公开(公告)号：US08389160B2

公开(公告)日：2013-03-05

申请号：US12246814

申请日：2008-10-07

Applicant: Subramanian Venkatachalam ,  Herman Lopez ,  Sujeet Kumar

Inventor： Subramanian Venkatachalam ,  Herman Lopez ,  Sujeet Kumar

IPC: H01M4/131 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/13915 ,  H01M4/48 ,  H01M4/505 ,  H01M4/525

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120244060A9

公开(公告)日：2012-09-27

申请号：US12686803

申请日：2010-01-13

Applicant: Xiangxin Bi ,  Nobuyuki Kambe ,  Craig R. Horne ,  James T. Gardner ,  Ronald J. Mosso ,  Shivkumar Chiruvolu ,  Sujeet Kumar ,  William E. McGovern ,  Pierre J. DeMascarel ,  Robert B. Lynch

Inventor： Xiangxin Bi ,  Nobuyuki Kambe ,  Craig R. Horne ,  James T. Gardner ,  Ronald J. Mosso ,  Shivkumar Chiruvolu ,  Sujeet Kumar ,  William E. McGovern ,  Pierre J. DeMascarel ,  Robert B. Lynch

IPC: C01B33/06 ,  B01J19/12

CPC classification number: C09D5/031 ,  B22F1/0018 ,  B22F9/24 ,  B82Y30/00 ,  C01B21/068 ,  C01B25/45 ,  C01B32/956 ,  C01B33/182 ,  C01F7/302 ,  C01F7/308 ,  C01F7/44 ,  C01F17/0043 ,  C01G9/02 ,  C01G19/02 ,  C01G23/005 ,  C01G31/00 ,  C01G31/02 ,  C01G45/02 ,  C01G45/1242 ,  C01G51/42 ,  C01G53/42 ,  C01P2002/02 ,  C01P2002/32 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2006/12 ,  C04B35/44 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3262 ,  C04B2235/5454 ,  Y10T428/2982

Abstract: Methods are described that have the capability of producing submicron/nanoscale particles, in some embodiments dispersible, at high production rates. In some embodiments, the methods result in the production of particles with an average diameter less than about 75 nanometers that are produced at a rate of at least about 35 grams per hour. In other embodiments, the particles are highly uniform. These methods can be used to form particle collections and/or powder coatings. Powder coatings and corresponding methods are described based on the deposition of highly uniform submicron/nanoscale particles.

Abstract translation: 描述了在高生产率下具有产生亚微米/纳米级颗粒的能力的方法，在一些实施方案中可分散。 在一些实施方案中，该方法导致以至少约35克/小时的速率生产平均直径小于约75纳米的颗粒。 在其它实施方案中，颗粒是高度均匀的。 这些方法可用于形成颗粒收集和/或粉末涂料。 基于高度均匀的亚微米/纳米级颗粒的沉积来描述粉末涂料和相应的方法。

公开(公告)号：US20110052981A1

公开(公告)日：2011-03-03

申请号：US12869976

申请日：2010-08-27

Applicant: Herman A. Lopez ,  Subramanian Venkatachalam ,  Deepak Kumaar Kandasamy Karthikeyan ,  Sujeet Kumar

Inventor： Herman A. Lopez ,  Subramanian Venkatachalam ,  Deepak Kumaar Kandasamy Karthikeyan ,  Sujeet Kumar

IPC: H01M4/50 ,  H01M10/052

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110017528A1

公开(公告)日：2011-01-27

申请号：US12509131

申请日：2009-07-24

Applicant: Sujeet Kumar ,  James P. Buckley ,  Hang Shi

Inventor： Sujeet Kumar ,  James P. Buckley ,  Hang Shi

IPC: B60K1/04 ,  H01M4/58 ,  H01M2/02

CPC classification number: H01M10/0525 ,  C01G53/50 ,  C01P2002/50 ,  C01P2002/72 ,  C01P2006/40 ,  H01M2/0217 ,  H01M2/022 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/582 ,  H01M4/587 ,  Y02E60/122 ,  Y02T10/7011

Abstract: Batteries with high energy and high capacity are described that have a long cycle life upon cycling at a moderate discharge rate. Specifically, the batteries may have a room temperature fifth cycle discharge specific energy of at least about 175 Wh/kg discharged at a C/3 discharge rate from 4.2V to 2.5V. Additionally, the batteries can maintain at least about 70% discharge capacity at 1000 cycles relative to the fifth cycle, with the battery being discharged from 4.2V to 2.5V at a C/2 rate from the fifth cycle through the 1000th cycle. In some embodiment, the positive electrode of the battery comprises a lithium intercalation composition with optional metal fluoride coating. Stabilizing additive maybe added to the electrolyte of the battery to further improve the battery performance. The batteries are particularly suitable for use in electric vehicles.

