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US 11,641,038 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
Estimating the term…
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.
Claims10
A pouch-type secondary battery, comprising:
- an electrode assembly;
- and
- a pouch member in which the electrode assembly is accommodated,
- wherein the pouch member comprises:
- an accommodation case in which the electrode assembly is accommodated, comprising a first side surface on which at least one lead tab is disposed and a second side surface extending in a direction different from the first side surface;
- and
- a sealing portion formed on the first side surface and the second side surface of the accommodation case,
- wherein the sealing portion comprises:
- a horizontal protrusion configured to protrude on the first side surface;
- and
- an inclined protrusion configured to be connected to an end of the horizontal protrusion and to extend from an edge of the second side surface,
- wherein the horizontal protrusion comprises:
- a first protrusion surrounding the lead tab, disposed to be spaced apart from a first edge of the first side surface and a second edge of the first side surface opposite to the first edge, and extending in parallel with the first edge;
- and
- a second protrusion extending in a direction inclined with respect to the first edge and connected to the inclined protrusion.
12 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 each pouch-type secondary battery includes:
- an electrode assembly;
- and
- a pouch member in which the electrode assembly is accommodated,
- wherein the pouch member comprises:
- an accommodation case in which the electrode assembly is accommodated, comprising a first side surface on which at least one lead tab is disposed and a second side surface extending in a direction different from the first side surface;
- and
- a sealing portion formed on the first side surface and the second side surface of the accommodation case,
- wherein the sealing portion comprises:
- a horizontal protrusion configured to protrude on the first side surface of the pouch member;
- and
- an inclined protrusion configured to be connected to an end of the horizontal protrusion and to extend from an edge of the second side surface of the pouch member,
- wherein the horizontal protrusion comprises:
- a first protrusion surrounding the lead tab, disposed to be spaced apart from a first edge of the first side surface and a second edge of the first side surface opposite to the first edge, and extending in parallel with the first edge;
- and
- a second protrusion extending in a direction inclined with respect to the first edge and connected to the inclined protrusion.
16 more elements
A battery module comprising:
- a housing including a cover, and lower and upper cooling portions positioned on the cover;
- a plurality of pouch-type secondary batteries positioned inside the housing,
- wherein each pouch-type secondary battery includes an electrode assembly positioned inside a pouch member, having a sealing portion, the sealing portion including a horizontal protrusion extending vertically from a first side surface of the pouch member and an inclined protrusion connected to an end of the horizontal protrusion and extending slantingly from an edge of a second side surface of the pouch member adjacent to the first side surface,
- wherein the horizontal protrusion comprises:
- a first protrusion surrounding a lead tab of the electrode assembly, disposed to be spaced apart from a first edge of the first side surface and a second edge of the first side surface opposite to the first edge, and extending in parallel with the first edge;
- and
- a second protrusion extending in a direction inclined with respect to the first edge and connected to the inclined protrusion,
- and
- wherein the cover is configured to press the inclined protrusion of each pouch-type secondary battery such that the inclined protrusion is folded.
6 more elements
Dependencies are inferred from the claim text.