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US 12,191,507 B2Granted
Battery cell
AssigneeSK On Co., Ltd.
InventorsJae Sik Shin, Seung Hoon Ju, Jae Gyu Byun, Gi Jeong Seo
Life of this patent
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Abstract
A battery cell includes an electrode assembly in which a plurality of electrode plates are stacked; a protective assembly disposed on at least one side of the electrode assembly and including an insulating material; and a case having an internal space in which the electrode assembly is accommodated, wherein the protective assembly includes a through-hole configured to allow electrolyte to pass therethrough.
Claims14
A battery cell, comprising:
- an electrode assembly in which a plurality of electrode plates are stacked, and the electrode assembly includes a coated portion coated with an active material and uncoated portion not coated with an active material;
- a protective assembly disposed on at least one side of the electrode assembly and including an insulating material;
- a case having an internal space in which the electrode assembly is accommodated, and
- a cap assembly coupled to the case to close the internal space and facing the electrode assembly,
- wherein the protective assembly includes:
- a current collecting member disposed between the cap assembly and the electrode assembly and electrically connected with the electrode assembly, and includes a first surface facing the cap assembly;
- and
- a protective frame disposed between the current collecting member and the electrode assembly, and supports the current collecting member,
- wherein at least a portion of the uncoated portion protrudes toward the cap assembly and is bent to form a bonding portion,
- wherein the bonding portion is disposed between the cap assembly and the current collecting member, and configured to contact in the first surface of the current collecting member.
7 more elements
A battery cell, comprising:
- an electrode assembly in which a plurality of electrode plates are stacked;
- a case having an internal space in which the electrode assembly is accommodated;
- a cap assembly coupled to the case and having a terminal portion disposed thereon;
- and
- a protective assembly disposed between the electrode assembly and the cap assembly and protecting the electrode assembly,
- wherein the protective assembly includes:
- a current collecting member electrically connected with the electrode assembly, and disposed between the cap assembly and the electrode assembly;
- a connection member disposed to electrically connect the current collecting member and the terminal portion;
- and
- a protective frame includes an insulating material and supports the current collecting member and the connection member,
- wherein the connection member protrudes toward the cap assembly,
- wherein the electrode assembly further includes an uncoated portion not coated with an active material and contact with the current collecting member, and
- wherein a portion of the uncoated portion is cut to form an avoidance portion for avoiding interference with the connection member.
10 more elements
Dependencies are inferred from the claim text.