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公开(公告)号：US09139441B2
公开(公告)日：2015-09-22
申请号：US13354096
申请日：2012-01-19
申请人： Yogesh Kumar Anguchamy , Charan Masarapu , Haixia Deng , Yongbong Han , Subramanian Venkatachalam , Sujeet Kumar , Herman A. Lopez
发明人： Yogesh Kumar Anguchamy , Charan Masarapu , Haixia Deng , Yongbong Han , Subramanian Venkatachalam , Sujeet Kumar , Herman A. Lopez
IPC分类号： H01M4/525 , C01B33/023 , H01M4/134 , H01M4/38 , B82Y30/00 , H01M4/36 , H01M4/505 , H01M4/62 , H01M10/052 , H01M4/02 , H01M10/42
CPC分类号： C01B33/023 , B82Y30/00 , H01M4/134 , H01M4/362 , H01M4/366 , H01M4/386 , H01M4/505 , H01M4/525 , H01M4/622 , H01M4/625 , H01M10/052 , H01M2004/021 , H01M2010/4292 , Y02E60/122 , Y02T10/7011
摘要： A porous silicon based material comprising porous crystalline elemental silicon formed by reducing silicon dioxide with a reducing metal in a heating process followed by acid etching is used to construct negative electrode used in lithium ion batteries. Gradual temperature heating ramp(s) with optional temperature steps can be used to perform the heating process. The porous silicon formed has a high surface area from about 10 m2/g to about 200 m2/g and is substantially free of carbon. The negative electrode formed can have a discharge specific capacity of at least 1800 mAh/g at rate of C/3 discharged from 1.5V to 0.005V against lithium with in some embodiments loading levels ranging from about 1.4 mg/cm2 to about 3.5 mg/cm2. In some embodiments, the porous silicon can be coated with a carbon coating or blended with carbon nanofibers or other conductive carbon material.
摘要翻译： 使用包含在加热过程中随后用酸蚀刻还原二氧化硅形成的多孔结晶元素硅的多孔硅基材料来构造用于锂离子电池的负极。 可以使用温度逐渐升温的温度梯度来进行加热过程。 形成的多孔硅具有约10m 2 / g至约200m 2 / g的高表面积，并且基本上不含碳。 形成的负极可以具有至少1800mAh / g的放电比容量，其相对于锂从1.5V至0.005V释放的C / 3的速率，在一些实施方案中负载水平为约1.4mg / cm 2至约3.5mg / cm2。 在一些实施例中，多孔硅可以涂覆有碳涂层或与碳纳米纤维或其它导电碳材料混合。
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2.发明授权Metal halide coatings on lithium ion battery positive electrode materials and corresponding batteries 有权锂离子电池正极材料和相应电池上的金属卤化物涂层公开(公告)号：US08663849B2
公开(公告)日：2014-03-04
申请号：US12888131
申请日：2010-09-22
CPC分类号： H01M4/136 , H01M4/1315 , H01M4/13915 , H01M4/1397 , H01M4/366 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/582 , H01M10/052 , Y02T10/7011
摘要： Lithium ion battery positive electrode material are described that comprise an active composition comprising lithium metal oxide coated with an inorganic coating composition wherein the coating composition comprises a metal chloride, metal bromide, metal iodide, or combinations thereof. Desirable performance is observed for these coated materials. In particular, the non-fluoride metal halide coatings are useful for stabilizing lithium rich metal oxides.
摘要翻译： 描述了锂离子电池正极材料，其包含涂覆有无机涂料组合物的包含锂金属氧化物的活性组合物，其中涂料组合物包含金属氯化物，金属溴化物，金属碘化物或其组合。 对于这些涂覆材料观察到理想的性能。 特别地，非氟化物金属卤化物涂层可用于稳定富锂金属氧化物。
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3.发明授权Layer-layer lithium rich complex metal oxides with high specific capacity and excellent cycling 有权具有高比容量和优异循环性能的多层富锂复合金属氧化物公开(公告)号：US08394534B2
公开(公告)日：2013-03-12
申请号：US12869976
申请日：2010-08-27
申请人： Herman A. Lopez , Subramanian Venkatachalam , Deepak Kumaar Kandasamy Karthikeyan , Sujeet Kumar
发明人： Herman A. Lopez , Subramanian Venkatachalam , Deepak Kumaar Kandasamy Karthikeyan , Sujeet Kumar
IPC分类号： H01M4/13
CPC分类号： H01M4/366 , C01D15/08 , C01G45/1257 , C01G51/50 , C01G53/50 , C01P2002/52 , C01P2004/80 , C01P2006/10 , C01P2006/40 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/056
摘要： Lithium rich and manganese rich lithium metal oxides are described that provide for excellent performance in lithium-based batteries. The specific compositions can be engineered within a specified range of compositions to provide desired performance characteristics. Selected compositions can provide high values of specific capacity with a reasonably high average voltage. Compositions of particular interest can be represented by the formula, xLi2MnO3.(1−x)LiNiu+ΔMnu−ΔCowAyO2. The compositions undergo significant first cycle irreversible changes, but the compositions cycle stably after the first cycle.
