发明授权
US06620400B2 Method of producing layered lithium metal oxides free of localized cubic spinel-like structural phases
有权
不含局部立方尖晶石状结构相的层状锂金属氧化物的制造方法
- 专利标题： Method of producing layered lithium metal oxides free of localized cubic spinel-like structural phases
- 专利标题（中）： 不含局部立方尖晶石状结构相的层状锂金属氧化物的制造方法
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申请号： US09952357申请日： 2001-09-12
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公开(公告)号： US06620400B2公开(公告)日： 2003-09-16
- 发明人: Yuan Gao , Marina Yakovleva , Hugh H. Wang , John F. Engel
- 申请人： Yuan Gao , Marina Yakovleva , Hugh H. Wang , John F. Engel
- 主分类号： C01D1500
- IPC分类号： C01D1500
摘要：
The present invention includes substantially single-phase lithium metal oxide compounds having hexagonal layered crystal structures that are substantially free of localized cubic spinel-like structural phases. The lithium metal oxides of the invention have the formula Li&agr;M&bgr;A&ggr;O2, wherein M is one or more transition metals, A is one or more dopants having an average oxidation state N such that +2.5≦N≦+3.5, 0.90≦&agr;≦1.10, and &bgr;+&ggr;=1. The present invention also includes dilithiated forms of these compounds, lithium and lithium-ion secondary batteries using these compounds as positive electrode materials, and methods of preparing these compounds.
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