利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

40 条记录 (耗时 0.037 秒)

    Method for producing lithium vanadium polyanion powders for batteries
    1.
    发明申请
    Method for producing lithium vanadium polyanion powders for batteries 审中-公开
    电池用锂钒聚阴离子粉末的制造方法

    公开(公告)号：US20080305256A1

    公开(公告)日：2008-12-11

    申请号：US12024038

    申请日：2008-01-31

    申请人： James B. Kimble ,  Zhenhua Mao ,  Edward J. Nanni ,  Edward G. Latimer

    发明人： James B. Kimble ,  Zhenhua Mao ,  Edward J. Nanni ,  Edward G. Latimer

    IPC分类号： B05D3/00 ,  C01B25/45

    CPC分类号： H01M4/5825 ,  C01B25/45

    摘要： This invention relates to a process for producing an improved cathode powder for making lithium ion batteries wherein the powder comprises lithium, vanadium and a polyanion. The process includes forming a solution-suspension of the precursors, which include vanadium pentoxide, with a reducing agent, a solvent, and a carbon-residue-forming material. The reducing agent causes the vanadium in vanadium pentoxide to reduce from V5+ to V3+. The solution-suspension is heated in an inert environment to drive the synthesis of the LVP (Li3V2(PO4)3) such that the carbon-residue-forming material is also oxidized to precipitate in and on the LVP forming carbon-containing LVP or CCLVP. The liquids are separated from the solids and the dry powder is heated to a second higher temperature to drive the crystallization of the product. The resulting product retains a small particle size, includes carbon in the LVP for conductivity and is created with very low cost precursors and avoids the need for milling or other processing to reduce the product to a particle size suitable for use in batteries. It also does not require the addition of carbon black, graphite or other form of carbon to provide the conductivity required for use in batteries.

    摘要翻译： 本发明涉及一种制备用于制备锂离子电池的改进的阴极粉末的方法，其中该粉末包括锂，钒和聚阴离子。 该方法包括形成包含五氧化二钒的前体与还原剂，溶剂和形成碳残留物的溶液的悬浮液。 还原剂使五氧化二钒中的钒从V5 +降低至V3 +。 将溶液 - 悬浮液在惰性环境中加热以驱动LVP（Li 3 V 2（PO 4）3）的合成），使得碳残留物形成材料也被氧化沉淀在LVP形成含碳的LVP或CCLVP中 。 将液体与固体分离，将干燥粉末加热至第二较高温度以驱使产物结晶。 所得到的产品保持小的粒度，包括LVP中的导电性碳，并且以非常低成本的前体产生，并且避免需要研磨或其它加工以将产品降低至适合用于电池的粒度。 它也不需要添加炭黑，石墨或其他形式的碳，以提供用于电池所需的电导率。

    PROCESS FOR MAKING COMPOSITE LITHIUM POWDERS FOR BATTERIES
    2.
    发明申请
    PROCESS FOR MAKING COMPOSITE LITHIUM POWDERS FOR BATTERIES 审中-公开
    制造电池用复合锂电池的方法

    公开(公告)号：US20100154206A1

    公开(公告)日：2010-06-24

    申请号：US12339846

    申请日：2008-12-19

    申请人： Zhenhua Mao ,  Daniel H. Irvin ,  Mark W. Carel ,  Edward J. Nanni ,  Edward G. Latimer ,  James B. Kimble

    发明人： Zhenhua Mao ,  Daniel H. Irvin ,  Mark W. Carel ,  Edward J. Nanni ,  Edward G. Latimer ,  James B. Kimble

    IPC分类号： H01M4/82 ,  H01B1/06

    CPC分类号： H01B1/08 ,  C01G53/42 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/364 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/0525 ,  Y10T29/49115

    摘要： This invention relates to lithium-ion batteries and cathode powders for making lithium-ion batteries where the cathode powder comprises a blend or mixture of at least one lithium transition metal poly-anion and with one or more lithium transition-metal oxide powders. A number of different lithium transition-metal oxides are suitable, especially formulations that include nickel, manganese and cobalt. The preferred lithium transition metal poly-anion is carbon-containing lithium vanadium phosphate. Batteries using the mixture or blend of these powders have been found to have high specific capacity, especially based on volume, high cycle life, substantially improved safety issues as compared to lithium transition-metal oxides, per se, and an attractive electrode potential profile.

