Battery module and method of manufacturing the same
AssigneeLG Energy Solution, Ltd.
InventorsChangje Lee, Dae Ji Hong, Hanjong Yoon, Kangil Lee, Seung Hwan Bae, Jaehyun Bae
Life of this patent
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Abstract
A battery module includes a first member and a second member that are coupled in directions that cross each other, wherein the first member and the second member are weld-coupled; a welding portion of the first member and the second member includes a first welding portion formed on the first member and a second welding portion formed on the second member, based on a coupling surface of the first member and the second member; and the first welding portion and the second welding portion have shapes that are asymmetric to each other.
Claims12
A battery module, comprising:
- a plurality of battery cell stacked bodies, each including a plurality of battery cells;
- and
- a module frame accommodating the plurality of battery cell stacked bodies,
- wherein the module frame includes a frame, and a plate-shaped plate coupled with the frame,
- wherein the frame includes a bottom portion, and a first side portion and a second side portion, the first and second side portions facing each other,
- wherein the plate-shaped plate and the first side portion and the second side portion are weld-coupled by laser welding where a welding irradiation beam is oriented other than parallel to a first coupling surface of the plate-shaped plate and the first side portion and to a second coupling surface of the plate-shaped plate and the second side portion,
- wherein a welding portion of the plate-shaped plate and the first side portion and a welding portion of the plate-shaped plate and the second side portion each include a first welding portion formed on the plate-shaped plate and a second welding portion formed on the respective side portions, based on the respective coupling surfaces of the plate-shaped plate and the side portions,
- wherein the first welding portion and the second welding portion have shapes that are asymmetric to each other,
- wherein a depression is located at a first side surface and a second side surface of the plate-shaped plate, and the first coupling surface and the second coupling surface are formed in the depression, and
- wherein an outermost edge of the depression corresponds to an outermost edge of the respective side portions.
Dependencies are inferred from the claim text.