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US 12,609,343 B2Granted
Battery cell including a bend portion and battery module including same
AssigneeSK On Co., Ltd.
InventorsSeo Roh Rhee, Ha Chul Jeong, Yang Kyu Choi, Jeong Woo Han
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Abstract
A battery cell includes an electrode assembly including a plurality of electrode plates; and a pouch surrounding the electrode assembly, wherein the pouch includes a folded portion folded along one edge of the electrode assembly; a sealing portion formed along a remaining edge of the electrode assembly; and a bend portion including a portion in which the sealing portion and the folded portion meet, therein the portion is bent toward the sealing portion.
Claims17
A battery cell comprising:
- an electrode assembly including a plurality of electrode plates;
- and
- a pouch surrounding the electrode assembly,
- wherein the pouch comprises:
- a folded portion folded along one edge of the electrode assembly;
- a sealing portion formed along at least a portion of a remaining edge of the electrode assembly;
- and
- a bend portion including a first portion in which the sealing portion and the folded portion meet, wherein the first portion is bent toward the sealing portion,
- wherein at least one of the plurality of electrode plates comprises a chamfered portion in which a corner adjacent to the bend portion is cut,
- wherein the chamfered portion has a shape curved toward an inside of the plurality of electrode plates, and
- wherein a first side of the electrode assembly includes the chamfered portion, the first side of the electrode assembly facing the folded portion.
8 more elements
A battery module comprising:
- a battery cell comprising:
- an electrode assembly including a plurality of electrode plates;
- and a pouch surrounding the electrode assembly, wherein the pouch comprises:
- a folded portion folded along one edge of the electrode assembly;
- a sealing portion formed along at least a portion of a remaining edge of the electrode assembly;
- and a bend portion including a first portion in which the sealing portion and the folded portion meet, wherein the first portion is bent toward the sealing portion;
- and
- a frame having a seating surface on which the folded portion of the battery cell is seated, wherein an edge of the bend portion of the battery cell is disposed at the same height as the seating surface or disposed at a position higher than the seating surface,
- wherein at least one of the plurality of electrode plates comprises a chamfered portion in which a corner adjacent to the bend portion is cut,
- wherein the chamfered portion has a shape curved toward an inside of the plurality of electrode plates, and
- wherein a first side of the electrode assembly includes the chamfered portion, the first side of the electrode assembly facing the folded portion.
8 more elements
Dependencies are inferred from the claim text.