Intercalation compounds and electrodes for batteries
    64.
    发明授权
    Intercalation compounds and electrodes for batteries 失效
    插层化合物和电池用电极

    公开(公告)号:US06787232B1

    公开(公告)日:2004-09-07

    申请号:US09686331

    申请日:2000-10-11

    IPC分类号: B32B5106

    摘要: This invention concerns intercalation compounds and in particular lithium intercalation compounds which have improved properties for use in batteries. Compositions of the invention include particulate metal oxide material having particles of multicomponent metal oxide, each including an oxide core of at least first and second metals in a first ratio, and each including a surface coating of metal oxide or hydroxide that does not include the first and second metals in the first ratio formed by segregation of at least one of the first and second metals from the core. The core may preferably comprise LixMyNzO2 wherein M and N are metal atom or main group elements, x, y and z are numbers from about 0 to about 1 and y and z are such that a formal charge on MyNz portion of the compound is (4−x), and having a charging voltage of at least about 2.5V. The invention may also be characterized as a multicomponent oxide microstructure usable as a lithium intercalation material including a multiphase oxide core and a surface layer of one material, which is a component of the multiphase oxide core, that protects the underlying intercalation material from chemical dissolution or reaction. In a particular preferred example the multicomponent oxide may be an aluminum-doped lithium manganese oxide composition. Such aluminum-doped lithium manganese oxide compositions, having an orthorhombic structure, also form a part of the invention. In addition, the invention includes articles, particularly electrodes, for batteries formed from the compositions of the invention, and batteries including such electrodes. The invention further relates to a composite intercalation material comprising at least two compounds in which at least one compound has an orthorhombic structure LixAlyMn1−yO2, where y is nonzero, or a mixture of orthorhombic and monoclinic LixAlyMn1−yO2.

    摘要翻译: 本发明涉及插层化合物,特别是具有改进的用于电池的性能的锂嵌入化合物。 本发明的组合物包括具有多组分金属氧化物颗粒的颗粒状金属氧化物材料,每个包含至少第一和第二金属的氧化物核心的第一比例,并且各自包括金属氧化物或氢氧化物的表面涂层,其不包括第一 并且所述第一比例中的第二金属通过所述第一和第二金属中的至少一种与所述芯分离而形成。 核心可以优选包含LixMyNzO 2,其中M和N是金属原子或主要元素,x,y和z是约0至约1的数,y和z使得化合物的MyNz部分上的正电荷是(4 -x),并具有至少约2.5V的充电电压。 本发明还可以被表征为可用作锂嵌入材料的多组分氧化物微结构,其包括多相氧化物芯和作为多相氧化物芯的组分的一种材料的表面层,其保护潜在的插层材料免受化学溶解或 反应。 在特别优选的实例中,多组分氧化物可以是掺铝的锂锰氧化物组合物。 具有正交结构的这种掺铝的锂锰组合物也构成本发明的一部分。 此外,本发明包括用于由本发明的组合物形成的电池的制品,特别是电极,以及包括这种电极的电池。 本发明还涉及包含至少两种化合物的复合插层材料,其中至少一种化合物具有正交结构LixAlyMn1-yO2,其中y不为零,或是斜方晶和单斜晶LixAlyMn1-yO2的混合物。

    Fuel system using redox flow battery
    68.
    发明授权
    Fuel system using redox flow battery 有权
    燃油系统采用氧化还原液电池

    公开(公告)号:US08778552B2

    公开(公告)日:2014-07-15

    申请号:US12755379

    申请日:2010-04-06

    IPC分类号: H01M10/14

    摘要: An automotive or other power system including a flow cell, in which the stack that provides power is readily isolated from the storage vessels holding the cathode slurry and anode slurry (alternatively called “fuel”) is described. A method of use is also provided, in which the “fuel” tanks are removable and are separately charged in a charging station, and the charged fuel, plus tanks, are placed back in the vehicle or other power system, allowing fast refueling. The technology also provides a charging system in which discharged fuel is charged. The charged fuel can be placed into storage tanks at the power source or returned to the vehicle. In some embodiments, the charged fuel in the storage tanks can be used at a later date. The charged fuel can be transported or stored for use in a different place or time.

    摘要翻译: 描述了包括流动池的汽车或其它动力系统,其中提供动力的堆叠容易地与保持阴极浆料和阳极浆料(备选地称为“燃料”)的储存容器隔离。 还提供了一种使用方法,其中“燃料”罐是可移除的并且分别装入充电站中,并且带电燃料加上罐被放回到车辆或其他动力系统中,允许快速加油。 该技术还提供了一种在其中对放电燃料进行充电的充电系统。 带电燃料可以放置在电源的储罐中或返回车辆。 在一些实施例中,储存罐中的带电燃料可以在以后使用。 带电燃料可以运输或储存在不同的地方或时间使用。

    High energy density redox flow device
    69.
    发明授权
    High energy density redox flow device 有权
    高能量密度氧化还原流量装置

    公开(公告)号:US08722226B2

    公开(公告)日:2014-05-13

    申请号:US12970773

    申请日:2010-12-16

    IPC分类号: H01M4/36 H01M6/30 H01M2/38

    摘要: Redox flow devices are described including a positive electrode current collector, a negative electrode current collector, and an ion-permeable membrane separating said positive and negative current collectors, positioned and arranged to define a positive electroactive zone and a negative electroactive zone; wherein at least one of said positive and negative electroactive zone comprises a flowable semi-solid composition comprising ion storage compound particles capable of taking up or releasing said ions during operation of the cell, and wherein the ion storage compound particles have a polydisperse size distribution in which the finest particles present in at least 5 vol % of the total volume, is at least a factor of 5 smaller than the largest particles present in at least 5 vol % of the total volume.

    摘要翻译: 描述了氧化还原流动装置,其包括正极集电器,负极集电器和分离所述正集电器和负极集电器的离子可渗透膜,所述正和负集电器被定位和布置以限定正电活性区和负电活性区; 其中所述正电活性区和负电活性区中的至少一个包含可流动的半固体组合物,其包含能够在电池操作期间吸收或释放所述离子的离子存储化合物颗粒,并且其中所述离子存储化合物颗粒具有多分散尺寸分布 其中最细颗粒以总体积的至少5体积%存在,至少比总体积的至少5体积%中存在的最大颗粒小5倍。