    摘要翻译： 本发明涉及用于制造锂离子电池的锂离子电池和阴极粉末，其中阴极粉末包含至少一种锂过渡金属多阴离子和一种或多种锂过渡金属氧化物粉末的共混物或混合物。 许多不同的锂过渡金属氧化物是合适的，特别是包括镍，锰和钴的制剂。 优选的锂过渡金属多阴离子是含碳的磷酸钒锂。 已经发现使用这些粉末的混合物或混合物的电池具有高比容量，特别是基于体积，高循环寿命，与锂过渡金属氧化物本身相比显着改善的安全性问题以及吸引电极电位分布。

    METHODS OF PREPARING CARBONACEOUS ANODE MATERIALS AND USING SAME
    4.
    发明申请
    METHODS OF PREPARING CARBONACEOUS ANODE MATERIALS AND USING SAME 有权
    制备碳阳极材料并使用其的方法

    公开(公告)号：US20070286792A1

    公开(公告)日：2007-12-13

    申请号：US11422824

    申请日：2006-06-07

    申请人： Zhenhua Mao ,  Edward J. Nanni ,  Mark W. Carel

    发明人： Zhenhua Mao ,  Edward J. Nanni ,  Mark W. Carel

    IPC分类号： C01B31/04

    CPC分类号： H01M4/587 ,  C01B32/20 ,  H01M10/052

    摘要： A method for the production of carbon particles comprising selecting a precursor material, sizing said precursor material, stabilizing said precursor material, carbonizing said precursor material, and graphitizing said precursor material, wherein the precursor material has a volatile matter content of from about 5 wt. % to about 60 wt. %. A method for the production of electrode materials comprising selecting a precursor material, sizing said precursor material, stabilizing said precursor material, carbonizing said precursor material, and graphitizing said precursor material, wherein said electrode material has an average particle size of from about 1 μm to about 50 μm, a fixed carbon content of greater than about 80 wt. %, and a graphitic. structure. A carbon particle having an average particle size of from about 1 μm to about 50 μm, a degree of stabilization of from about 0.1 wt. % to about 10 wt. %, a fixed carbon content of greater than about 80 wt. %, and a graphitic structure.

    摘要翻译： 一种用于生产碳颗粒的方法，包括选择前体材料，调整所述前体材料的尺寸，稳定所述前体材料，碳化所述前体材料，以及石墨化所述前体材料，其中所述前体材料的挥发物含量为约5wt。 ％至约60wt。 ％。 一种用于生产电极材料的方法，包括选择前体材料，调整所述前体材料的尺寸，稳定所述前体材料，碳化所述前体材料，并石墨化所述前体材料，其中所述电极材料的平均粒度为约1μm至 约50μm，固定碳含量大于约80wt。 ％，和石墨。 结构体。 平均粒度为约1〜50μm的碳粒子，稳定度为约0.1重量％ ％至约10wt。 ％，固定碳含量大于约80wt。 ％，和石墨结构。

    Methods of preparing carbonaceous anode materials and using same
    6.
    发明授权
    Methods of preparing carbonaceous anode materials and using same 有权
    制备碳质阳极材料及其使用方法

    公开(公告)号：US07597999B2

    公开(公告)日：2009-10-06

    申请号：US11422824

    申请日：2006-06-07

    申请人： Zhenhua Mao ,  Edward J. Nanni ,  Mark W. Carel

    发明人： Zhenhua Mao ,  Edward J. Nanni ,  Mark W. Carel

    IPC分类号： H01M4/58 ,  H01B1/04

    CPC分类号： H01M4/587 ,  C01B32/20 ,  H01M10/052

    摘要： A method for the production of carbon particles comprising selecting a precursor material, sizing said precursor material, stabilizing said precursor material, carbonizing said precursor material, and graphitizing said precursor material, wherein the precursor material has a volatile matter content of from about 5 wt. % to about 60 wt. %. A method for the production of electrode materials comprising selecting a precursor material, sizing said precursor material, stabilizing said precursor material, carbonizing said precursor material, and graphitizing said precursor material, wherein said electrode material has an average particle size of from about 1 μm to about 50 μm, a fixed carbon content of greater than about 80 wt. %, and a graphitic structure. A carbon particle having an average particle size of from about 1 μm to about 50 μm, a degree of stabilization of from about 0.1 wt. % to about 10 wt. %, a fixed carbon content of greater than about 80 wt. %, and a graphitic structure.

