Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2010/079956
Kind Code:
A2
Abstract:
The present invention provides a positive electrode active material for a lithium secondary battery, comprising a lithium transition metal oxide having a surface coated with carbon particles and polymer resin, wherein said polymer resin is inactive to an electrolyte and an organic solvent for the lithium secondary battery, and has a melting point of 80°C or higher. The lithium secondary battery comprising the positive electrode active material according to the present invention has remarkably improved rate characteristics and high temperature safety, and can exert superior battery characteristics.
Inventors:
CHANG, Sung kyun (106-901, Chonggu Narae Apt.Jeonmin-dong, Yuseong-gu, Daejeon 305-729, 305-729, KR)
장성균 (대전광역시 유성구 전민동 청구나래아파트 106동 901호, 305-729 Daejeon, 305-729, KR)
PARK, Hong-Kyu (3 Songrimmaeul Apt, Hagi-dong Yuseong-gu, Daejeon 305-759, 305-759, KR)
박홍규 (대전광역시 유성구 하기동 송림마을아파트 301동 1306호, 305-759 Daejeon, 305-759, KR)
PARK, Sinyoung (1 Sejong Apt, Jeonmin-dong Yuseong-gu, Daejeon 305-728, 305-728, KR)
장성균 (대전광역시 유성구 전민동 청구나래아파트 106동 901호, 305-729 Daejeon, 305-729, KR)
PARK, Hong-Kyu (3 Songrimmaeul Apt, Hagi-dong Yuseong-gu, Daejeon 305-759, 305-759, KR)
박홍규 (대전광역시 유성구 하기동 송림마을아파트 301동 1306호, 305-759 Daejeon, 305-759, KR)
PARK, Sinyoung (1 Sejong Apt, Jeonmin-dong Yuseong-gu, Daejeon 305-728, 305-728, KR)
Application Number:
KR2010/000074
Publication Date:
July 15, 2010
Filing Date:
January 06, 2010
Export Citation:
Assignee:
LG CHEM, LTD. (20 Yoido-dong, Youngdungpo-gu, Seoul 150-721, 150-721, KR)
주식회사 엘지화학 (서울특별시 영등포구 여의도동 20번지, 150-721 Seoul, 150-721, KR)
CHANG, Sung kyun (106-901, Chonggu Narae Apt.Jeonmin-dong, Yuseong-gu, Daejeon 305-729, 305-729, KR)
장성균 (대전광역시 유성구 전민동 청구나래아파트 106동 901호, 305-729 Daejeon, 305-729, KR)
PARK, Hong-Kyu (3 Songrimmaeul Apt, Hagi-dong Yuseong-gu, Daejeon 305-759, 305-759, KR)
박홍규 (대전광역시 유성구 하기동 송림마을아파트 301동 1306호, 305-759 Daejeon, 305-759, KR)
주식회사 엘지화학 (서울특별시 영등포구 여의도동 20번지, 150-721 Seoul, 150-721, KR)
CHANG, Sung kyun (106-901, Chonggu Narae Apt.Jeonmin-dong, Yuseong-gu, Daejeon 305-729, 305-729, KR)
장성균 (대전광역시 유성구 전민동 청구나래아파트 106동 901호, 305-729 Daejeon, 305-729, KR)
PARK, Hong-Kyu (3 Songrimmaeul Apt, Hagi-dong Yuseong-gu, Daejeon 305-759, 305-759, KR)
박홍규 (대전광역시 유성구 하기동 송림마을아파트 301동 1306호, 305-759 Daejeon, 305-759, KR)
International Classes:
H01M4/48; B60L11/18; H01M4/58; H01M4/60
Attorney, Agent or Firm:
SOHN, Chang Kyu (1403, Seongji Heights 2-cha Bldg.642-16, Yoksam 1-dong, Kangnam-gu, Seoul 135-910, 135-910, KR)
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