Battery module
AssigneesSK Innovation Co., Ltd., SK On Co., Ltd.
InventorsHoemin CHEONG, HyunJoon PARK, Majid ABBASI GHARACHEH, Wook Hyun KIM, Tae Hyun KIM
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Abstract
Provided is a battery module including a housing having an internal accommodating space and a plurality of battery cells located in the internal accommodating space, wherein the housing includes a welding joint portion in which a first base material of a first alloy and a second base material of a second alloy are welded, the welding joint portion includes a bonding region in which the first base material and the second base material are melt-bonded and a surface region covering the bonding region, and the bonding region and the surface region have different microstructures.
Claims15
A battery module comprising:
- a housing having an internal accommodating space;
- and
- a plurality of battery cells located in the internal accommodating space,
- wherein
- the housing includes a welding joint portion in which a first base material of a first alloy and a second base material of a second alloy are welded,
- the welding joint portion includes a bonding region in which the first base material and the second base material are melt-bonded and a surface region covering the bonding region, and
- the bonding region and the surface region have different microstructures.
Dependencies are inferred from the claim text.