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1.发明申请公开(公告)号：US20160156032A1
公开(公告)日：2016-06-02
申请号：US14707986
申请日：2015-05-08
发明人： Daehoe Lee , Sangwoo Cho , Sooyoun Park , Changwook Kim , Dohyung Park
IPC分类号： H01M4/525 , C01G51/00 , H01M4/505 , H01M10/052 , H01M4/485
CPC分类号： H01M4/525 , C01G51/42 , C01G51/66 , C01P2002/50 , C01P2002/52 , C01P2002/72 , C01P2002/77 , C01P2004/03 , C01P2004/51 , C01P2004/61 , C01P2006/40 , H01M4/505 , H01M10/052 , H01M2004/028 , Y02T10/7011
摘要： Provided are a positive active material, a positive electrode including the same, and a lithium secondary battery including the positive electrode. The positive active material includes lithium cobalt oxide containing a metal element, and the lithium cobalt oxide containing a metal element has a ratio of a peak intensity of the O3 phase to a peak intensity of the H1-3 phase, IO3/IH1-3, that is greater than 1 in a X-ray diffraction (XRD) analysis spectrum using Cu-Kα radiation. Accordingly, a lithium secondary battery including the positive active material may have improved lifespan characteristics even at a high voltage.
摘要翻译： 提供一种正极活性物质，包括该正极活性物质的正极和包含该正极的锂二次电池。 正极活性物质包含含有金属元素的锂钴氧化物，含有金属元素的锂钴氧化物具有O 3相的峰值强度与H1-3相峰值强度的比值，IO3 / IH1-3， 在使用Cu-Kα辐射的X射线衍射（XRD）分析光谱中大于1。 因此，包含正极活性物质的锂二次电池即使在高电压下也可具有改善的寿命特性。
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公开(公告)号：US09806341B2
公开(公告)日：2017-10-31
申请号：US14707986
申请日：2015-05-08
发明人： Daehoe Lee , Sangwoo Cho , Sooyoun Park , Changwook Kim , Dohyung Park
IPC分类号： H01M4/525 , C01G51/00 , H01M4/505 , H01M10/052 , H01M4/02
CPC分类号： H01M4/525 , C01G51/42 , C01G51/66 , C01P2002/50 , C01P2002/52 , C01P2002/72 , C01P2002/77 , C01P2004/03 , C01P2004/51 , C01P2004/61 , C01P2006/40 , H01M4/505 , H01M10/052 , H01M2004/028 , Y02T10/7011
摘要： Provided are a positive active material, a positive electrode including the same, and a lithium secondary battery including the positive electrode. The positive active material includes lithium cobalt oxide containing a metal element, and the lithium cobalt oxide containing a metal element has a ratio of a peak intensity of the O3 phase to a peak intensity of the H1-3 phase, IO3/IH1-3, that is greater than 1 in a X-ray diffraction (XRD) analysis spectrum using Cu-Kα radiation. Accordingly, a lithium secondary battery including the positive active material may have improved lifespan characteristics even at a high voltage.
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