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US 12,603,341 B2Granted
Pouch-type secondary battery and battery module including the same
AssigneeSK On Co., Ltd.
InventorsGyu Jin Chung, Sun Mo An, Tae Il Kim, Won Seok Jeong
Life of this patent
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Abstract
A pouch-type secondary battery includes an electrode assembly, and a pouch member in which the electrode assembly is accommodated and a sealing portion is formed on an edge of the pouch member, where the sealing portion protruding on one side surface extends in a diagonal direction towards the other side surface adjacent to the at least one side surface.
Claims13
A pouch-type secondary battery, comprising:
- an electrode assembly;
- an accommodation case in which the electrode assembly is accommodated;
- and
- a sealing portion configured to seal the accommodation case,
- wherein the accommodation case comprises a first side surface through which a lead tab extends vertically and faces the electrode assembly, and a second side surface adjacent to the first side surface, and
- wherein the sealing portion comprises:
- a first sealing portion extending from the first side surface;
- and
- a second sealing portion connected to the first sealing portion and extending from an edge of the second side surface,
- wherein the first side surface includes a first edge and a second edge opposing each other, with the lead tab spaced apart and disposed therebetween,
- wherein the second edge of the first side surface disposed to be connected to the edge of the second side surface,
- wherein the first sealing portion includes:
- a first protrusion surrounding the lead tab and extending from between the first edge of the first side surface and the second edge of the first side surface;
- and
- a second protrusion extending from an end of the first protrusion and inclined to connect to the second sealing portion,
- wherein an imaginary line perpendicular to a plane of the first side surface is parallel to an extension direction of the lead tab.
13 more elements
A battery module comprising:
- a plurality of pouch-type secondary batteries;
- and
- a housing in which the plurality of pouch-type secondary batteries are accommodated,
- wherein at least one of the plurality of pouch-type secondary batteries comprises:
- an electrode assembly;
- an accommodation case in which the electrode assembly is accommodated and comprises a first side surface through which a lead tab extends vertically and faces the electrode assembly, and a second side surface adjacent to the first side surface;
- a first sealing portion extending from the first side surface of the accommodation case;
- and
- a second sealing portion connected to the first sealing portion and extending from an edge of the second side surface of the accommodation case,
- wherein the first side surface includes a first edge and a second edge facing in a first direction, with the lead tab spaced apart and disposed therebetween,
- wherein the second edge of the first side surface disposed to be connected to the edge of the second side surface,
- wherein the first sealing portion includes:
- a first protrusion surrounding the lead tab and extending from between the first edge of the first side surface and the second edge of the first side surface;
- and
- a second protrusion extending from an end of the first protrusion and inclined to connect to the second sealing portion,
- wherein an imaginary line perpendicular to a plane of the first side surface is parallel to an extension direction of the lead tab.
13 more elements
Dependencies are inferred from the claim text.