POUCH CASING MATERIAL FOR SECONDARY BATTERY
First Claim
1. A pouch casing material which comprises a first cup and a second cup stacked in such a manner that the insides of the cups face each other to form an electrode assembly receiving portion capable of enclosing an electrode assembly, the first cup and the second cup are spaced apart from each other with a cup connection having a predetermined width W interposed therebetween, and sealing portions extended from the cups and cup connection are formed integrally on the outer circumferential surface of the pouch casing material;
- each of the cups comprises a first lateral side portion extended from the cup connection and a second lateral side portion facing the first lateral side portion; and
the sum of the height Ha1 of the first lateral side portion of the first cup, the height Ha2 of the first lateral side portion of the second cup and the width W equals to the sum of the height Hb1 of the second lateral side portion of the first cup and the height Hb2 of the second lateral side portion of the second cup.
2 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure relates to a pouch casing material including two cups forming an electrode assembly receiving portion and formed integrally in one pouch film. The pouch casing material includes an upper pouch member and a lower pouch member formed integrally with each other, and the connection between the upper pouch member and the lower pouch member does not protrude toward the outside. Thus, the total length of a battery is reduced.
15 Citations
10 Claims
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1. A pouch casing material which comprises a first cup and a second cup stacked in such a manner that the insides of the cups face each other to form an electrode assembly receiving portion capable of enclosing an electrode assembly, the first cup and the second cup are spaced apart from each other with a cup connection having a predetermined width W interposed therebetween, and sealing portions extended from the cups and cup connection are formed integrally on the outer circumferential surface of the pouch casing material;
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each of the cups comprises a first lateral side portion extended from the cup connection and a second lateral side portion facing the first lateral side portion; and the sum of the height Ha1 of the first lateral side portion of the first cup, the height Ha2 of the first lateral side portion of the second cup and the width W equals to the sum of the height Hb1 of the second lateral side portion of the first cup and the height Hb2 of the second lateral side portion of the second cup. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification