公开(公告)号：EP1129035A1

公开(公告)日：2001-09-05

申请号：EP99942084.7

申请日：1999-08-11

Applicant: Nanogram Corporation

Inventor： KUMAR, Sujeet ,  REITZ, Hariklia, Dris ,  BI, Xiangxin ,  KAMBE, Nobuyuki

IPC: C01G1/02 ,  B24D3/00 ,  C01B13/00 ,  C01F7/02

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 having a very narrow distribution of particle diameters are produced by laser pyrolysis. The distribution of particle diameters effectively does not have a tail and almost no particles have a diameter greater than about 4 times the average diameter. The pyrolysis is performed by pyrolyzing a molecular stream containing an aluminum precursor, an oxidizing agent and an infrared absorber.

公开(公告)号：EP1016149A1

公开(公告)日：2000-07-05

申请号：EP98935816.3

申请日：1998-07-20

Applicant: Nanogram Corporation

Inventor： BI, Xiangxin ,  KUMAR, Sujeet ,  GARDNER, James, T. ,  KAMBE, Nobuyuki

IPC: H01M4/48

CPC classification number: C01G31/02 ,  B82Y30/00 ,  C01P2002/02 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/64 ,  C01P2006/40 ,  H01M4/02 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/622 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/021

Abstract: Vanadium oxide nanoparticles with different vanadium oxidation states and different crystal structures. The particles have a narrow distribution of particle diameters and unique properties that result from their small size and correspondingly large surface area. The particles are produced by laser pyrolysis, and can be further treated to change their properties, without destroying their nanoscale size. The stoichiometry and crystal structure can be varied by initial heating under mild conditions. The materials may be used as cathode active materials in high energy density batteries.

公开(公告)号：EP1425162A2

公开(公告)日：2004-06-09

申请号：EP02757107.4

申请日：2002-08-15

Applicant: NanoGram Corporation

Inventor： HORNE, Craig, R. ,  DEMASCAREL, Pierre, J. ,  HONEKER, Christian, C. ,  CHALONER-GILL, Benjamin ,  LOPEZ, Herman, A. ,  BI, Xiangxin ,  MOSSO, Ronald, J. ,  MCGOVERN, William, E. ,  GARDNER, James, T. ,  KUMAR, Sujeet ,  GILLIAM, James, A. ,  PHAM, Vince ,  EUVRARD, Eric ,  CHIRUVOLU, Shivkumar ,  JUR, Jesse

IPC: B32B5/16

CPC classification number: B82Y30/00 ,  C01B13/20 ,  C01B19/004 ,  C01F17/0043 ,  C01G1/00 ,  C01G17/00 ,  C01G23/00 ,  C01P2002/02 ,  C01P2002/50 ,  C01P2004/50 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/84 ,  C01P2006/60 ,  C01P2006/80 ,  C03B19/106 ,  C03B19/1415 ,  C03B2207/34 ,  C03C3/062 ,  C03C3/078 ,  C03C3/095 ,  C03C3/097 ,  C03C3/122 ,  C03C3/17 ,  C03C3/253 ,  C03C12/00 ,  C09K11/7706 ,  Y02P40/57 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/2949 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/31609

Abstract: Nanoscale particles, particle coatings/particle arrays and corresponding consolidated material are described based on an ability to vary the composition involving a wide range of metal and/or metalloid elements and corresponding compositions. In particular, metalloid oxides and metal-metalloid compositions are described in the form of improved nanoscale particles and coatings formed from the nanoscale particles. Compositions comprising rare earth metals and dopants/additives with rare earth metals are described. Complex compositions with a range of host compositions and dopants/additives can be formed using the approaches described herein. The particle coating can take the form of particle arrays that range from collections of disbursable primary particles to fused networks of primary particles forming channels that reflect the nanoscale of the primary particles. Suitable materials for optical applications are described along with some optical devices of interest.

公开(公告)号：EP1230016A1

公开(公告)日：2002-08-14

申请号：EP00947495.8

申请日：2000-07-18

Applicant: Nanogram Corporation

Inventor： MOSSO, Ronald, J. ,  BI, Xiangxin ,  GARDNER, James, T. ,  KUMAR, Sujeet ,  PHILLIPS, Samuel, R.

IPC: B01J19/08

CPC classification number: B01J6/008 ,  B01J19/121 ,  B01J2219/0879

Abstract: Improvements to chemical reaction systems (100) provide for the production of commercial quantities of chemical products, such as chemical powders. The improved chemical reaction systems (100) can accomodate a large reactant flux for the production of significant amounts of product. Preferred reaction systems (100) are based on laser pyrolysis. Features of the system (100) provide for the production of highly uniform product particles.

公开(公告)号：EP1165442A1

公开(公告)日：2002-01-02

申请号：EP99957527.7

申请日：1999-11-08

Applicant: Nanogram Corporation

Inventor： KUMAR, Sujeet ,  BI, Xiangxin ,  HORNE, Craig, R. ,  HARIKLIA, Dris, Reitz ,  GARDNER, James, T. ,  MOSSO, Ronald, J. ,  KAMBE, Nobuyuki

IPC: C01G45/12 ,  C01G45/02 ,  H01M4/50 ,  B01J23/32 ,  A45D20/40 ,  A21B2/00 ,  H05B3/10

CPC classification number: H01M4/505 ,  B82Y30/00 ,  C01G31/00 ,  C01G45/02 ,  C01G45/1221 ,  C01G45/1242 ,  C01P2002/02 ,  C01P2002/32 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/02 ,  H01M10/052 ,  H01M2004/021

Abstract: Manganese oxide particles and lithium manganese oxide particles have been produced with an average diameter less than about 500 nm. The particles have a high degree of uniformity including a very narrow distribution of particles sizes. Methods are described for producing metal oxides by performing a reaction with an aerosol including a metal precursor. In particular, the particles can be formed by laser pyrolysis. The lithium manganese oxide particles can be formed by the heat treatment of nanoparticles of manganese oxide. Alternatively, lithium manganese oxide particles can be formed directly by laser pyrolysis. The lithium manganese oxide particles are useful as active materials in the positive electrodes of lithium based batteries. Improved batteries result from the use of the uniform nanoscale lithium manganese oxide particles.

Abstract translation: 已经生产平均直径小于约500nm的氧化锰颗粒和氧化锰氧化物颗粒。 颗粒具有高度的均匀性，包括非常窄的颗粒尺寸分布。 描述了通过与包括金属前体的气溶胶进行反应来制备金属氧化物的方法。 特别地，可以通过激光热解形成颗粒。 锂锰氧化物颗粒可以通过氧化锰纳米颗粒的热处理形成。 或者，可以通过激光热解直接形成锂锰氧化物颗粒。 锂锰氧化物颗粒可用作锂基电池正极中的活性材料。 使用均匀的纳米级锂锰氧化物颗粒导致改善的电池。

公开(公告)号：EP1163703A1

公开(公告)日：2001-12-19

申请号：EP00905921.3

申请日：2000-02-02

Applicant: Nanogram Corporation

Inventor： HORNE, Craig, R. ,  REITZ, Hariklia, Dris ,  BUCKLEY, James, P. ,  KUMAR, Sujeet ,  FORTUNAK, Yu, K. ,  BI, Xiangxin

IPC: H01M4/58 ,  H01M4/34 ,  C01F1/00 ,  H01B1/02

CPC classification number: H01M4/131 ,  B82Y30/00 ,  C01G31/00 ,  C01G31/02 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/54 ,  H01M4/5825 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028

Abstract: Metal vanadium oxide particles have been produced with an average diameter less than about 500 nm. The metal vanadium oxide particles have very uniform properties. In some embodiments, silver vanadium oxide particles are formed by the heat treatment of a mixture of nanoscale vanadium oxide and a silver compound. Other metal vanadium oxide particles can be produced by similar processes. In other embodiments, laser pyrolysis is used to produce directly metal vanadium oxide composite nanoparticles. To perform the pyrolysis a reactant stream is formed including a vanadium precursor and a second metal precursor. The pyrolysis is driven by energy absorbed from a light beam. Metal vanadium oxide nanoparticles can be incorporated into a cathode of a lithium based battery to obtain increased energy densities. Implantable defibrillators can be constructed with lithium based batteries having increased energy densities.

Abstract translation: 已经生产了平均直径小于约500nm的金属氧化钒颗粒。 金属氧化钒颗粒具有非常均匀的性质。 在一些实施方案中，通过热处理纳米级钒氧化物和银化合物的混合物形成银钒氧化物颗粒。 其他金属氧化钒颗粒可以通过类似的方法生产。 在其它实施例中，激光热解用于直接生产金属氧化钒复合纳米粒子。 为了进行热解，形成包含钒前体和第二金属前体的反应物流。 热解是由光束吸收的能量驱动的。 可以将金属氧化钒纳米颗粒掺入锂基电池的阴极中以获得增加的能量密度。 可植入的除颤器可以用具有增加的能量密度的锂基电池构成。