摘要翻译： 描述了富锂和富锰的锂金属氧化物，其在锂基电池中具有优异的性能。 特定组合物可以在指定范围的组合物内进行工程化以提供所需的性能特征。 所选组合物可以以相当高的平均电压提供较高的比容量值。 特别感兴趣的组合可以由下式表示：xLi2MnO3（1-x）LiNiu +＆Dgr; Mnu-＆Dgr; CowAyO2。 组合物经历显着的第一循环不可逆变化，但组合物在第一循环后稳定循环。
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4.发明申请FLUORINE DOPED LITHIUM RICH METAL OXIDE POSITIVE ELECTRODE BATTERY MATERIALS WITH HIGH SPECIFIC CAPACITY AND CORRESPONDING BATTERIES 有权氟化锂金属氧化物阳极电极电池具有高特定容量和相应电池的电池材料公开(公告)号：US20100086854A1
公开(公告)日：2010-04-08
申请号：US12569606
申请日：2009-09-29
CPC分类号： H01M4/505 , C01G53/50 , C01P2002/50 , C01P2002/72 , C01P2006/40 , H01M4/1315 , H01M4/366 , H01M4/525 , H01M10/052 , H01M10/0525 , Y02E60/122 , Y02P70/54
摘要： Lithium rich metal oxyfluorides are described with high specific capacity and, good cycling properties. The materials have particularly good high rate capabilities. The fluorine dopant can be introduced in a low temperature process to yield the materials with desirable cycling properties. In some embodiments, the positive electrode active materials have a composition represented approximately by the formula Li1+xNiαMnβCoγAδO2−zFz where: x is from about 0.02 to about 0.19, α is from about 0.1 to about 0.4, β is from about 0.35 to about 0.869, γ is from about 0.01 to about 0.2, δ is from 0.0 to about 0.1 and z is from about 0.01 to about 0.2, where A is Mg, Zn, Al, Ga, B, Zr, Ti, Ca, Ce, Y, Nb or combinations thereof.
摘要翻译： 描述富锂金属氟氧化物具有高比容量和良好的循环性能。 这些材料具有特别好的高速率能力。 可以在低温工艺中引入氟掺杂剂以产生具有期望循环特性的材料。 在一些实施方案中，正极活性物质具有大致由式Li1 + xNi1Mn＆bgr;CoγAδO2-zFz表示的组成，其中：x为约0.02至约0.19，α为约0.1至约0.4，＆bgr; 为约0.35至约0.869，γ为约0.01至约0.2，δ为0.0至约0.1，z为约0.01至约0.2，其中A为Mg，Zn，Al，Ga，B，Zr，Ti ，Ca，Ce，Y，Nb或其组合。
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5.发明申请POSITIVE ELECTRODE MATERIALS FOR LITHIUM ION BATTERIES HAVING A HIGH SPECIFIC DISCHARGE CAPACITY AND PROCESSES FOR THE SYNTHESIS OF THESE MATERIALS 有权具有高特异性放电容量的锂离子电池的正极电极材料和用于合成这些材料的方法公开(公告)号：US20100086853A1
公开(公告)日：2010-04-08
申请号：US12246814
申请日：2008-10-07
CPC分类号： H01M4/1391 , C01G45/1228 , C01G51/50 , C01G53/50 , C01P2002/52 , C01P2002/72 , C01P2004/84 , C01P2006/40 , H01M4/362 , H01M4/505 , H01M4/525 , H01M4/582 , H01M4/62 , H01M10/052 , H01M10/4235 , H01M2004/021
摘要： Positive electrode active materials are described that have a very high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula Li1+xNiαMnβCOγO2, where x ranges from about 0.05 to about 0.25, α ranges from about 0.1 to about 0.4, β ranges from about 0.4 to about 0.65, and γ ranges from about 0.05 to about 0.3. The materials can be coated with a metal fluoride to improve the performance of the materials especially upon cycling. Also, the coated materials can exhibit a very significant decrease in the irreversible capacity lose upon the first charge and discharge of the cell. Methods for producing these materials include, for example, a co-precipitation approach involving metal hydroxides and sol-gel approaches.
