公开(公告)号：US20160322618A1

公开(公告)日：2016-11-03

申请号：US15105948

申请日：2015-01-09

Applicant: LG CHEM, LTD.

Inventor： Yu Na JEONG ,  Moon Young JUNG ,  Dong-Myung KIM ,  Ki Tae KIM ,  Sungwon LEE

IPC: H01M2/14 ,  H01M2/02 ,  H01M10/058 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/04 ,  H01M4/485

CPC classification number: H01M2/14 ,  H01M2/0285 ,  H01M2/0287 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/1686 ,  H01M4/485 ,  H01M4/5825 ,  H01M10/04 ,  H01M10/0459 ,  H01M10/0463 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/0583 ,  H01M10/4235 ,  H01M2200/00

Abstract: Disclosed herein is an electrode assembly configured to have a structure in which two or more unit cells are sequentially stacked or a structure in which two or more unit cells are folded using a long sheet type separation film, wherein the unit cells include bi-cells, each of which includes a positive electrode, a negative electrode, and a separator, at least one of the bi-cells includes a safety electrode configured such that an electrode active material is applied only to one major surface of an electrode current collector, the safety electrode includes a first surface, to which no electrode active material is applied, and a second surface, to which the electrode active material is applied, and the at least one of the bi-cells including the safety electrode is configured such that a safety separator, having a thickness equivalent to 110% to 220% of a thickness of a separator disposed between a positive electrode and a negative electrode or between a negative electrode and a positive electrode excluding the safety electrode, is added to the first surface and/or the second surface of the safety electrode.

Abstract translation: 本文公开了一种电极组件，其被配置为具有其中两个或更多个单元电池被顺序堆叠的结构或其中使用长片型分离膜折叠两个或更多个单元电池的结构，其中所述单元电池包括双电池， 其中的每一个包括正电极，负电极和隔板，至少一个双电池包括安全电极，其构造成使得电极活性材料仅施加于电极集电器的一个主表面，安全性 电极包括未施加电极活性材料的第一表面和施加电极活性材料的第二表面，并且包括安全电极的所述至少一个双电池被构造成使得安全分离器 ，其厚度相当于设置在正极和负极之间或负极与正极之间的隔板的厚度的110％至220％ 除了安全电极之外的电极被添加到安全电极的第一表面和/或第二表面。

公开(公告)号：US20160308250A1

公开(公告)日：2016-10-20

申请号：US15101558

申请日：2015-01-09

Applicant: LG CHEM, LTD.

Inventor： Yu Na JEONG ,  Moon Young JUNG ,  Dong-Myung KIM ,  Ki Tae KIM ,  Sungwon LEE

IPC: H01M10/0583 ,  H01M2/02 ,  H01M10/0525 ,  H01M4/66 ,  H01M2/16

CPC classification number: H01M10/0583 ,  H01M2/0207 ,  H01M2/022 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/168 ,  H01M2/1686 ,  H01M4/661 ,  H01M10/0459 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/30

Abstract: Disclosed herein is a stacked/folded type electrode assembly configured to have a structure in which two or more unit cells, each of which includes a separator disposed between a positive electrode and a negative electrode, each having an electrode mixture including an electrode active material applied to a current collector, are wound using a sheet type separation film, wherein the positive electrode is configured to have a structure in which a positive electrode mixture is coated on an aluminum foil as the current collector and the negative electrode is configured to have a structure in which a negative electrode mixture is coated on a metal foil, other than the aluminum foil, as the current collector, the unit cells include one or more full-cells and/or bi-cells, one of the unit cells located at each outermost side of the electrode assembly is configured such that one outermost electrode of the unit cell is a single-sided electrode, the single-sided electrode being configured such that the electrode mixture is applied only to one major surface of the current collector facing the separator, and the separation film has higher elongation than the separator.

Abstract translation: 这里公开了一种堆叠/折叠型电极组件，其被配置为具有这样的结构，其中两个或更多个单元电池，每个单元电池包括设置在正电极和负电极之间的隔板，每个电池单元具有包括施加的电极活性材料的电极混合物 使用片状分离膜卷绕到集电体上，其中正极被配置为具有将作为集电体的铝箔上涂覆正极混合物的结构，并且将负极构造成具有结构 其中将负极混合物涂覆在除了铝箔之外的金属箔上作为集电器，单元电池包括一个或多个全电池和/或双电池，其中一个单元电池位于每个最外层 电极组件的一侧被配置为使得单元电池的一个最外电极是单面电极，单面电极被配置为t 将电极混合物仅施加到面向隔板的集电体的一个主表面上，并且分离膜具有比隔膜更高的伸长率。