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6 条记录 (耗时 0.025 秒)

    OPTIMIZATION OF CARBON COATINGS
    1.
    发明申请
    OPTIMIZATION OF CARBON COATINGS 审中-公开
    碳涂料的优化

    公开(公告)号：US20090183650A1

    公开(公告)日：2009-07-23

    申请号：US12302476

    申请日：2007-06-12

    申请人： Marca M. Doeff ,  James D. Wilcox ,  Robert Kostecki ,  Grace Y. Lau

    发明人： Marca M. Doeff ,  James D. Wilcox ,  Robert Kostecki ,  Grace Y. Lau

    IPC分类号： C09D1/00 ,  B05D5/12

    CPC分类号： C01B25/45 ,  H01M4/136 ,  H01M4/366 ,  H01M4/5825

    摘要： Several synthetic additives have been used to improve the carbon coatings on LiFePO4 electrode materials. Pyromellitic acid (PA) added prior to calcination decreases the D/G ratios of the carbon produced in situ, while the use of both iron nitrate and PA results in increased sp2 character. Thus, the carbon coatings are structured with a greater fraction of graphitic character. The production of structured carbon coatings results in higher pressed pellet conductivities of LiFePO4/C composites and improved electrochemical performance of cells containing these cathode materials, although the carbon content is not necessarily increased. The combination of both ferrocene and PA used during LiFePO4 synthesis causes more carbon to be retained, although the structural characteristics are similar to that produced from the same amount of PA alone.

    摘要翻译： 已经使用几种合成添加剂来改善LiFePO 4电极材料上的碳涂层。 煅烧前添加的均苯四酸（PA）降低了原位产生的碳的D / G比，而使用硝酸铁和PA也增加了sp2特性。 因此，碳涂层被构造成具有较大分数的石墨性质。 结构化碳涂层的生产导致LiFePO 4 / C复合材料的较高的压片导电率和提高含有这些阴极材料的电池的电化学性能，尽管碳含量不一定增加。 在LiFePO 4合成中使用的二茂铁和PA的组合导致更多的碳被保留，尽管其结构特征类似于仅由相同量的PA产生的结构特征。

    Aluminum Substituted Mixed Transition Metal Oxide Cathode Materials for Lithium Ion Batteries
    2.
    发明申请
    Aluminum Substituted Mixed Transition Metal Oxide Cathode Materials for Lithium Ion Batteries 审中-公开
    用于锂离子电池的铝取代的混合过渡金属氧化物阴极材料

    公开(公告)号：US20110291043A1

    公开(公告)日：2011-12-01

    申请号：US13119703

    申请日：2009-09-23

    申请人： James D. Wilcox ,  Marca M. Doeff

    发明人： James D. Wilcox ,  Marca M. Doeff

    IPC分类号： H01M4/525

    CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525

    摘要： A mixed transition metal oxide is provided described wherein Aluminum is partially substituted for Cobalt in a Li[NixCoyMnz]O2 composition wherein the resulting aluminum substituted product Li[Ni0.4Co0.2-yAlyMn0.4]O2 is less costly than the parent product, is safer to use, and provides enhanced electrochemical performance as a cathode material for use in Lithium-ion based batteries.

    摘要翻译： 提供了一种混合的过渡金属氧化物，其中铝在Li [NixCoyMnz] O 2组合物中部分地代替钴，其中所得的铝取代产物Li [Ni0.4Co0.2-yAlyMn0.4] O2比母体产品成本低， 使用更安全，并且提供作为用于锂离子电池的阴极材料的增强的电化学性能。

    Electrochromic device using mercaptans and organothiolate compounds
    3.
    发明授权
    Electrochromic device using mercaptans and organothiolate compounds 失效
    使用硫醇和有机硫酸盐化合物的电致变色装置

