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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：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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公开(公告)号：US09190694B2
公开(公告)日：2015-11-17
申请号：US12938951
申请日：2010-11-03
申请人： Herman A. Lopez , Yogesh Kumar Anguchamy , Haixia Deng , Yongbong Han , Charan Masarapu , Subramanian Venkatachalam , Sujeet Kumar
发明人： Herman A. Lopez , Yogesh Kumar Anguchamy , Haixia Deng , Yongbong Han , Charan Masarapu , Subramanian Venkatachalam , Sujeet Kumar
CPC分类号： H01M4/134 , C25F3/12 , H01M4/131 , H01M4/133 , H01M4/364 , H01M4/38 , H01M4/386 , H01M4/505 , H01M4/525 , H01M4/587 , H01M4/621 , H01M4/622 , H01M10/0525 , H01M2004/027 , H01M2004/028 , H01M2220/30 , Y02E60/122
摘要： High capacity silicon based anode active materials are described for lithium ion batteries. These materials are shown to be effective in combination with high capacity lithium rich cathode active materials. Supplemental lithium is shown to improve the cycling performance and reduce irreversible capacity loss for at least certain silicon based active materials. In particular silicon based active materials can be formed in composites with electrically conductive coatings, such as pyrolytic carbon coatings or metal coatings, and composites can also be formed with other electrically conductive carbon components, such as carbon nanofibers and carbon nanoparticles. Additional alloys with silicon are explored.
摘要翻译： 锂离子电池描述了大容量硅基阳极活性材料。 这些材料显示与高容量富锂正极活性材料组合有效。 补充锂显示出改善循环性能并减少至少某些基于硅的活性材料的不可逆容量损失。 特别地，硅基活性材料可以与导电涂层（例如热解碳涂层或金属涂层）的复合材料形成，并且复合材料也可以与其它导电碳组分如碳纳米纤维和碳纳米颗粒一起形成。 探索了具有硅的附加合金。
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公开(公告)号：US20130189575A1
公开(公告)日：2013-07-25
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 , H01M2/14 , H01M4/134 , H01M4/38 , H01M4/60 , H01M4/64 , C01B33/023 , B44C1/22 , H01M4/62 , H01M4/485 , B82Y30/00
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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公开(公告)号：US10553871B2
公开(公告)日：2020-02-04
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
IPC分类号： H01M4/485 , H01M4/58 , H01B1/24 , H01M4/505 , H01M2/16 , H01M4/131 , H01M4/134 , H01M4/38 , H01M4/525 , H01M4/62 , H01M10/0525 , H01M10/44 , B82Y30/00 , H01M2/02
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：US09601228B2
公开(公告)日：2017-03-21
申请号：US13108708
申请日：2011-05-16
申请人： Haixia Deng , Yongbong Han , Charan Masarapu , Yogesh Kumar Anguchamy , Herman A. Lopez , Sujeet Kumar
发明人： Haixia Deng , Yongbong Han , Charan Masarapu , Yogesh Kumar Anguchamy , Herman A. Lopez , Sujeet Kumar
IPC分类号： H01M4/36 , H01B1/18 , H01M10/056 , H01M4/48 , H01M4/485 , H01M4/583 , H01M4/62 , B82Y30/00 , H01B1/12 , H01M4/131 , H01M4/134 , H01M10/052 , H01M4/38 , H01M4/02
CPC分类号： H01M4/131 , H01B1/122 , H01M4/134 , H01M4/136 , H01M4/386 , H01M4/483 , H01M4/505 , H01M4/525 , H01M4/583 , H01M4/622 , H01M4/624 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M10/0569 , H01M2004/027
摘要： Silicon oxide based materials, including composites with various electrical conductive compositions, are formulated into desirable anodes. The anodes can be effectively combined into lithium ion batteries with high capacity cathode materials. In some formulations, supplemental lithium can be used to stabilize cycling as well as to reduce effects of first cycle irreversible capacity loss. Batteries are described with surprisingly good cycling properties with good specific capacities with respect to both cathode active weights and anode active weights.
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7.发明申请SILICON OXIDE BASED HIGH CAPACITY ANODE MATERIALS FOR LITHIUM ION BATTERIES 有权用于锂离子电池的基于氧化硅的高容量阳极材料公开(公告)号：US20120295155A1
公开(公告)日：2012-11-22
申请号：US13108708
申请日：2011-05-16
申请人： Haixia Deng , Yongbong Han , Charan Masarapu , Yogesh Kumar Anguchamy , Herman A. Lopez , Sujeet Kumar
发明人： Haixia Deng , Yongbong Han , Charan Masarapu , Yogesh Kumar Anguchamy , Herman A. Lopez , Sujeet Kumar
IPC分类号： H01M4/36 , H01M4/525 , H01M10/056 , H01M4/583 , H01M4/48 , H01B1/18 , H01M4/485 , H01M4/62 , B82Y30/00
CPC分类号： H01M4/131 , H01B1/122 , H01M4/134 , H01M4/136 , H01M4/386 , H01M4/483 , H01M4/505 , H01M4/525 , H01M4/583 , H01M4/622 , H01M4/624 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M10/0569 , H01M2004/027
摘要： Silicon oxide based materials, including composites with various electrical conductive compositions, are formulated into desirable anodes. The anodes can be effectively combined into lithium ion batteries with high capacity cathode materials. In some formulations, supplemental lithium can be used to stabilize cycling as well as to reduce effects of first cycle irreversible capacity loss. Batteries are described with surprisingly good cycling properties with good specific capacities with respect to both cathode active weights and anode active weights.
