Secondary battery
First Claim
Patent Images
1. A secondary battery comprising:
- positive and negative collector plates;
a positive plate and a negative plate, each coated with an active material;
a separator interposed between the positive plate and the negative platea plurality of first weld lines arranged at angles with respect to one another on the positive collector plate for welding the positive collector plate to the positive plate; and
a plurality of second weld lines arranged at angles with respect to one another on the negative collector plate for welding the negative collector plate to the negative plate, wherein the first weld lines and the second weld lines are offset from one another by about 90 degrees.
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Accused Products
Abstract
A secondary battery includes an electrode assembly having a separator interposed between a positive plate and a negative plate. Each of the positive and negative plates has a portion that is not coated with active material. The uncoated regions of the positive and negative plates are respectively fixed to positive and negative collector plates by welding. A plurality of first weld lines are formed on the positive collector plate at predetermined angles from one another. A plurality of second weld lines are formed on the negative collector plate also at predetermined angles from one another. The plurality of first weld lines and the plurality of second weld lines are offset from one another.
9 Citations
19 Claims
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1. A secondary battery comprising:
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positive and negative collector plates; a positive plate and a negative plate, each coated with an active material; a separator interposed between the positive plate and the negative plate a plurality of first weld lines arranged at angles with respect to one another on the positive collector plate for welding the positive collector plate to the positive plate; and a plurality of second weld lines arranged at angles with respect to one another on the negative collector plate for welding the negative collector plate to the negative plate, wherein the first weld lines and the second weld lines are offset from one another by about 90 degrees. - View Dependent Claims (2, 3, 4)
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5. A secondary battery comprising:
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positive and negative collector plates; a positive plate and a negative plate, each coated with an active material; a separator interposed between the positive plate and the negative plate a plurality of first weld lines arranged at angles with respect to one another on the positive collector plate for welding the positive collector plate to the positive plate; and a plurality of second weld lines arranged at angles with respect to one another on the negative collector plate for welding the negative collector plate to the negative plate, wherein the first weld lines and the second weld lines are offset from one another by an offset angle from about 10 degrees to about 80 degrees. - View Dependent Claims (6)
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7. A secondary battery comprising:
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positive and negative collector plates; a positive plate and a negative plate, each having an uncoated region which has not been coated with an active material; a separator interposed between the positive plate and the negative plate a positive weld line on the positive collector plate for welding the positive collector plate to the uncoated region of the positive plate; and a negative weld line on the negative collector plate for welding the negative collector plate to the uncoated region of the negative plate, wherein the positive and negative weld lines are offset from one another by about 90 degrees. - View Dependent Claims (8, 9, 10, 11)
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12. A secondary battery comprising:
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positive and negative collector plates; a positive plate and a negative plate, each having an uncoated region which has not been coated with an active material; a separator interposed between the positive plate and the negative plate a positive weld line on the positive collector plate for welding the positive collector plate to the uncoated region of the positive plate; and a negative weld line on the negative collector plate for welding the negative collector plate to the uncoated region of the negative plate, wherein the positive and negative weld lines are offset from one another by an offset angle of from about 10 degrees to about 80 degrees. - View Dependent Claims (13)
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14. A secondary battery comprising:
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positive and negative collector plates; a positive plate and a negative plate, each coated with an active material; a separator interposed between the positive plate and the negative plate a plurality of first weld lines arranged at angles with respect to one another on the positive collector plate for welding the positive collector plate to the positive collector plate; and a plurality of second weld lines arranged at angles with respect to one another on the negative collector plate for welding the negative collector plate to the negative collector plate wherein the first weld lines and the second weld lines are offset from one another by about 45 degrees. - View Dependent Claims (15, 16, 17, 18)
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19. A secondary battery comprising:
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positive and negative collector plates; a positive plate and a negative plate, each coated with an active material; a separator interposed between the positive plate and the negative plate a plurality of first weld lines arranged at angles with respect to one another on the positive collector plate for welding the positive collector plate to the positive collector plate; and a plurality of second weld lines arranged at angles with respect to one another on the negative collector plate for welding the negative collector plate to the negative collector plate, wherein the first weld lines and the second weld lines are offset from one another by an offset angle from about 10 degrees to about 80 degrees.
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Specification