Secondary battery, apparatus for manufacturing the same, and method of manufacturing the same
First Claim
1. A secondary battery comprising:
- a first electrode assembly comprising a first separator in a serpentine form and first and second electrode plates that are respectively a positive electrode plate and a negative electrode plate and located on two surfaces of the first separator that are spaced apart and facing opposite each other; and
a second electrode assembly comprising a second separator in a serpentine form and third and fourth electrode plates that are respectively a positive electrode plate and a negative electrode plate and located on two surfaces of the second separator that are spaced apart and facing opposite each other, the second electrode assembly being stacked on the first electrode assembly in a stacking direction to form a stacked assembly; and
a first adhesive layer attached to side portions of the first separator that are spaced from each other and adjacent to each other along the stacking direction and a second adhesive layer attached to side portions of the second separator that are spaced from each other and adjacent to each other along the stacking direction,wherein the first separator, to which the first and second electrode plates are combined, is bent with respect to ends of the first and second electrode plates such that a portion of the first separator is located on the second separator, the second separator, on which the third and fourth electrode plates are combined, is bent with respect to ends of the third and fourth electrode plates such that a portion of the second separator is located on the first separator, and each of the first separator and the second separator is bent toward the stacking direction at opposite sides of the stacked assembly so as to be S-shacking, such that the side portions of the first separator are spaced apart along the slacking direction by a first gap and the side portions of the second separator are spaced apart along the stacking direction by a second gap, wherein the first and second adhesive layers bridge the respective first and second gaps, and the first gap is surrounded by the first separator, and the second gap is surrounded by the second separator, and first ends of the respective first and second separators are respectively located at the opposite sides of the stacked assembly at a first end of the stacked assembly, wherein the first separator and the second separator are continuously parallel to each other and wherein the first electrode plate of the first electrode assembly and the third electrode plate of the second electrode assembly are located between the first separator and the second separator.
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Abstract
A secondary battery includes a first electrode assembly comprising a first separator in a serpentine form and first and second electrode plates that are respectively located on two surfaces of the first separator at different positions; and a second electrode assembly comprising a second separator in a serpentine form and third and fourth electrode plates that are respectively located on the second separator at different positions, wherein the first separator, to which the first and second electrode plates are combined, is bent with respect to ends of the first and second electrode plates so that the portion of the first separator is located on the second separator, and the second separator, on which the third and fourth electrode plates are combined, is bent with respect to ends of the third and fourth electrode plates so that the portion of the second separator is located on the first separator.
6 Citations
11 Claims
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1. A secondary battery comprising:
- a first electrode assembly comprising a first separator in a serpentine form and first and second electrode plates that are respectively a positive electrode plate and a negative electrode plate and located on two surfaces of the first separator that are spaced apart and facing opposite each other; and
a second electrode assembly comprising a second separator in a serpentine form and third and fourth electrode plates that are respectively a positive electrode plate and a negative electrode plate and located on two surfaces of the second separator that are spaced apart and facing opposite each other, the second electrode assembly being stacked on the first electrode assembly in a stacking direction to form a stacked assembly; and a first adhesive layer attached to side portions of the first separator that are spaced from each other and adjacent to each other along the stacking direction and a second adhesive layer attached to side portions of the second separator that are spaced from each other and adjacent to each other along the stacking direction, wherein the first separator, to which the first and second electrode plates are combined, is bent with respect to ends of the first and second electrode plates such that a portion of the first separator is located on the second separator, the second separator, on which the third and fourth electrode plates are combined, is bent with respect to ends of the third and fourth electrode plates such that a portion of the second separator is located on the first separator, and each of the first separator and the second separator is bent toward the stacking direction at opposite sides of the stacked assembly so as to be S-shacking, such that the side portions of the first separator are spaced apart along the slacking direction by a first gap and the side portions of the second separator are spaced apart along the stacking direction by a second gap, wherein the first and second adhesive layers bridge the respective first and second gaps, and the first gap is surrounded by the first separator, and the second gap is surrounded by the second separator, and first ends of the respective first and second separators are respectively located at the opposite sides of the stacked assembly at a first end of the stacked assembly, wherein the first separator and the second separator are continuously parallel to each other and wherein the first electrode plate of the first electrode assembly and the third electrode plate of the second electrode assembly are located between the first separator and the second separator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11)
- a first electrode assembly comprising a first separator in a serpentine form and first and second electrode plates that are respectively a positive electrode plate and a negative electrode plate and located on two surfaces of the first separator that are spaced apart and facing opposite each other; and
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10. A secondary battery comprising:
- a first electrode assembly comprising a first separator in a serpentine form and first and second electrode plates that are respectively a positive electrode plate and a negative electrode plate and located on two surfaces of the first separator that are spaced apart and facing opposite each other;
a second electrode assembly comprising a second separator in a serpentine form and third and fourth electrode plates that are respectively a positive electrode plate and a negative electrode plate and located on two surfaces of the second separator that are spaced apart and facing opposite each other, the second electrode assembly being stacked on the first electrode assembly in a stacking direction to form a stacked assembly; and a first adhesive layer that is attached to side portions of the first separator that are spaced from each other and adjacent to each other along the stacking direction and a second adhesive layer that is attached to side portions of the second separator that are spaced from each other and adjacent to each other along the stacking direction, wherein each of the first separator and the second separator is bent toward the stacking direction at opposite sides of the stacked assembly so as to be S-shaped such that the side portions of the first separator are spaced apart along the stacking direction by a first gap, and the side portions of the second separator are spaced apart along the stacking direction by a second gap, wherein the first and second adhesive layers bridge the respective first and second gaps, and the first gap is surrounded by the first separator, and the second gap is surrounded by the second separator.
- a first electrode assembly comprising a first separator in a serpentine form and first and second electrode plates that are respectively a positive electrode plate and a negative electrode plate and located on two surfaces of the first separator that are spaced apart and facing opposite each other;
Specification