Electrode assembly with multiple separators wound about a winding center
First Claim
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1. An electrode assembly for a secondary battery comprising:
- a plurality of electrode members arranged in a stacked shape along an imaginary baseline extending in one direction; and
three or more separators, each separator being interposed between and separating adjacent electrode members of opposite polarities of the plurality of electrode members,wherein the three or more separators are wound together about a winding center such that at least three of the three or more separators are folded together, each folded separator comprising two folded sections opposing each other, wherein a portion of at least one of the three or more separators is inserted and interposed between the two folded sections of one of the folded separators.
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Abstract
An electrode assembly for a secondary battery, a method of manufacturing the electrode assembly and a secondary battery having the electrode assembly. The electrode assembly includes a plurality of electrode members arranged in a stacked shape along a baseline extending in one direction and a separation unit separating two adjacent electrode members. The separation unit includes three or more separators having a same winding center.
10 Citations
20 Claims
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1. An electrode assembly for a secondary battery comprising:
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a plurality of electrode members arranged in a stacked shape along an imaginary baseline extending in one direction; and three or more separators, each separator being interposed between and separating adjacent electrode members of opposite polarities of the plurality of electrode members, wherein the three or more separators are wound together about a winding center such that at least three of the three or more separators are folded together, each folded separator comprising two folded sections opposing each other, wherein a portion of at least one of the three or more separators is inserted and interposed between the two folded sections of one of the folded separators. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 20)
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15. A method of manufacturing an electrode assembly for a secondary battery, the method comprising:
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providing first, second, third, and fourth separators, at least one electrode member formed on two opposite surfaces of the first separator, at least one electrode member formed on two opposite surfaces of the fourth separator; sequentially stacking an end of each of the first, second, third, and fourth separators; rolling the first, second, third, and fourth separators to wind the separators together about a winding center; and wherein the ends of the first and second separators face generally in one direction and the ends of the third and fourth separators face generally in an opposite direction. - View Dependent Claims (16, 17)
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18. A method of manufacturing an electrode assembly for a secondary battery, the method comprising:
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providing first, second, and third separators, at least one electrode member formed on two opposite surfaces of the first separator, at least one electrode member formed on two opposite surfaces of the third separator; sequentially stacking the first, second, and third separators, wherein an end portion of the first separator, a middle portion of the second separator and an end portion of the third separator are stacked; rolling the end portions of the first and third separators and the middle portion of the second separator to wind the separators together about a winding center; and wherein the end portion of the first separator and the end portion of the third separator face generally opposite directions. - View Dependent Claims (19)
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Specification