Abstract translation: 描述了具有高能量和高容量的电池，其以适度的放电速率循环时具有长的循环寿命。 具体地说，电池可以具有至少约175Wh / kg的室温第五循环放电比能量，以4.2V至2.5V的C / 3放电率放电。 此外，相对于第五周期，电池可以在1000个周期内保持至少约70％的放电容量，其中电池以从第五周期到第1000周期的C / 2速率从4.2V放电至2.5V。 在一些实施方案中，电池的正极包括具有任选的金属氟化物涂层的锂嵌入组合物。 稳定添加剂可以添加到电池的电解质中，以进一步提高电池性能。 电池特别适用于电动车辆。

公开(公告)号：US07792406B2

公开(公告)日：2010-09-07

申请号：US11098306

申请日：2005-04-04

Applicant: Nobuyuki Kambe ,  Yigal Dov Blum ,  Benjamin Chaloner-Gill ,  Shivkumar Chiruvolua ,  Sujeet Kumar ,  David Brent MacQueen

Inventor： Nobuyuki Kambe ,  Yigal Dov Blum ,  Benjamin Chaloner-Gill ,  Shivkumar Chiruvolua ,  Sujeet Kumar ,  David Brent MacQueen

IPC: G02B6/10

CPC classification number: G02B1/005 ,  B32B27/08 ,  C08G18/3897 ,  C08G83/001 ,  C08K9/08 ,  G02B6/10 ,  H01L35/24 ,  Y10T428/16 ,  Y10T428/25 ,  Y10T428/2913 ,  Y10T428/2962 ,  Y10T428/2991 ,  Y10T428/31663 ,  Y10T428/31678 ,  Y10T428/31681 ,  Y10T428/31692 ,  Y10T428/31931

Abstract: Inorganic particle/polymer composites are described that involve chemical bonding between the elements of the composite. In some embodiments, the composite composition includes a polymer having side groups chemically bonded to inorganic particles. Furthermore, the composite composition can include chemically bonded inorganic particles and ordered copolymers. Various electrical optical and electro-optical devices can be formed from the composites.

Abstract translation: 描述了涉及复合材料元素之间的化学键合的无机颗粒/聚合物复合材料。 在一些实施方案中，复合组合物包括具有化学键合到无机颗粒的侧基的聚合物。 此外，复合组合物可以包括化学键合的无机颗粒和有序共聚物。 可以从复合材料形成各种电光学和电光器件。

公开(公告)号：US20100151332A1

公开(公告)日：2010-06-17

申请号：US12332735

申请日：2008-12-11

Applicant: Herman Lopez ,  Subramanian Venkatachalam ,  Sujeet Kumar ,  Deepak Kumaar Karthikeyan

Inventor： Herman Lopez ,  Subramanian Venkatachalam ,  Sujeet Kumar ,  Deepak Kumaar Karthikeyan

IPC: H01M4/58 ,  H01M4/86

CPC classification number: H01M4/525 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/136 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/13915 ,  H01M4/36 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M10/0525 ,  Y02T10/7011

Abstract: Positive electrode active materials are described that have a high tap density and 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 battery.

Abstract translation: 描述了在室温和适度的放电速率下循环时具有高振实密度和高比放电容量的正极活性材料。 一些感兴趣的材料具有式Li1 +xNiαMn＆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，涂覆的材料可以显示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。

公开(公告)号：US20090255189A1

公开(公告)日：2009-10-15

申请号：US09136483

申请日：1998-08-19

Applicant: Sujeet Kumar ,  Hariklia Reitz ,  Xiangxin Bi ,  Nobuyuki Kambe

Inventor： Sujeet Kumar ,  Hariklia Reitz ,  Xiangxin Bi ,  Nobuyuki Kambe

IPC: C09G1/02

CPC classification number: C01F7/02 ,  B82Y30/00 ,  C01F7/30 ,  C01F7/306 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/52 ,  C01P2004/62 ,  C01P2004/64 ,  C09G1/02

Abstract: A collection of nanoparticles of aluminum oxide have been produced by laser pyrolysis have a very narrow distribution of particle diameters. Preferably, the distribution of particle diameters effectively does not have a tail such that almost no particles have a diameter greater than about 4 times the average diameter. The pyrolysis preferably is performed by generating a molecular stream containing an aluminum precursor, an oxidizing agent and an infrared absorber. The pyrolysis can be performed with an infrared laser such as a CO2 laser.

Abstract translation: 已经通过激光热解产生氧化铝纳米颗粒的集合具有非常窄的粒径分布。 优选地，粒径的分布有效地不具有尾部，使得几乎没有颗粒的直径大于平均直径的大约4倍。 热分解优选通过产生含有铝前体，氧化剂和红外吸收剂的分子流来进行。 热解可以用诸如CO 2激光的红外激光进行。

公开(公告)号：US07384680B2

公开(公告)日：2008-06-10

申请号：US10195851

申请日：2002-07-15

Applicant: Xiangxin Bi ,  Nobuyuki Kambe ,  Craig R. Horne ,  James T. Gardner ,  Ronald J. Mosso ,  Shivkumar Chiruvolu ,  Sujeet Kumar ,  William E. McGovern ,  Pierre J. DeMascarel ,  Robert B. Lynch

