The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2014
Filed:
Apr. 22, 2008
Jong-hun Kim, Daejeon, KR;
Hyun-min Jang, Daejeon, KR;
Jang-hyuk Hong, Daejeon, KR;
Joon-yong Sohn, Daejeon, KR;
Sang-young Lee, Daejeon, KR;
Jong-Hun Kim, Daejeon, KR;
Hyun-Min Jang, Daejeon, KR;
Jang-Hyuk Hong, Daejeon, KR;
Joon-Yong Sohn, Daejeon, KR;
Sang-Young Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
An electrochemical device includes a plurality of unit cells, each having a first separator and a cathode and an anode positioned at both sides of the first separator, and a continuous single second separator interposed between adjacent unit cells in correspondence with each other in a laminated pattern and arranged to surround each unit cell. The first separator includes a heat-resisting porous substrate having a melt point of 200° C. or above and a first porous coating layer formed on at least one surface of the heat-resisting porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer. The second separator includes a polyolefin porous substrate and a second porous coating layer formed on at least one surface of the polyolefin porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer.