公开(公告)号：US20130216870A1

公开(公告)日：2013-08-22

申请号：US13859071

申请日：2013-04-09

Applicant: LG CHEM, LTD.

Inventor： Sung-Jong KIM ,  Cha-Hun KU ,  Je-Jun LEE

IPC: H01M2/08 ,  H01M2/34 ,  H01M2/12

CPC classification number: H01M2/08 ,  H01M2/0217 ,  H01M2/022 ,  H01M2/024 ,  H01M2/0413 ,  H01M2/0426 ,  H01M2/046 ,  H01M2/0473 ,  H01M2/12 ,  H01M2/1241 ,  H01M2/34 ,  H01M2/348 ,  H01M10/0422 ,  H01M2200/106

Abstract: Cap assembly, coupled to an open end of a battery can free from a beading portion, includes a top cap at an uppermost portion in a protrusive form forming a cathode terminal, a safety element below the top cap contacting the top cap, a safety vent contacting the safety element, a gasket surrounding outer circumferences of top cap, the safety element and vent, a cover surrounding the gasket so the top cap, safety element and vent adhere to each other, and a welding member at an upper portion of the cover having an outer end protruding more outwards than the outer end of the cover placed on the open end of the battery can, the welding member having a first notch at an upper surface thereof, protruding more than the outer end of the cover, and welded to the open end of the battery can where first notch is formed.

Abstract translation: 盖子组件耦合到电池的开口端可以免于卷边部分，在最上部形成顶盖，形成阴极端子的突出形式，位于顶盖下方的安全元件接触顶盖，安全孔 接触安全元件，围绕顶盖的外周的垫圈，安全元件和通风口，围绕垫圈的盖，使得顶盖，安全元件和通风口彼此粘合，以及在盖的上部处的焊接构件 具有比放置在电池罐的开口端上的盖的外端更向外突出的外端，焊接构件在其上表面具有比罩的外端突出的第一凹口，并且焊接到 电池的开口端可以形成第一凹口。

公开(公告)号：US20180053974A1

公开(公告)日：2018-02-22

申请号：US15554311

申请日：2016-04-15

Applicant: LG CHEM, LTD.

Inventor： Je-Jun LEE ,  Hang-Soo SHIN ,  Do-Gyun KIM ,  Byoung-Gu LEE ,  Sang-Sok JUNG

IPC: H01M10/48 ,  H01M10/0525 ,  H01M10/42 ,  H01M2/04

CPC classification number: H01M10/488 ,  H01M2/04 ,  H01M2/043 ,  H01M2/0478 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/4228 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/0017 ,  Y02T10/7011

Abstract: The present disclosure relates to a case for a secondary battery and a secondary battery having the same. More specifically, it relates to a case for a secondary battery having a washer for detecting leakage with a structure improved so as to check leakage of an electrolyte and a secondary battery having the same.A lithium ion secondary battery according to the present disclosure provides an effect of easily checking the leakage of an electrolyte with naked eyes through the color change of a washer when a trace amount of the electrolyte leaks.

公开(公告)号：US20130273401A1

公开(公告)日：2013-10-17

申请号：US13917708

申请日：2013-06-14

Applicant: LG CHEM, LTD.

Inventor： Je-Jun LEE ,  Sung-Jong KIM ,  Cha-Hun KU

IPC: H01M2/08

CPC classification number: H01M2/08 ,  H01M2/022 ,  H01M2/0413 ,  H01M2/1241 ,  H01M2/345 ,  H01M2/348 ,  H01M2200/106

Abstract: Provided is a cylindrical secondary battery, comprising an electrode assembly having a cathode plate, an anode plate, and a separator interposed therebetween; a case for receiving the electrode assembly; a cap assembly for sealing an open-end of the case; and a gasket interposed between the case and the cap assembly, wherein the gasket is made of a polymer resin having a melting point of 200° C. or higher and a hardness of 100D or less.

Abstract translation: 本发明提供一种圆柱形二次电池，其包括具有阴极板，阳极板和间隔件的电极组件; 用于接收电极组件的壳体; 用于密封壳体的开口端的盖组件; 以及插入在所述壳体和所述盖组件之间的垫圈，其中所述垫圈由熔点为200℃以上且硬度为100D以下的聚合物树脂制成。