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US 2026/0229729 A1Published application
Electrode assembly and secondary battery comprising the electrode assembly
AssigneeSamsung SDI Co., Ltd.
InventorsSo Yeon KIM, Young Jae CHO, Jung Hyun KIM, Jun Ho YANG, Hyun Suk PARK, Dae June JEONG, Im Hyuck BAE
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Abstract
Disclosed is a secondary battery including an electrode assembly having a first electrode plate, a second electrode plate, a separator interposed between the first electrode plate and the second electrode plate, a first electrode current collector plate electrically connected to the first electrode plate, a second electrode current collector plate electrically connected to the second electrode plate, and a can accommodating the electrode assembly.
Claims18
An electrode assembly comprising:
- a first electrode plate;
- a second electrode plate;
- and
- a separator interposed between the first electrode plate and the second electrode plate,
- wherein the first electrode plate comprises a plurality of first electrode substrate tabs, each of the first electrode substrate tabs including a first electrode bent portion such that the first electrode plate comprises a plurality of first electrode plate bent portions, wherein heights of the plurality of first electrode plate bent portions of the first electrode substrate tabs increase from a first side of the electrode assembly toward a winding core portion of the electrode assembly, and
- wherein the second electrode plate comprises a plurality of second electrode substrate tabs, each of the plurality of second electrode substrate tabs including a second electrode plate bent portion such that the second electrode plate comprises a plurality of second electrode plate bent portions, and
- wherein heights of the second electrode plate bent portions of the second electrode substrate tabs increase from a second side of the electrode assembly toward the winding core portion of the electrode assembly.
4 more elements
An electrode assembly comprising:
- a first electrode plate,
- a second electrode plate,
- a separator interposed between the first electrode plate and the second electrode plate,
- wherein the first electrode plate includes a plurality of first electrode substrate tabs, and the second electrode plate includes a plurality of second electrode substrate tabs,
- wherein among the plurality of first electrode substrate tabs, an overall length of a first electrode substrate tab closest to the winding core portion of the electrode assembly is different from an overall length of the first electrode substrate tab closest to a winding end portion of the electrode assembly, and
- wherein among the plurality of second electrode substrate tabs, an overall length of a second electrode substrate tab that is closest to the winding core portion of the electrode assembly is different from an overall length of the second electrode substrate tab that is closest to the winding end portion of the electrode assembly.
3 more elements
An electrode assembly comprising:
- a first electrode plate;
- a second electrode plate;
- and
- a separator interposed between the first electrode plate and the second electrode plate,
- wherein the first electrode plate comprises a plurality of first electrode substrate tabs, each of the plurality of first electrode substrate tabs including a bent portion such that the first electrode plate comprises a plurality of first electrode bent portions, and a lower end portion extending from the bent portion towards a first surface of the electrode assembly such that the first electrode plate comprises in a plurality of first electrode lower end portions,
- wherein the second electrode plate comprises a plurality of second electrode substrate tabs, each of the plurality of second electrode substrate tabs including a bent portion such that the second electrode plate comprises a plurality of second electrode bent portions, and a lower end portion extending from the bent portion towards a second surface of the electrode assembly such that the second electrode plate comprises in a plurality of second electrode lower end portions,
- wherein the first electrode lower end portions of the first electrode substrate tabs are formed in a first diagonal shape having a first predetermined angle with respect to the first surface of the electrode assembly, and
- wherein the second electrode bent portions of the second electrode substrate tabs are formed in a second diagonal shape having a second predetermined angle with respect to the second surface of the electrode assembly.
5 more elements
A secondary battery comprising:
- an electrode assembly comprising:
- a first electrode plate;
- a second electrode plate;
- a separator interposed between the first electrode plate and the second electrode plate;
- a first electrode collector plate electrically connected to the first electrode plate;
- and
- a second electrode collector plate electrically connected to the second electrode plate;
- and
- a can accommodating the electrode assembly, wherein the first electrode plate comprises a plurality of first electrode substrate tabs, each of the plurality of first electrode substrate tabs including a bent portion such that the first electrode plate comprises a plurality of first electrode bent portions, with first heights of the first electrode bent portions increasing from a first surface of the electrode assembly toward a winding core portion of the electrode assembly, and
- wherein the second electrode plate comprises a plurality of second electrode substrate tabs, each of the plurality of second electrode substrate tabs including a bent portion such that the second electrode plate comprises a plurality of second electrode bent portions, second heights of the plurality of the second electrode bent portions increasing from a second surface of the electrode assembly toward the winding core portion of the electrode assembly.
7 more elements
Dependencies are inferred from the claim text.