摘要翻译： 描述了在室温和适度的放电速率下循环时具有非常高的比放电容量的正极活性材料。 一些感兴趣的材料具有式Li1 + xNi1Mn＆bgr;COγO2，其中x为约0.05至约0.25，α为约0.1至约0.4，bgr; 范围为约0.4至约0.65，γ为约0.05至约0.3。 这些材料可以用金属氟化物涂覆，以改善材料的性能，特别是在循环时。 此外，涂覆的材料可以表现出在电池的第一次充电和放电时不可逆容量损失的非常显着的降低。 制备这些材料的方法包括例如涉及金属氢氧化物和溶胶 - 凝胶方法的共沉淀方法。
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6.发明授权Lithium ion batteries with high energy density, excellent cycling capability and low internal impedance 有权具有高能量密度，优异的循环能力和低内部阻抗的锂离子电池公开(公告)号：US09552901B2
公开(公告)日：2017-01-24
申请号：US13588783
申请日：2012-08-17
申请人： Shabab Amiruddin , Subramanian Venkatachalam , Bing Li , Charles Bowling , Yezi Bei , Deepak Kumaar Karthikeyan , Herman Lopez , Sujeet Kumar
发明人： Shabab Amiruddin , Subramanian Venkatachalam , Bing Li , Charles Bowling , Yezi Bei , Deepak Kumaar Karthikeyan , Herman Lopez , Sujeet Kumar
IPC分类号： H01M4/13 , H01M4/58 , H01M6/12 , H01M6/46 , H01M4/00 , H01B1/08 , H01M4/505 , H01M4/131 , H01M10/0525 , C01G53/00 , H01M2/02
CPC分类号： H01B1/08 , C01G53/50 , C01P2002/52 , C01P2006/40 , H01M2/021 , H01M4/131 , H01M4/505 , H01M10/0525 , Y02E60/122 , Y02T10/7011
摘要： Batteries with particularly high energy capacity and low internal impedance have been described herein. The batteries can exhibit extraordinary long cycling with acceptable low amounts of fade. Pouch batteries using high specific capacity lithium rich metal oxide as positive electrode material combined with graphitic carbon anode can reach an energy density of at least about 180 Wh/kg at a rate of C/3 from 4.35V to 2V at room temperature while having a room temperature areas specific DC resistance of no more than about 75 ohms-cm2 at 20% SOC based on a full charge to 4.35V. High specific capacity lithium rich metal oxide with specific stoichiometry ranges used in these batteries are disclosed.
摘要翻译： 这里描述了具有特别高的能量容量和低内部阻抗的电池。 电池可以显示非凡的长时间循环，可接受的低褪色量。 使用高比容量的富锂金属氧化物作为与石墨碳阳极结合的正极材料的袋电池可以在室温下从4.35V至2V的C / 3速率达到至少约180Wh / kg的能量密度，同时具有 室温区域的特定直流电阻不超过约75欧姆 - 厘米2，基于充电至4.35V的20％SOC。 公开了在这些电池中使用的具有特定化学计量范围的高比容量的富锂金属氧化物。
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7.发明申请LITHIUM ION BATTERIES WITH HIGH ENERGY DENSITY, EXCELLENT CYCLING CAPABILITY AND LOW INTERNAL IMPEDANCE 有权具有高能量密度，卓越循环能力和低内部阻抗的锂离子电池公开(公告)号：US20140050972A1
公开(公告)日：2014-02-20
申请号：US13588783
申请日：2012-08-17
申请人： Shabab Amiruddin , Subramanian Venkatachalam , Bing Li , Charles Bowling , Yezi Bei , Deepak Kumaar Karthikeyan , Herman Lopez , Sujeet Kumar
发明人： Shabab Amiruddin , Subramanian Venkatachalam , Bing Li , Charles Bowling , Yezi Bei , Deepak Kumaar Karthikeyan , Herman Lopez , Sujeet Kumar
IPC分类号： H01M4/505 , H01B1/08 , H01M4/54 , H01M4/525 , H01M10/052 , H01M10/056
CPC分类号： H01B1/08 , C01G53/50 , C01P2002/52 , C01P2006/40 , H01M2/021 , H01M4/131 , H01M4/505 , H01M10/0525 , Y02E60/122 , Y02T10/7011
摘要： Batteries with particularly high energy capacity and low internal impedance have been described herein. The batteries can exhibit extraordinary long cycling with acceptable low amounts of fade. Pouch batteries using high specific capacity lithium rich metal oxide as positive electrode material combined with graphitic carbon anode can reach an energy density of at least about 180 Wh/kg at a rate of C/3 from 4.35V to 2V at room temperature while having a room temperature areas specific DC resistance of no more than about 75 ohms-cm2 at 20% SOC based on a full charge to 4.35V. High specific capacity lithium rich metal oxide with specific stoichiometry ranges used in these batteries are disclosed.