    摘要翻译： 一种用于生产碳颗粒的方法，包括选择前体材料，调整所述前体材料的尺寸，稳定所述前体材料，碳化所述前体材料，以及石墨化所述前体材料，其中所述前体材料的挥发物含量为约5wt。 ％至约60wt。 ％。 一种用于生产电极材料的方法，包括选择前体材料，调整所述前体材料的尺寸，稳定所述前体材料，碳化所述前体材料，并石墨化所述前体材料，其中所述电极材料的平均粒度为约1μm至 约50μm，固定碳含量大于约80wt。 ％，和石墨结构。 平均粒度为约1〜50μm的碳粒子，稳定度为约0.1重量％ ％至约10wt。 ％，固定碳含量大于约80wt。 ％，和石墨结构。

    Carbon-Coated Silicon Particle Powder as the Anode Material for Lithium Ion Batteries and Method of Making the Same
    8.
    发明申请
    Carbon-Coated Silicon Particle Powder as the Anode Material for Lithium Ion Batteries and Method of Making the Same 审中-公开
    碳涂覆的硅颗粒粉末作为锂离子电池的阳极材料及其制备方法

    公开(公告)号：US20090130562A1

    公开(公告)日：2009-05-21

    申请号：US12329670

    申请日：2008-12-08

    申请人： Zhenhua Mao ,  Bharat Chahar

    发明人： Zhenhua Mao ,  Bharat Chahar

    IPC分类号： H01M4/58 ,  B32B9/00 ,  H01M10/00 ,  H01M6/00

    CPC分类号： H01M4/583 ,  C25D17/10 ,  H01M4/0416 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/133 ,  H01M4/134 ,  H01M4/366 ,  H01M4/38 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  Y10T29/49108 ,  Y10T29/53135 ,  Y10T428/2995

    摘要： A process for the production of coated silicon/carbon particles comprising: providing a carbon residue forming material; providing silicon particles; coating said silicon particles with said carbon residue forming material to form coated silicon particles; providing particles of a carbonaceous material; coating said particles of carbonaceous material with said carbon residue forming material to form coated carbonaceous particles; embedding said coated silicon particles onto said coated carbonaceous particles to form silicon/carbon composite particles; coating said silicon/carbon composite particles with said carbon residue forming material to form coated silicon/carbon composite particles; and stabilizing the coated composite particles by subjecting said coated composite particles to an oxidation reaction. The coated composite particles will have a substantially smooth coating. The particles may be coated with multiple layers of carbon residue forming material/

    摘要翻译： 包括生产包覆的硅/碳颗粒的方法，包括：提供形成碳残渣的材料; 提供硅颗粒; 用所述形成碳残渣的材料涂覆所述硅颗粒以形成包覆的硅颗粒; 提供含碳材料的颗粒; 用所述碳残渣形成材料涂覆所述碳质材料颗粒以形成涂覆的碳质颗粒; 将所述涂覆的硅颗粒包埋在所述涂覆的碳质颗粒上以形成硅/碳复合颗粒; 用所述碳残渣形成材料涂覆所述硅/碳复合颗粒以形成涂覆的硅/碳复合颗粒; 并通过使所述涂覆的复合颗粒进行氧化反应来稳定涂覆的复合颗粒。 涂覆的复合颗粒将具有基本平滑的涂层。 颗粒可以涂覆有多层碳残渣形成材料/

    Electromechanical conversion system
    10.
    发明授权
    Electromechanical conversion system 失效
    机电转换系统

    公开(公告)号：US06949303B1

    公开(公告)日：2005-09-27

    申请号：US09546654

    申请日：2000-04-10

    申请人： Lonnie G. Johnson ,  Zhenhua Mao

    发明人： Lonnie G. Johnson ,  Zhenhua Mao

    IPC分类号： H01M4/38 ,  H01M14/00

    CPC分类号： H01M14/00 ,  H01M4/383

    摘要： An electrochemical conversion system (10) is disclosed having a housing (11) divided by a hydrogen concentration cell (12) so as to define a first chamber (13) and a second chamber (14). A first mass of hydride material (17) is contained within the first chamber while a second mass of hydride material (18) is contained within the second chamber. The hydrogen concentration cell has a first gas diffusion electrode (20), a second gas diffusion electrode (21) and a proton conductive membrane (22) therebetween. The release of hydrogen from one of the masses of hydride material and its redox reaction creates an electrical potential across the cell.

    摘要翻译： 公开了一种电化学转化系统（10），其具有由氢浓度池（12）分开的壳体（11），以限定第一室（13）和第二室（14）。 氢化物材料（17）的第一质量被包含在第一室内，而第二质量的氢化物材料（18）被包含在第二室内。 氢浓度单元在其间具有第一气体扩散电极（20），第二气体扩散电极（21）和质子传导膜（22）。 从氢化物材料之一中释放氢气及其氧化还原反应在电池上产生电势。