    公开(公告)号：US5442478A

    公开(公告)日：1995-08-15

    申请号：US872830

    申请日：1992-04-23

    申请人： Carl M. Lampert ,  Yan-ping Ma ,  Marca M. Doeff ,  Steven Visco

    发明人： Carl M. Lampert ,  Yan-ping Ma ,  Marca M. Doeff ,  Steven Visco

    IPC分类号： G02F1/15 ,  G02F1/155 ,  H01M4/60 ,  H01M10/052 ,  H01M10/0565 ,  G02F1/153

    CPC分类号： H01M10/052 ,  G02F1/1525 ,  G02F1/155 ,  H01M10/0565 ,  H01M4/60 ,  G02F2201/121 ,  G02F2202/022 ,  G02F2203/01

    摘要： An electrochromic cell is disclosed which comprises an electrochromic layer and a composite ion counter electrode for transporting ions. The counter electrode further comprises a polymer electrolyte material and an organosulfur material in which, in its discharged state, the organosulfur material is further comprised of a mercaptan or an organothiolate. In one preferred embodiment, both the electrochromic electrode and the counter electrode are transparent either to visible light or to the entire electromagnetic spectrum in both charged and discharged states. An electrochromic device is disclosed which comprises one or more electrochromic electrodes encased in glass or plastic plates on the inner surface of each of which is formed a transparent electrically conductive film. Electrical contacts, which are in electrical contact with the conductive films, facilitate external electrical connection.

    摘要翻译： 公开了一种电致变色电池，其包括用于输送离子的电致变色层和复合离子对电极。 对电极还包括聚合物电解质材料和有机硫材料，其中在其排出状态下，有机硫材料还包含硫醇或有机硫醇盐。 在一个优选实施例中，电致变色电极和对电极对于可见光或在充电和放电状态的整个电磁光谱都是透明的。 公开了一种电致变色装置，其包括一个或多个包含在玻璃或塑料板中的电致变色电极，其内表面上形成透明导电膜。 与导电膜电接触的电触点有助于外部电连接。

    Secondary cell with orthorhombic alkali metal/manganese oxide phase active cathode material
    5.
    发明授权
    Secondary cell with orthorhombic alkali metal/manganese oxide phase active cathode material 失效
    二次电池与正交碱金属/锰氧化物相活性阴极材料

    公开(公告)号：US5558961A

    公开(公告)日：1996-09-24

    申请号：US259658

    申请日：1994-06-13

    申请人： Marca M. Doeff ,  Marcus Y. Peng ,  Yanping Ma ,  Steven J. Visco ,  Lutgard C. DeJonghe

    发明人： Marca M. Doeff ,  Marcus Y. Peng ,  Yanping Ma ,  Steven J. Visco ,  Lutgard C. DeJonghe

    IPC分类号： C01G45/00 ,  H01M4/02 ,  H01M4/131 ,  H01M4/48 ,  H01M4/485 ,  H01M4/50 ,  H01M4/505 ,  H01M10/054 ,  H01M10/0565 ,  H01M10/36 ,  H01M10/38

    CPC分类号： H01M10/054 ,  C01G45/1221 ,  C01G45/1228 ,  C01G49/0072 ,  H01M4/505 ,  C01P2002/77 ,  C01P2002/90 ,  C01P2006/40 ,  H01M10/0565 ,  H01M2004/028 ,  H01M4/131 ,  H01M4/485

    摘要： An alkali metal manganese oxide secondary cell is disclosed which can provide a high rate of discharge, good cycling capabilities, good stability of the cathode material, high specific energy (energy per unit of weight) and high energy density (energy per unit volume). The active material in the anode is an alkali metal and the active material in the cathode comprises an orthorhombic alkali metal manganese oxide which undergoes intercalation and deintercalation without a change in phase, resulting in a substantially linear change in voltage with change in the state of charge of the cell. The active material in the cathode is an orthorhombic structure having the formula M.sub.x Z.sub.y Mn.sub.(1-y) O.sub.2, where M is an alkali metal; Z is a metal capable of substituting for manganese in the orthorhombic structure such as iron, cobalt or titanium; x ranges from about 0.2 in the fully charged state to about 0.75 in the fully discharged state, and y ranges from 0 to 60 atomic %. Preferably, the cell is constructed with a solid electrolyte, but a liquid or gelatinous electrolyte may also be used in the cell.

    摘要翻译： 公开了可以提供高放电率，良好的循环能力，良好的阴极材料稳定性，高比能（单位重量的能量）和高能量密度（每单位体积能量）的碱金属氧化锰二次电池。 阳极中的活性物质是碱金属，阴极中的活性物质包括正交碱金属锰氧化物，其经历插层和脱嵌而没有相变，导致电压随着电荷状态的变化而基本上线性变化 的细胞。 阴极中的活性物质是具有式M x Z y M n（1-y）O 2的斜方晶结构，其中M是碱金属; Z是能够代替铁，钴或钛等正交结构中的锰的金属; x在完全充电状态下为约0.2，在完全放电状态下为约0.75，y为0至60原子％。 优选地，电池由固体电解质构成，但也可以在电池中使用液态或凝胶状电解质。