Invention Grant
- Patent Title: Electrode active material for secondary battery and method for preparing the same
- Patent Title (中): 二次电池用电极活性物质及其制备方法
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Application No.: US13130153Application Date: 2009-11-20
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Publication No.: US08546019B2Publication Date: 2013-10-01
- Inventor: Yongju Lee , Jeyoung Kim , Oujung Kwon , Byung Hun Oh , Insung Uhm , Seungyoun Choi
- Applicant: Yongju Lee , Jeyoung Kim , Oujung Kwon , Byung Hun Oh , Insung Uhm , Seungyoun Choi
- Applicant Address: KR
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: WOPCT/KR2008/006836 20081120; WOPCT/KR2008/006929 20081124
- International Application: PCT/KR2009/006846 WO 20091120
- International Announcement: WO2010/058990 WO 20100527
- Main IPC: H01M4/13
- IPC: H01M4/13 ; H01M4/58

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.
Public/Granted literature
- US20110311875A1 ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND METHOD FOR PREPARING THE SAME Public/Granted day:2011-12-22
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