公开(公告)号：US20150325832A1

公开(公告)日：2015-11-12

申请号：US14762640

申请日：2013-01-29

Applicant: Taira SAITO ,  Masato KAMIYA ,  Jyunpei TERASHIMA ,  Ayumu KAMAKURA ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  PRIMEARTH EV ENERGY CO., LTD. ,  KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Taira SAITO ,  Masato KAMIYA ,  Junpei TERASHIMA ,  Ayumu KAMAKURA ,  Shinji SUZUKI

IPC: H01M2/26 ,  H01M10/0525 ,  H01M2/30

CPC classification number: H01M2/263 ,  H01M2/0217 ,  H01M2/0473 ,  H01M2/305 ,  H01M10/0525 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A flat electrode body of a battery has a first-side curved end positioned on a first side of an electrode body width direction and a second-side curved end positioned on a second side. A positive electrode innermost curved portion of a positive electrode sheet is disposed inside the first-side curved end. When the dimension from a positive electrode connecting portion to the end on the first side of the electrode body is defined as a distance and the dimension from the positive electrode connecting portion to the end on the second side of the electrode body is defined as a distance, the positive electrode connecting portion being in the positive electrode protrusion wound portion and connected to a terminal connecting portion of a positive terminal member, the terminal connecting portion is connected to the positive electrode connecting portion at a position satisfying the condition Ha≧1.1Hb.

Abstract translation: 电池的扁平电极体具有位于电极体宽度方向的第一侧上的第一侧弯曲端和位于第二侧的第二侧弯曲端。 正极片的正极最内弯曲部分设置在第一侧弯曲端的内部。 当将从正极连接部分到电极体第一侧端部的尺寸定义为距离时，将从正极连接部分到电极体第二侧端部的尺寸定义为距离 正极连接部位于正极突起卷绕部，与正极端子部的端子连接部连接，端子连接部在满足条件Ha≥1.1Hb的位置与正极连接部连接。