公开(公告)号：US08129049B2

公开(公告)日：2012-03-06

申请号：US12532687

申请日：2008-03-24

申请人： Jong Hee Kim ,  Dongmyung Kim ,  Hyungook Yoon ,  Yong Jeong Kim ,  Joo-Hwan Sung ,  Seung W. Chu ,  Sung-Pil Yoon ,  Dohyun Lee

发明人： Jong Hee Kim ,  Dongmyung Kim ,  Hyungook Yoon ,  Yong Jeong Kim ,  Joo-Hwan Sung ,  Seung W. Chu ,  Sung-Pil Yoon ,  Dohyun Lee

IPC分类号： H01M4/00 ,  H01M4/13 ,  H01M6/48 ,  H01M10/18

CPC分类号： H01M10/0431 ,  H01M10/0587

摘要： Disclosed herein is a jelly-roll type electrode assembly (“jelly-roll”) of a cathode/separator/anode structure, wherein the jelly-roll is constructed in a structure in which each electrode has active material layers formed on opposite major surfaces of a sheet-type current collector, the loading amount of an active material for the inner active material layer, constituting the inner surface of each sheet when each sheet is wound, is less than that of an active material for the outer active material layer, constituting the outer surface of each sheet when each sheet is wound, and the loading amount of the active material for the inner active material layer gradually increases from the central region of each wound sheet to the outermost region of each wound sheet.

摘要翻译： 本文公开了阴极/分离器/阳极结构的胶卷式电极组件（“胶卷”），其中胶卷被构造成其中每个电极具有形成在相对主表面上的活性材料层的结构 构成片材每个片材的内表面的构成内部活性物质层的活性物质的负载量小于外部活性物质层的活性物质的负载量，构成 每个片材被卷绕时的每个片材的外表面，并且用于内部活性材料层的活性材料的负载量从每个缠绕片材的中心区域逐渐增加到每个缠绕片材的最外部区域。

公开(公告)号：US20080050655A1

公开(公告)日：2008-02-28

申请号：US11776667

申请日：2007-07-12

申请人： Seung Woo CHU ,  Sung-Pil YOON ,  Dohyun LEE ,  Dongmyung KIM ,  Joo-Hwan SUNG ,  Yong Jeong KIM ,  Hyungook YOON ,  Jong Hee KIM

发明人： Seung Woo CHU ,  Sung-Pil YOON ,  Dohyun LEE ,  Dongmyung KIM ,  Joo-Hwan SUNG ,  Yong Jeong KIM ,  Hyungook YOON ,  Jong Hee KIM

IPC分类号： H01M4/58 ,  H01B1/18 ,  H01M10/36

CPC分类号： H01M4/625 ,  H01M4/131 ,  H01M4/364 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021

摘要： Provided is a cathode mix for a lithium secondary battery, comprising a cathode active material, a conductive material and a binder, wherein the cathode mix uses a mixture of a flake-like carbon material (a), and a spherical chain-like carbon material (b) in a weight ratio (a/b) of 0.01 to 1 as the conductive material; and a lithium secondary battery comprising the same. Use of the conductive material according to the present invention can achieve simultaneous improvements in conductivity and loading density of the cathode mix, provide excellent discharge characteristics even with increased loading amounts of the cathode mix, and secure performance uniformity between the battery cells.

摘要翻译： 提供一种用于锂二次电池的阴极混合物，其包括阴极活性材料，导电材料和粘合剂，其中阴极混合物使用片状碳材料（a）和球形链状碳材料 （b）作为导电材料的重量比（a / b）为0.01〜1; 和包含该锂二次电池的锂二次电池。 根据本发明的导电材料的使用可以实现阴极混合物的导电性和负载密度的同时改善，即使在阴极混合物的负载量增加的情况下也能提供优异的放电特性，并且在电池单元之间具有稳定的性能均匀性。

公开(公告)号：US20100104930A1

公开(公告)日：2010-04-29

申请号：US12532687

申请日：2008-03-24

申请人： Jong Hee Kim ,  Dongmyung Kim ,  Hyungook Yoon ,  Yong Jeong Kim ,  Joo-Hwan Sung ,  Seung W. Chu ,  Sung-Pil Yoon ,  Dohyun Lee

发明人： Jong Hee Kim ,  Dongmyung Kim ,  Hyungook Yoon ,  Yong Jeong Kim ,  Joo-Hwan Sung ,  Seung W. Chu ,  Sung-Pil Yoon ,  Dohyun Lee

IPC分类号： H01M6/10

CPC分类号： H01M10/0431 ,  H01M10/0587

摘要： Disclosed herein is a jelly-roll type electrode assembly (“jelly-roll”) of a cathode/separator/anode structure, wherein the jelly-roll is constructed in a structure in which each electrode has active material layers formed on opposite major surfaces of a sheet-type current collector, the loading amount of an active material for the inner active material layer, constituting the inner surface of each sheet when each sheet is wound, is less than that of an active material for the outer active material layer, constituting the outer surface of each sheet when each sheet is wound, and the loading amount of the active material for the inner active material layer gradually increases from the central region of each wound sheet to the outermost region of each wound sheet.

摘要翻译： 本文公开了阴极/分离器/阳极结构的胶卷式电极组件（“胶卷”），其中胶卷被构造成其中每个电极具有形成在相对主表面上的活性材料层的结构 构成片材每个片材的内表面的构成内部活性物质层的活性物质的负载量小于外部活性物质层的活性物质的负载量，构成 每个片材被卷绕时的每个片材的外表面，并且用于内部活性材料层的活性材料的负载量从每个缠绕片材的中心区域逐渐增加到每个缠绕片材的最外部区域。