is arranged between each of the first tier of CMAs and the second tier of CMAs and the first aluminum midplate, and wherein the second tier of CMAs is spaced from a third tier of CMAs with a second aluminum midplate extending therebetween so that an air gap is arranged between each of the second tier of CMAs and the third tier of CMAs and the second aluminum midplate.