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:
Oct. 01, 2013
Filed:
Nov. 20, 2009
Yongju Lee, Daejeon, KR;
Jeyoung Kim, Daejeon, KR;
Oujung Kwon, Daejeon, KR;
Byung Hun OH, Daejeon, KR;
Insung Uhm, Daejeon, KR;
Seungyoun Choi, Daejeon, KR;
Yongju Lee, Daejeon, KR;
Jeyoung Kim, Daejeon, KR;
Oujung Kwon, Daejeon, KR;
Byung Hun Oh, Daejeon, KR;
Insung Uhm, Daejeon, KR;
Seungyoun Choi, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
The disclosure relates to an electrode active material including: (a) first particulate of a metal (or metalloid) oxide alloyable with lithium; and (b) second particulate of an oxide containing lithium and the same metal (or metalloid) as that of the metal (or metalloid) oxide, and to a secondary battery including the electrode active material. When the electrode active material is used as an anode active material, reduced amounts of an irreversible phase such as a lithium oxide or a lithium metal oxide are produced during initial charge-discharge of a battery since lithium is already contained in the second particulate before the initial charge-discharge, and thus a dead volume on the side of the cathode can be minimized and a high-capacity battery can be fabricated.