Title:
CATHODE ACTIVE MATERIAL CONTAINING LITHIUM MANGANESE OXIDE THAT EXHIBITS EXCELLENT CHARGE-DISCHARGE CHARACTERISTICS IN 4V AND 3V REGIONS
Document Type and Number:
WIPO Patent Application WO/2011/084003
Kind Code:
A2
Abstract:
The present invention relates to a cathode active material containing lithium manganese oxide; and in particular to a cathode active material containing lithium manganese oxide that has a spinel structure of the composition represented by Formula 1 in the Description and a conductive material coated over the surface of particles of the lithium manganese oxide, thereby exhibiting excellent charge-discharge characteristics not only in a 4V region but also in a 2.5 to 3.5V region.
Inventors:
NOH, Hyun Kuk (103-703, Samsung Pureun Apt.Jeonmin-dong, Yuseong-gu, Daejeon 305-727, 305-727, KR)
노현국 (대전광역시 유성구 전민동 삼성푸른아파트 103동 703호, 305-727 Daejeon, 305-727, KR)
KIM, Sin Kyu (3-309, LG Chem Sawon Apt.386-1, Doryong-dong, Yuseong-gu, Daejeon 305-340, 305-340, KR)
김신규 (대전광역시 유성구 도룡동 386-1번지 LG화학사원아파트 3동 309호, 305-340 Daejeon, 305-340, KR)
CHUNG, Geun-Chang (2 Banseokmaeul Apt, Jijok-dong Yuseong-gu, Daejeon 305-772, 305-772, KR)
정근창 (대전광역시 유성구 지족동 반석마을아파트 211동 1201호, 305-772 Daejeon, 305-772, KR)
노현국 (대전광역시 유성구 전민동 삼성푸른아파트 103동 703호, 305-727 Daejeon, 305-727, KR)
KIM, Sin Kyu (3-309, LG Chem Sawon Apt.386-1, Doryong-dong, Yuseong-gu, Daejeon 305-340, 305-340, KR)
김신규 (대전광역시 유성구 도룡동 386-1번지 LG화학사원아파트 3동 309호, 305-340 Daejeon, 305-340, KR)
CHUNG, Geun-Chang (2 Banseokmaeul Apt, Jijok-dong Yuseong-gu, Daejeon 305-772, 305-772, KR)
정근창 (대전광역시 유성구 지족동 반석마을아파트 211동 1201호, 305-772 Daejeon, 305-772, KR)
Application Number:
KR2011/000104
Publication Date:
July 14, 2011
Filing Date:
January 07, 2011
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)
NOH, Hyun Kuk (103-703, Samsung Pureun Apt.Jeonmin-dong, Yuseong-gu, Daejeon 305-727, 305-727, KR)
노현국 (대전광역시 유성구 전민동 삼성푸른아파트 103동 703호, 305-727 Daejeon, 305-727, KR)
KIM, Sin Kyu (3-309, LG Chem Sawon Apt.386-1, Doryong-dong, Yuseong-gu, Daejeon 305-340, 305-340, KR)
김신규 (대전광역시 유성구 도룡동 386-1번지 LG화학사원아파트 3동 309호, 305-340 Daejeon, 305-340, KR)
CHUNG, Geun-Chang (2 Banseokmaeul Apt, Jijok-dong Yuseong-gu, Daejeon 305-772, 305-772, KR)
주식회사 엘지화학 (서울특별시 영등포구 여의도동 20번지, 150-721 Seoul, 150-721, KR)
NOH, Hyun Kuk (103-703, Samsung Pureun Apt.Jeonmin-dong, Yuseong-gu, Daejeon 305-727, 305-727, KR)
노현국 (대전광역시 유성구 전민동 삼성푸른아파트 103동 703호, 305-727 Daejeon, 305-727, KR)
KIM, Sin Kyu (3-309, LG Chem Sawon Apt.386-1, Doryong-dong, Yuseong-gu, Daejeon 305-340, 305-340, KR)
김신규 (대전광역시 유성구 도룡동 386-1번지 LG화학사원아파트 3동 309호, 305-340 Daejeon, 305-340, KR)
CHUNG, Geun-Chang (2 Banseokmaeul Apt, Jijok-dong Yuseong-gu, Daejeon 305-772, 305-772, KR)
International Classes:
H01M4/505; B60L11/18; H01M4/525; H01M10/0525
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)
Claims: