Structure for electrode terminals of battery module

A sealed, prismatic, rechargeable battery comprising:

• a prismatic battery case having longitudinal opposite end walls;
• said longitudinal opposite end walls of said prismatic battery case defining terminal holes therein;
• one or more engagement grooves formed around said terminal holes in the end walls, extending radially with respect to said terminal holes and tapered at an angle in an axial direction of said terminal holes such that a bottom width of said engagement grooves is greater than a top width of said one or more engagement grooves;
• and
• electrode terminals having engagement tabs fitting into and engaging with said engagement grooves.

A sealed, prismatic, rechargeable battery comprising:

• a prismatic battery case having longitudinal opposite end walls;
• said longitudinal opposite end walls of said prismatic battery case defining terminal holes therein;
• and
• electrode terminals respectively mounted in each of said terminal holes, wherein each of said longitudinal opposite end walls of the prismatic battery case has a first wall portion laterally adjacent one side of each of said terminal holes and extending laterally to a first vertical longitudinal edge of said longitudinal end wall and having a first thickness that is different than a second thickness of a second portion of each of the longitudinal opposite end walls laterally adjacent another side of said terminal holes and extending laterally to a second vertical longitudinal edge of said longitudinal end wall.

A sealed, prismatic, rechargeable battery comprising:

• a prismatic battery case having longitudinal opposite end walls;
• said longitudinal opposite end walls of said prismatic battery case defining terminal holes therein;
• electrode terminals respectively mounted in each of said terminal holes;
• at least one first rib formed protruding from each of said longitudinal opposite end walls of the prismatic battery case parallel to a short-side direction of the end walls;
• at least one second rib formed protruding from each of said longitudinal opposite end walls of the prismatic battery case parallel to the long-side direction of the end walls;
• and
• at least one first rib of said at least one first rib and at least one second rib of said at least one second rib intersecting with one another at an inner surface area of said longitudinal end walls removed from edges of said longitudinal end walls.

A sealed, prismatic, rechargeable battery comprising:

• a prismatic battery case having longitudinal opposite end walls;
• said longitudinal opposite end walls of said prismatic battery case defining terminal holes therein;
• electrode terminals respectively mounted in each of said terminal holes;
• and
• protruding components formed protruding from each of said longitudinal opposite end walls of the prismatic battery case, wherein the protruding components protrude further than the electrode terminals and the protruding components protrude 1 mm to 10 mm further than the electrode terminals.

A sealed, prismatic, rechargeable battery comprising:

• a prismatic battery case having longitudinal opposite end walls;
• at least one first rib formed protruding from each of said longitudinal opposite end walls of the prismatic battery case parallel to a short-side direction of the end walls;
• at least one second rib formed protruding from each of said longitudinal opposite end walls of the prismatic battery case parallel to the long-side direction of the end walls;
• and
• at least one first rib of said at least one first rib and at least one second rib of said at least one second rib intersecting with one another at an inner surface area of said longitudinal end walls removed from edges of said longitudinal end walls.

A sealed, prismatic, rechargeable battery comprising:

• a prismatic battery case having longitudinal opposite end walls;
• said longitudinal opposite end walls of said prismatic battery case defining terminal holes therein;
• one or more engagement grooves formed around said terminal holes in the end walls, extending radially with respect to said terminal holes and tapered at an angle in an axial direction of said terminal holes such that a bottom width of said engagement grooves is greater than a top width of said one or more engagement grooves;
• electrode terminals having engagement tabs fitting into and engaging with said engagement grooves;
• and
• each of the electrode terminals having a mounting structure including:
• a disk-shaped seat having a first surface from which the electrode terminal protrudes, and said disk-shaped seat having a connecting protrusion protruding from a second surface opposite said first surface of the disk-shaped seat;
• an annular groove formed around and coaxial with said connecting protrusion;
• and
• an annular protrusion around and coaxial with said annular groove, wherein said engagement tabs are formed extending radially and centered around the connecting protrusion.