<p>Disclosed is the structure of a center pin inserted into the winding center of a winding-type electrode assembly of an electrochemical device, which has a case containing the winding-type eLectrode assembly. The center pin can be manufactured through a simple process and can secure the safety of an electrochemical device when physical impact (e.g. squeezing, shock) is applied from the outside or when the internal temperature rises. The center pin is manufactured by winding a planar substrate, which has at least two protrusions formed in an embossing type or which has at least two scores formed in a predetermined shape, into a tubular shape.</p>
申请公布号
WO2008050980(A1)
申请公布日期
2008.05.02
申请号
WO2007KR05183
申请日期
2007.10.22
申请人
LG CHEM, LTD.;PARK, YOUNG-SUN;OH, BYUNG-HUN;PARK, PIL-KYU;LEE, YONG-TAE;LEE, JAE-WON;LEE, MYOUNG-HUN
发明人
PARK, YOUNG-SUN;OH, BYUNG-HUN;PARK, PIL-KYU;LEE, YONG-TAE;LEE, JAE-WON;LEE, MYOUNG-HUN