发明申请
- 专利标题： CATHODE MATERIALS HAVING HIGH ENERGY DENSITY AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME
- 专利标题（中）： 具有高能量密度的阴极材料和含有它的锂二次电池
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申请号： US13223754申请日： 2011-09-01
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公开(公告)号： US20120225343A1公开(公告)日： 2012-09-06
- 发明人: Seungeun CHOI , Eunyoung GOH , Hyang Mok LEE , Heegyoung KANG , Sangbaek RYU , Kiwoong KIM
- 申请人： Seungeun CHOI , Eunyoung GOH , Hyang Mok LEE , Heegyoung KANG , Sangbaek RYU , Kiwoong KIM
- 申请人地址： KR Seoul
- 专利权人： LG CHEM, LTD.
- 当前专利权人： LG CHEM, LTD.
- 当前专利权人地址： KR Seoul
- 优先权： KR10-2009-0018123 20090303
- 主分类号： H01M2/18
- IPC分类号： H01M2/18 ; H01B1/08
摘要：
Disclosed is a cathode material comprising a mixture of an oxide powder (a) defined herein and an oxide powder (b) selected from the group consisting of an oxide powder (b1) defined herein and an oxide powder (b2) defined herein and a combination thereof wherein a mix ratio of the two oxide powders (oxide powder (a): oxide powder (b)) is 50:50 to 90:10. The cathode material uses a combination of an oxide powder (a) and 50% or less of an oxide powder (b) which can exert high capacity, high cycle stability, superior storage stability and high-temperature stability, thus advantageously exhibiting high energy density and realizing high capacity batteries.