摘要翻译： 包括具有各种导电组合物的复合材料的氧化硅基材料被配制成所需的阳极。 阳极可以有效地组合到具有高容量阴极材料的锂离子电池中。 在一些制剂中，补充锂可用于稳定循环以及减少第一循环不可逆容量损失的影响。 描述了具有令人惊奇的良好循环性能的电池，具有相对于阴极活性重量和阳极活性重量的良好的比容量。
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8.发明授权High voltage battery formation protocols and control of charging and discharging for desirable long term cycling performance 有权高电压电池形成方案和充放电控制，达到理想的长期循环性能公开(公告)号：US08765306B2
公开(公告)日：2014-07-01
申请号：US12732520
申请日：2010-03-26
IPC分类号： H01M10/0525 , H01M4/525 , H01M4/583 , H01M10/44 , H02J7/00 , H01M4/505 , H01M4/587 , H01M4/04 , H01M4/131 , H01M10/058 , H01M10/0585
CPC分类号： H02J7/0075 , H01M4/0447 , H01M4/505 , H01M4/587 , H01M10/0525 , H01M10/44 , H01M10/446 , Y02E60/122
摘要： Improved cycling of high voltage lithium ion batteries is accomplished through the use of a formation step that seems to form a more stable structure for subsequent cycling and through the improved management of the charge-discharge cycling. In particular, the formation charge for the battery can be performed at a lower voltage prior to full activation of the battery through a charge to the specified operational voltage of the battery. With respect to management of the charging and discharging of the battery, it has been discovered that for the lithium rich high voltage compositions of interest that a deeper discharge can preserve the cycling capacity at a greater number of cycles. Battery management can be designed to exploit the improved cycling capacity obtained with deeper discharges of the battery.
摘要翻译： 高压锂离子电池的改进循环是通过使用似乎形成用于随后循环的更稳定结构并通过改进的充放电循环管理的形成步骤来实现的。 特别地，电池的形成电荷可以在电池完全激活之前以较低的电压进行，通过电荷到电池的指定工作电压。 关于电池的充电和放电的管理，已经发现，对于感兴趣的富锂高压组合物，更深的放电可以在更多的循环数量下保持循环容量。 电池管理可以设计成利用电池更深的放电获得的改进的循环容量。
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公开(公告)号：US20120107680A1
公开(公告)日：2012-05-03
申请号：US12938073
申请日：2010-11-02
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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10.发明申请DOPED POSITIVE ELECTRODE ACTIVE MATERIALS AND LITHIUM ION SECONDARY BATTERY CONSTRUCTED THEREFROM 有权DOPED正极电极活性材料和锂离子二次电池公开(公告)号：US20110244331A1
公开(公告)日：2011-10-06
申请号：US12753312
申请日：2010-04-02
申请人： Deepak Kumaar Kandasamy Karthikeyan , Subramanian Venkatachalam , Shabab Amiruddin , Herman A. Lopez , Sujeet Kumar
发明人： Deepak Kumaar Kandasamy Karthikeyan , Subramanian Venkatachalam , Shabab Amiruddin , Herman A. Lopez , Sujeet Kumar
IPC分类号： H01M4/525
CPC分类号： H01M4/62 , C01G51/50 , C01G53/50 , C01P2002/52 , C01P2002/72 , C01P2006/40 , C01P2006/80 , H01M4/1315 , H01M4/366 , H01M4/505 , H01M4/525 , H01M10/052 , H01M2004/028
摘要： Positive electrode active materials comprising a dopant in an amount of 0.1 to 10 mole percent of Mg, Ca, Sr, Ba, Zn, Cd or a combination thereof are described that have high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula Li1+xNiαMnβ-δCoγAδXμO2−zFz, where x ranges from about 0.01 to about 0.3, δ ranges from about 0.001 to about 0.15, and the sum x+α+β+γ+δ+μ can approximately equal 1.0. The materials can be coated with a metal fluoride to improve the performance of the materials especially upon cycling. The materials generally can have a tap density of at least 1.8 g/mL. Also, the materials can have an average discharge voltage of around 3.6 V.
摘要翻译： 描述了包含0.1至10摩尔％的Mg，Ca，Sr，Ba，Zn，Cd或其组合的掺杂剂的正极活性材料，其在室温和适度放电下循环时具有高的比放电容量 率。 一些感兴趣的材料具有式Li1 +xNiαMn＆bgr;-δCoγAδXμO2-zFz，其中x为约0.01至约0.3，δ为约0.001至约0.15，且和x +α+＆bgr + +γ+δ+μ 大约可以等于1.0。 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。 材料通常可具有至少1.8g / mL的振实密度。 此外，材料的平均放电电压可以达到3.6V左右。
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