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:
Feb. 26, 2013
Filed:
Jan. 04, 2012
Hey Woong Park, Daejeon, KR;
Seungtaek Hong, Seoul, KR;
Ra Young Hwang, Daejeon, KR;
Jisang Yu, Daejeon, KR;
John E. Namgoong, Daejeon, KR;
Hey Woong Park, Daejeon, KR;
Seungtaek Hong, Seoul, KR;
Ra Young Hwang, Daejeon, KR;
Jisang Yu, Daejeon, KR;
John E. Namgoong, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
The present invention relates to a lithium secondary battery comprising a battery cell formed by stacking a plurality of full cells having a structure of cathode/separator/anode or bicells having a structure of cathode(anode)/separator/anode(cathode)/separator/cathode (anode), as a unit electrode assembly, wherein (i) a cathode active material or (ii) an anode active material or (iii) a cathode active material and an anode active material in two or more unit electrode assemblies are configured to have a different composition to induce a voltage difference and separate electrode terminals are installed in a battery case according to the voltage difference to thereby simultaneously provide two or more voltages by a single battery.