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21. 发明授权

US06218048B1 Method of preliminarily heat treating positive electrodes of secondary lithium and lithium-ion Batteries and resulting positive electrodes and batteries 失效
标题翻译：二次锂离子和锂离子电池正极热处理方法及正极和电池
公开(公告)号：US06218048B1
公开(公告)日：2001-04-17
申请号：US09286969
申请日：1999-04-06
申请人： Vesselin Manev , Titus Faulkner , D. Wayne Barnette , John Francis Engel
发明人： Vesselin Manev , Titus Faulkner , D. Wayne Barnette , John Francis Engel
IPC分类号： H01M450
CPC分类号： H01M4/131 , H01M2/1673 , H01M4/04 , H01M4/0402 , H01M4/0442 , H01M4/1391 , H01M4/485 , H01M4/505 , H01M10/0525 , H01M10/0565 , H01M10/42 , H01M2004/028 , Y10T29/49108 , Y10T29/49115
摘要： The present invention includes a method of preparing secondary lithium and lithium-ion batteries with improved coulombic efficiency, improved cycling and storage performance at elevated temperatures, and lower rates of transition metal dissolution. In accordance with the present invention, the positive electrode material is thermally treated at a temperature of between 50° C. and 120° C. to produce a passivating film having lithium ion conductivity. The present invention also includes a secondary lithium or lithium-ion cell having positive electrode material covered with a thermally-activated thin passivating film having lithium ion conductivity and a positive electrode material formed of particles of a lithium intercalation compound with a passivating film on the surface of the particles.
摘要翻译：本发明包括一种制备二次锂和锂离子电池的方法，其具有提高的库仑效率，在升高的温度下改善的循环和储存性能以及较低的过渡金属溶解速率。根据本发明，在50℃〜120℃的温度下对正极材料进行热处理，得到具有锂离子传导性的钝化膜。本发明还包括具有由具有锂离子传导性的热活化薄钝化膜和由表面上具有钝化膜的锂嵌入化合物的颗粒形成的正极材料覆盖的正极材料的二次锂或锂离子电池的颗粒。

22. 发明授权

US6114064A Highly homogeneous spinel Li.sub.1+x Mn.sub.2-x O.sub.4 intercalation compounds and method for preparing same 失效
标题翻译：高均匀尖晶石Li1 + xMn2-xO4插层化合物及其制备方法
公开(公告)号：US6114064A
公开(公告)日：2000-09-05
申请号：US867190
申请日：1997-06-02
申请人： Vesselin Manev , Titus Faulkner
发明人： Vesselin Manev , Titus Faulkner
IPC分类号： C01G45/00 , H01M4/131 , H01M4/50 , H01M4/505 , H01M4/62 , H01M10/052 , H01M10/36
CPC分类号： H01M4/505 , C01G45/1242 , H01M4/131 , H01M4/623 , C01P2002/32 , C01P2002/72 , C01P2002/77 , C01P2006/40 , H01M10/052 , Y02P70/54
摘要： A novel method of preparing a spinel Li.sub.1+x Mn.sub.2-x O.sub.4 intercalation compound with low lattice distortion and a highly ordered and homogeneous structure for 4 V secondary lithium and lithium ion cells is provided. The method of preparing the spinel Li.sub.1+x Mn.sub.2-x O.sub.4 intercalation compound comprises mixing at least one manganese compound with at least one lithium compound and firing the mixture at three different temperature ranges with corresponding gas flow rates to form the spinel Li.sub.1+x Mn.sub.2-x O.sub.4 intercalation compounds. The spinel Li.sub.1+x Mn.sub.2-x O.sub.4 intercalation compounds have a mean X value of between about 0.01 and 0.05 and a full width at half maximum of the x-ray diffraction peaks at a diffraction angle 2.theta. of planes (400) and (440) using CuK.alpha..sub.1 rays of between about 0.10.degree. and 0.15.degree.. The spinel Li.sub.1+x Mn.sub.2-x O.sub.4 intercalation compounds may be used in the positive electrodes of secondary lithium and lithium ion cells to provide cells having high specific capacities and long cycling lives.
摘要翻译：提供了一种制备具有低晶格畸变的尖晶石Li1 + xMn2-xO4插层化合物和用于4V二次锂和锂离子电池的高度有序和均匀结构的新方法。制备尖晶石Li1 + xMn2-xO4插层化合物的方法包括将至少一种锰化合物与至少一种锂化合物混合，并在三种不同的温度范围内以相应的气体流速烧结该混合物以形成尖晶石Li1 + xMn2-xO4插层化合物。尖晶石Li1 + xMn2-xO4插入化合物的平均X值在平面（400）和（440）的衍射角2θ处的X射线衍射峰的平均X值为约0.01和0.05之间的全宽，使用约0.10°至0.15°之间的CuKα1射线。尖晶石Li1 + xMn2-xO4插层化合物可用于二次锂离子电池和锂离子电池的正电极，以提供具有高比容量和长循环寿命的电池。

