发明授权
- 专利标题： Negative active material, negative electrode including the same, lithium secondary battery including negative electrode, and method of preparing negative active material
- 专利标题（中）： 负极活性物质，包含该负极的负极，包含负极的锂二次电池以及负极活性物质的制备方法
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申请号： US13493731申请日： 2012-06-11
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公开(公告)号： US09115004B2公开(公告)日： 2015-08-25
- 发明人: Jong-Hee Lee , Yong-Mi Yu , Joa-Young Jeong , Jae-Myung Kim
- 申请人： Jong-Hee Lee , Yong-Mi Yu , Joa-Young Jeong , Jae-Myung Kim
- 申请人地址： KR Yongin-si, Gyeonggi-do
- 专利权人： SAMSUNG SDI CO., LTD.
- 当前专利权人： SAMSUNG SDI CO., LTD.
- 当前专利权人地址： KR Yongin-si, Gyeonggi-do
- 代理机构： Knobbe Martens Olson & Bear LLP
- 优先权： KR10-2011-0064919 20110630
- 主分类号： H01M4/485
- IPC分类号： H01M4/485 ; C01G23/04 ; C01G23/00 ; H01M4/131
摘要：
A negative active material comprising lithium titanate oxide having an area ratio of a diffraction peak of a (111) plane that appears at 2θ=18.3°±0.4 to a diffraction peak of a (311) plane that appears at 2θ=35.5°±0.4, in an XRD spectrum, in the range of about 2.2:1 to about 5.5:1, a negative electrode comprising the negative active material, a lithium secondary battery comprising the negative electrode, and a method of preparing the negative active material.