摘要翻译： 这里描述了具有特别高的能量容量和低内部阻抗的电池。 电池可以显示非凡的长时间循环，可接受的低褪色量。 使用高比容量的富锂金属氧化物作为与石墨碳阳极结合的正极材料的袋电池可以在室温下从4.35V至2V的C / 3速率达到至少约180Wh / kg的能量密度，同时具有 室温区域的特定直流电阻不超过约75欧姆 - 厘米2，基于充电至4.35V的20％SOC。 公开了在这些电池中使用的具有特定化学计量范围的高比容量的富锂金属氧化物。
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公开(公告)号：US20130295439A1
公开(公告)日：2013-11-07
申请号：US13464034
申请日：2012-05-04
申请人： Charan Masarapu , Haixia Deng , Yongbong Han , Yogesh Kumar Anguchamy , Subramanian Venkatachalam , Sujeet Kumar , Herman A. Lopez
发明人： Charan Masarapu , Haixia Deng , Yongbong Han , Yogesh Kumar Anguchamy , Subramanian Venkatachalam , Sujeet Kumar , Herman A. Lopez
CPC分类号： H01M4/582 , B82Y30/00 , H01B1/24 , H01M2/024 , H01M2/1646 , H01M4/131 , H01M4/134 , H01M4/38 , H01M4/386 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/622 , H01M4/625 , H01M10/0525 , H01M10/446 , H01M2220/20
摘要： Improved high energy capacity designs for lithium ion batteries are described that take advantage of the properties of high specific capacity anode active compositions and high specific capacity cathode active compositions. In particular, specific electrode designs provide for achieving very high energy densities. Furthermore, the complex behavior of the active materials is used advantageously in a radical electrode balancing design that significantly reduced wasted electrode capacity in either electrode when cycling under realistic conditions of moderate to high discharge rates and/or over a reduced depth of discharge.
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公开(公告)号：US20120105007A1
公开(公告)日：2012-05-03
申请号：US13305981
申请日：2011-11-29
CPC分类号： H01M4/1393 , C01G45/1228 , C01G45/1257 , C01G51/50 , C01G53/50 , C01P2004/82 , H01M4/0447 , H01M4/1395 , H01M4/386 , H01M4/505 , H01M4/587 , H01M6/5005 , H01M10/052 , H01M10/058 , H01M10/446 , Y02E60/122 , Y02T10/7011 , Y10T29/49108 , Y10T29/49115
摘要： Supplemental lithium can be used to stabilize lithium ion batteries with lithium rich metal oxides as the positive electrode active material. Dramatic improvements in the specific capacity at long cycling have been obtained. The supplemental lithium can be provided with the negative electrode, or alternatively as a sacrificial material that is subsequently driven into the negative electrode active material. The supplemental lithium can be provided to the negative electrode active material prior to assembly of the battery using electrochemical deposition. The positive electrode active materials can comprise a layered-layered structure comprising manganese as well as nickel and/or cobalt.
摘要翻译： 补充锂可用于稳定锂离子电池与富锂金属氧化物作为正极活性物质。 已经获得了长时间骑行的具体能力的显着改善。 补充的锂可以设置有负极，或者替代地作为随后被驱动到负极活性材料中的牺牲材料。 在使用电化学沉积的电池组装之前，可以将补充的锂提供给负极活性材料。 正极活性物质可以包括包含锰以及镍和/或钴的层状结构的结构。
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公开(公告)号：US20110111298A1
公开(公告)日：2011-05-12
申请号：US12616226
申请日：2009-11-11
申请人： Herman A. Lopez , Subramanian Venkatachalam , Deepak Kumaar Kandasamy Karthikeyan , Shabab Amiruddin , Sujeet Kumar
发明人： Herman A. Lopez , Subramanian Venkatachalam , Deepak Kumaar Kandasamy Karthikeyan , Shabab Amiruddin , Sujeet Kumar
CPC分类号： H01M4/485 , C01G53/50 , C01P2002/50 , C01P2002/72 , C01P2002/88 , C01P2004/03 , C01P2004/04 , C01P2004/84 , C01P2006/11 , C01P2006/40 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , Y02T10/7011
摘要： High specific capacity lithium rich lithium metal oxide materials are coated with inorganic compositions, such as metal fluorides, to improve the performance of the materials as a positive electrode active material. The resulting coated material can exhibit an increased specific capacity, and the material can also exhibit improved cycling. The materials can be formed while maintaining a desired relatively high average voltage such that the materials are suitable for the formation of commercial batteries. Suitable processes are described for the synthesis of the desired coated compositions that can be adapted for commercial production.
摘要翻译： 高比容量的锂离子锂金属氧化物材料用无机组合物如金属氟化物涂覆，以提高作为正极活性材料的材料的性能。 所得到的涂覆材料可以表现出增加的比容量，并且该材料还可以表现出改善的循环。 可以在保持所需的相对高的平均电压的同时形成材料，使得材料适于形成商业电池。 描述合适的方法用于合成可适用于商业生产的所需涂层组合物。
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