23. 发明授权

US5718877A Highly homogeneous spinal Li.sub.1+x Mn.sub.2-x O.sub.4+y intercalation compounds and method for preparing same 失效
标题翻译：高度均匀的脊髓Li1 + xMn2-xO4 + y插层化合物及其制备方法
公开(公告)号：US5718877A
公开(公告)日：1998-02-17
申请号：US665408
申请日：1996-06-18
申请人： Vesselin Manev , Titus Faulkner
发明人： Vesselin Manev , Titus Faulkner
IPC分类号： C01B31/02 , C01G45/00 , H01M4/131 , H01M4/50 , H01M4/505 , H01M10/052 , H01M10/36 , C01G45/12
CPC分类号： H01M4/505 , C01G45/1242 , H01M4/131 , C01P2002/32 , C01P2002/72 , C01P2002/74 , C01P2006/12 , C01P2006/40 , H01M10/052
摘要： A novel method of preparing a spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compound with low lattice distortion and a highly ordered and homogeneous structure for 4 V secondary lithium and lithium ion cells is provided. The method of preparing the spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compound comprises providing a spinel Li.sub.1+X Mn.sub.2-X O.sub.4 intercalation compound having a lithium to manganese mole ratio of between about 1.02:2 and 1.1:2 and firing the spinel at different temperature ranges with corresponding gas flow rates to form the spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compounds. The spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compounds have a mean X value of between about 0.01 and 0.05, a mean Y value of between about -0.02 and 0.04 and a full width at half maximum of the x-ray diffraction peaks at a diffraction angle 2.theta. of planes (400) and (440) using CuK.alpha..sub.1 rays of between about 0.08.degree. and 0.13.degree.. The spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compounds may be used in the positive electrodes of secondary lithium and lithium ion cells to provide cells having high specific capacities and long cycling lives.
摘要翻译：提供了一种制备具有低晶格畸变的尖晶石Li1 + XMn2-XO4 + Y插层化合物和用于4 V二次锂和锂离子电池的高度有序和均匀结构的新方法。制备尖晶石Li1 + XMn2-XO4 + Y插层化合物的方法包括提供锂/锰摩尔比在约1.02:2至1.1:2之间的尖晶石Li1 + XMn2-XO4插层化合物，并在不同温度下烧制尖晶石范围与相应的气体流速形成尖晶石Li1 + XMn2-XO4 + Y插层化合物。尖晶石Li1 + XMn2-XO4 + Y插入化合物的平均X值在约0.01和0.05之间，平均Y值在约-0.02和0.04之间，并且x射线衍射峰的全宽度在使用约0.08和0.13之间的CuKα1射线的平面（400）和（440）的衍射角2θ。尖晶石Li1 + XMn2-XO4 + Y插层化合物可用于二次锂离子电池和锂离子电池的正电极，以提供具有高比容量和长循环寿命的电池。

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