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1. 发明公开

KR1020070012842A 라미네이트형 이차전지 및 그 전지팩 有权
标题翻译：层压型二次电池及其电池组
公开(公告)号：KR1020070012842A
公开(公告)日：2007-01-29
申请号：KR1020067024844
申请日：2005-04-21
申请人： 도요타 지도샤(주)
发明人： 다케우치도모야스 , 에비네요시아키 , 나카시마마코토 , 스즈키사토시
IPC分类号： H01M2/02 , H01M2/26 , H01M2/06
CPC分类号： H01M10/0436 , H01M2/0275 , H01M2/06 , H01M2/266 , H01M10/0525 , H01M10/0585
摘要： An electrode terminal (42) is joined, via a deformation restricting member (3), to an electrode collection part (12). Spaces (15,15) are defined above/under the electrode collection part (12) between laminate seals (2,2). The deformation restricting member (3) is disposed in the vicinity of an inner wall edge of an outer jacket including a seal part (23), thereby forming a deformation restricting part (22) for restricting the deformation into a laminate film (2). In an area extending from the front of the deformation restricting member (3) to a battery element (1), the laminate film (2) is opposed to the space (15), so that the laminate film (2) can be deformed in accordance with a change of the internal pressure. When the internal pressure is reduced, the shrinkage of the laminate film (2) can be localized at a deformation allowing part (21), so that a bending stress added to an end part (24) of the seal part (23) can be reduced. In this way, there can be provided a laminate type secondary battery and battery pack thereof wherein when the laminate film is bonded to hermetically seal and accommodate the battery element, even if the expansion and shrinkage are repeated in accordance with changes of the internal pressure, the concentration of stress to the bondage part of the laminate film can be suppressed. ® KIPO & WIPO 2007
摘要翻译：电极端子（42）通过变形限制构件（3）连接到电极收集部分（12）。在层压密封件（2,2）之间的电极收集部件（12）的上方/下方限定了间隙（15,15）。变形限制构件（3）设置在包括密封部（23）的外护套的内壁边缘附近，从而形成用于将变形限制为层压膜（2）的变形限制部（22）。在从变形限制构件（3）的前方延伸到电池元件（1）的区域中，层叠膜（2）与空间（15）相对，使得层压膜（2）能够变形根据内部压力的变化。当内部压力降低时，层压膜（2）的收缩率可以位于变形允许部分（21）处，使得加到密封部分（23）的端部（24）上的弯曲应力可以是降低。以这种方式，可以提供一种叠层型二次电池及其电池组，其中当层压膜被接合以气密地密封并容纳电池元件时，即使根据内部压力的变化重复膨胀和收缩，能够抑制层叠膜的粘合部的应力集中。 ®KIPO＆WIPO 2007

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