Invention Grant
- Patent Title: Method for regulating terminal voltage of cathode during overdischarge and cathode active material for lithium secondary battery
- Patent Title (中): 用于调节过放电时阴极端电压的方法和锂二次电池正极活性材料
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Application No.: US10950104Application Date: 2004-09-24
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Publication No.: US07695867B2Publication Date: 2010-04-13
- Inventor: Sung Kyun Chang , Seung Tae Hong , Hyeong Jin Kim , Duk Hyun Ryu , Eun Young Goh , Ho Chun Lee , Jun Yong Jeong , Jin Hee Yeon , Hyung Keun Lee
- Applicant: Sung Kyun Chang , Seung Tae Hong , Hyeong Jin Kim , Duk Hyun Ryu , Eun Young Goh , Ho Chun Lee , Jun Yong Jeong , Jin Hee Yeon , Hyung Keun Lee
- Applicant Address: KR
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR
- Agency: Cantor Colburn LLP
- Priority: KR10-2002-0015713 20020322; KR10-2002-0036438 20020627; KR10-2003-0066865 20030926; KR10-2003-0066866 20030926
- Main IPC: H01M4/58
- IPC: H01M4/58 ; H01M4/32

Abstract:
Disclosed is a method for regulating terminal voltage of a cathode during overdischarge. Also disclosed is a lithium secondary battery, which is low in capacity loss after overdischarge, having excellent capacity restorability after overdischarge and shows an effect of preventing a battery from swelling at a high temperature.
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