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    • 4. 发明授权
    • Electrochemically controlled superconductivity
    • 电化学控制的超导性
    • US4911800A
    • 1990-03-27
    • US179047
    • 1988-04-08
    • Donald R. SadowayRobert M. Rose
    • Donald R. SadowayRobert M. Rose
    • G01N27/406C01B21/06C01G1/00C01G3/00C25B11/04G01J1/02G01R27/22G01R33/035G02F1/01H01L39/24
    • G01R27/22
    • The superconducting properties of superconducting compounds are controlled or maintained by active external electrochemical intervention. The superconducting compound forms one electrode in an electrochemical cell. A counterelectrode and the superconducting compound electrode are in contact with an electrolyte and a potential is applied between the counterelectrode and the superconducting electrode. The cell is operated at a temperature near the expected transition temperature of the superconducting material. The potential applied between the electrodes is selected to control a property such as transition temperature. In a preferred embodiment, a superconducting material such as Ba.sub.2 YCu.sub.3 O.sub.7-x serves as an anode and a counterelectrode such as a mercury-mercuric oxide reference electrode serves as a cathode. Suitable oxygen-bearing electrolytes are ozone and trifluoronitrosomethane. In another embodiment, a superconducting cuprate material serves as a cathode and the electrolyte is copper-bearing.
    • 通过活性外部电化学干预来控制或维持超导化合物的超导性能。 超导化合物在电化学电池中形成一个电极。 反电极和超导复合电极与电解质接触,并且在对电极和超导电极之间施加电位。 电池在接近超导材料的预期转变温度的温度下操作。 选择施加在电极之间的电位以控制诸如转变温度的性质。 在优选的实施方案中,诸如Ba 2 Y Cu 3 O 7-x的超导材料用作阳极,反电极例如汞 - 汞氧化物参比电极用作阴极。 合适的含氧电解质是臭氧和三氟亚硝基甲烷。 在另一个实施例中,超导铜酸盐材料用作阴极并且电解质是含铜的。
    • 6. 发明授权
    • Intercalation compounds and electrodes for batteries
    • 插层化合物和电池用电极
    • US06787232B1
    • 2004-09-07
    • US09686331
    • 2000-10-11
    • Yet-Ming ChiangDonald R. SadowayYoung-Il JangBiyan Huang
    • Yet-Ming ChiangDonald R. SadowayYoung-Il JangBiyan Huang
    • B32B5106
    • H01M4/131C01G45/1228C01P2002/54C01P2002/72C01P2002/77C01P2004/04C01P2006/40H01M4/366H01M4/485H01M4/505H01M10/0525H01M2004/021Y10T428/2991
    • 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.
    • 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。