公开(公告)号：US20130260200A1

公开(公告)日：2013-10-03

申请号：US13905389

申请日：2013-05-30

Applicant: LG CHEM, LTD.

Inventor： Youngkwang YUN ,  Sangbaek RYU ,  Jinsoo LEE ,  SooRyoung KIM ,  Byungjin CHOI ,  Hyang Mok LEE

IPC: H01M10/04

CPC classification number: H01M10/0431 ,  H01M2/0275 ,  H01M2/0287 ,  H01M2/166 ,  H01M2/1673 ,  H01M10/0409 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0587 ,  H01M10/4235 ,  Y02E60/12 ,  Y10T29/49108 ,  Y10T29/49115

Abstract: Provided is a method for fabrication of a jelly-roll type electrode assembly having a cathode/separation membrane/anode laminate structure, including: (a) coating both sides of a porous substrate with organic/inorganic composite layers, each of which includes inorganic particles and an organic polymer as a binder, so as to fabricate a composite membrane; and (b) inserting one end of a sheet laminate comprising a cathode sheet and an anode sheet as well as the composite membrane into a mandrel, winding the sheet laminate around the mandrel, and then, removing the mandrel, wherein the organic/inorganic composite layer includes microfine pores capable of moderating a variation in volume during charge/discharge of a secondary battery and an interfacial friction coefficient between the composite membrane and the mandrel is not more than 0.28.

Abstract translation: 提供一种具有阴极/分离膜/阳极层压结构的胶卷式电极组件的制造方法，其包括：（a）用有机/无机复合层涂覆多孔基材的两面，每层包括无机颗粒 和作为粘合剂的有机聚合物，以制造复合膜; 和（b）将包括阴极片和阳极片的片状叠层的一端以及复合膜插入心轴中，将片状层压体缠绕在心轴上，然后移除心轴，其中有机/无机复合物 层包括能够调节二次电池的充放电期间体积变化的微细孔，并且复合膜和心轴之间的界面摩擦系数不大于0.28。

公开(公告)号：US20140106212A1

公开(公告)日：2014-04-17

申请号：US14071058

申请日：2013-11-04

Applicant: LG CHEM, LTD.

Inventor： Seungeun CHOI ,  Eunyoung GOH ,  Hyang Mok LEE ,  Heegyoung KANG ,  Sangbaek RYU ,  Kiwoong KIM

IPC: H01M4/36

CPC classification number: H01M4/364 ,  H01M2/0287 ,  H01M2/1633 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/1673 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/622 ,  H01M4/623 ,  H01M10/052 ,  H01M2004/028 ,  Y02E60/122 ,  Y02T10/7011

Abstract: Disclosed is a cathode material comprising a mixture of an oxide powder (a) defined herein and an oxide powder (b) selected from the group consisting of an oxide powder (b1) defined herein and an oxide powder (b2) defined herein and a combination thereof wherein a mix ratio of the two oxide powders (oxide powder (a): oxide powder (b)) is 50:50 to 90:10. The cathode material uses a combination of an oxide powder (a) and 50% or less of an oxide powder (b) which can exert high capacity, high cycle stability, superior storage stability and high-temperature stability, thus advantageously exhibiting high energy density and realizing high capacity batteries.

Abstract translation: 公开了一种阴极材料，其包含本文定义的氧化物粉末（a）和选自本文定义的氧化物粉末（b1）和本文定义的氧化物粉末（b2）的氧化物粉末（b）的混合物和组合 其中两种氧化物粉末（氧化物粉末（a）：氧化物粉末（b））的混合比为50:50至90:10。 阴极材料使用氧化物粉末（a）和50％以下的能够发挥高容量，高循环稳定性，优异的储存稳定性和高温稳定性的氧化物粉末（b）的组合，因此有利地表现出高能量密度 并实现高容量电池。

公开(公告)号：US20130187082A1

公开(公告)日：2013-07-25

申请号：US13789810

申请日：2013-03-08

Applicant: LG CHEM, LTD.

Inventor： Seungeun CHOI ,  Eunyoung GOH ,  Hyang Mok LEE ,  Heegyoung KANG ,  Sangbaek RYU ,  Kiwoong KIM

IPC: H01M4/525

CPC classification number: H01M4/525 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/1673 ,  H01M4/364 ,  H01M4/505 ,  H01M4/622 ,  H01M4/623 ,  H01M10/052 ,  H01M2004/028 ,  Y02T10/7011

Abstract: Disclosed is a secondary battery including a cathode, an anode, a membrane and an electrolyte, wherein the cathode contains a mixture of a first cathode material defined herein and a second cathode material selected from the group consisting of a second-(a) cathode material defined herein and a second-(b) cathode material defined herein, and a combination thereof, wherein a mix ratio of the two cathode materials (first cathode material: second cathode material) is 50:50 to 90:10, and the membrane is an organic/inorganic composite porous membrane including (a) a polyolefin-based membrane substrate and (b) an active layer in which one or more areas selected from the group consisting of the surface of the substrate and a portion of pores of the substrate are coated with a mixture of inorganic particles and a binder polymer, wherein the active layer has a structure in which the inorganic particles are interconnected and fixed through a binder polymer and porous structures are formed by the interstitial volume between the inorganic particles.

Abstract translation: 公开了包括阴极，阳极，膜和电解质的二次电池，其中阴极包含本文定义的第一阴极材料和第二阴极材料的混合物，第二阴极材料选自第二 - （a）阴极材料 本文定义的第二（b）阴极材料及其组合，其中两种阴极材料（第一阴极材料：第二阴极材料）的混合比为50:50至90:10，膜为 有机/无机复合多孔膜，其包含（a）聚烯烃类膜基材和（b）活性层，其中从由所述基材的表面和所述基材的孔的一部分组成的组中选择的一个或多个区域为 涂覆有无机颗粒和粘合剂聚合物的混合物，其中活性层具有其中无机颗粒通过粘合剂聚合物互连和固定的结构，并且多孔结构由 无机颗粒之间的间隙体积。