Inventor： Xiangxin Bi ,  Nobuyuki Kambe ,  Craig R. Horne ,  James T. Gardner ,  Ronald J. Mosso ,  Shivkumar Chiruvolu ,  Sujeet Kumar ,  William E. McGovern ,  Pierre J. DeMascarel ,  Robert B. Lynch

IPC: B32B5/16

CPC classification number: B22F9/30 ,  B01J2/006 ,  B22F1/0014 ,  B22F1/0018 ,  B22F1/0022 ,  B22F9/16 ,  B22F2998/00 ,  B22F2999/00 ,  B82Y30/00 ,  C23C4/123 ,  C23C24/04 ,  C23C24/10 ,  Y10T428/24372 ,  Y10T428/24413 ,  Y10T428/24421 ,  Y10T428/24479 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/259 ,  Y10T428/2982 ,  B22F2202/11

Abstract: Methods are described that have the capability of producing submicron/nanoscale particles, in some embodiments dispersible, at high production rates. In some embodiments, the methods result in the production of particles with an average diameter less than about 75 nanometers that are produced at a rate of at least about 35 grams per hour. In other embodiments, the particles are highly uniform. These methods can be used to form particle collections and/or powder coatings. Powder coatings and corresponding methods are described based on the deposition of highly uniform submicron/nanoscale particles.

Abstract translation: 描述了在高生产率下具有产生亚微米/纳米级颗粒的能力的方法，在一些实施方案中可分散。 在一些实施方案中，该方法导致以至少约35克/小时的速率生产平均直径小于约75纳米的颗粒。 在其它实施方案中，颗粒是高度均匀的。 这些方法可用于形成颗粒收集和/或粉末涂料。 基于高度均匀的亚微米/纳米级颗粒的沉积来描述粉末涂料和相应的方法。

公开(公告)号：US20080131357A1

公开(公告)日：2008-06-05

申请号：US12009184

申请日：2008-01-16

Applicant: Sujeet Kumar ,  Hariklia Dris Reitz ,  Craig R. Home ,  James T. Gardner ,  Ronald J. Mosso ,  Xiangxin Bi

Inventor： Sujeet Kumar ,  Hariklia Dris Reitz ,  Craig R. Home ,  James T. Gardner ,  Ronald J. Mosso ,  Xiangxin Bi

IPC: C01G45/02 ,  C01G31/02 ,  C01B13/00

CPC classification number: H01M4/505 ,  B82Y30/00 ,  C01G31/00 ,  C01G45/02 ,  C01G45/1221 ,  C01G45/1228 ,  C01G45/1235 ,  C01G45/1242 ,  C01G45/1257 ,  C01G45/1292 ,  C01P2002/02 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/50 ,  H01M10/052 ,  H01M10/0525

Abstract: Collections of particles comprising multiple a metal oxide can be formed with average particle sizes less than about 500 nm. In some embodiments, the particle collections have particle size distributions such that at least about 95 percent of the particles have a diameter greater than about 40 percent of the average diameter and less than about 160 percent of the average diameter. Also, in further embodiments, the particle collections have particle size distribution such that effectively no particles have a diameter greater than about four times the average diameter of the collection of particles.

Abstract translation: 可以形成具有小于约500nm的平均粒度的包含多个金属氧化物的颗粒的集合。 在一些实施方案中，颗粒收集物具有粒度分布，使得至少约95％的颗粒具有大于平均直径的约40％且小于平均直径的约160％的直径。 此外，在另外的实施方案中，颗粒收集物具有粒度分布，使得没有颗粒的直径大于颗粒收集物的平均直径的大约四倍。

公开(公告)号：US07323158B2

公开(公告)日：2008-01-29

申请号：US10655322

申请日：2003-09-04

Applicant: Sujeet Kumar ,  Hariklia Dris Reitz ,  Craig R. Horne ,  James T. Gardner ,  Ronald J. Mosso ,  Xiangxin Bi

Inventor： Sujeet Kumar ,  Hariklia Dris Reitz ,  Craig R. Horne ,  James T. Gardner ,  Ronald J. Mosso ,  Xiangxin Bi

IPC: C01B13/00 ,  C01G33/00 ,  C01G45/12 ,  C01D1/02 ,  B01J23/00

CPC classification number: H01M4/505 ,  B82Y30/00 ,  C01G31/00 ,  C01G45/02 ,  C01G45/1221 ,  C01G45/1228 ,  C01G45/1235 ,  C01G45/1242 ,  C01G45/1257 ,  C01G45/1292 ,  C01P2002/02 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/50 ,  H01M10/052 ,  H01M10/0525

Abstract: Collections of particles comprising multiple a metal oxide can be formed with average particle sizes less than about 500 nm. In some embodiments, the particle collections have particle size distributions such that at least about 95 percent of the particles have a diameter greater than about 40 percent of the average diameter and less than about 160 percent of the average diameter. Also, in further embodiments, the particle collections have particle size distribution such that effectively no particles have a diameter greater than about four times the average diameter of the collection of particles.