DESIGN AND FABRICATION OF ELECTRODES WITH GRADIENTS
    1.
    发明申请
    DESIGN AND FABRICATION OF ELECTRODES WITH GRADIENTS 审中-公开
    具有梯度的电极的设计和制造

    公开(公告)号:US20120328942A1

    公开(公告)日:2012-12-27

    申请号:US13582778

    申请日:2011-03-07

    IPC分类号: H01M4/64

    CPC分类号: H01M4/587 H01M2004/021

    摘要: An electrode has a front face furthest from the current collector and a back face closest to the current collector and Is disposed on the current collector, and the electrode has a primary gradient of one of a chemical, physical and performance properties of the electroactive particle composition between the front and back faces, with the proviso that the primary gradient is not a bulk porosity gradient. In some embodiments, the electrode further comprises one or more secondary gradients Imposed over the primary gradient. The secondary gradient is one or more gradients selected from the group consisting of particle size gradient, particle size distribution gradient, particle morphology gradient, particle internal porosity, bulk porosity, particle volumetric charge-transfer resistance gradient, particle specific surface area gradient, particle crystalline structure gradient, particle crystallite size gradient, particle chemical composition gradient, particle robustness to cycling gradient, binder gradient, conductive additive gradient, and combinations thereof.

    摘要翻译: 电极具有与集电体最远的前面和最靠近集电体的背面,并且设置在集电体上,并且电极具有电活性颗粒组合物的化学,物理和性能之一的一级梯度 在前面和后面之间,条件是主梯度不是体积孔隙度梯度。 在一些实施例中,电极还包括暴露于主梯度上的一个或多个次级梯度。 次级梯度是选自粒度梯度,粒度分布梯度,颗粒形态梯度,颗粒内部孔隙率,体积孔隙率,颗粒体积电荷转移阻力梯度,颗粒比表面积梯度,颗粒结晶度的一个或多个梯度 结构梯度,颗粒微晶尺寸梯度,颗粒化学组成梯度,颗粒对循环梯度的鲁棒性,粘合剂梯度,导电添加剂梯度及其组合。

    Battery tab location design and method of construction
    3.
    发明授权
    Battery tab location design and method of construction 有权
    电池片位置设计及施工方法

    公开(公告)号:US08084158B2

    公开(公告)日:2011-12-27

    申请号:US11748286

    申请日:2007-05-14

    IPC分类号: H01M2/26 H01M2/20 H01M4/66

    摘要: A compact, robust, multifunctional and highly manufacturable rechargeable cylindrical electrochemical cell is provided. In some embodiments, a cell can include a spirally wound assembly having an anode sheet and a cathode sheet separated by separator membranes, each sheet having a electroactive layer on a current collector. At least one of the current collectors can be in electrical communication with conducting tabs that extend from at least one of the anode sheet and the cathode sheet, the conducting tabs extends from an end face of the spirally wound assembly. The centers of the plurality of conducting tabs can be located within a 90 degree quadrant of an end face of the spirally wound assembly.

    摘要翻译: 提供了紧凑,坚固,多功能和高度可制造的可充电圆柱形电化学电池。 在一些实施例中,电池可以包括螺旋卷绕的组件,其具有由隔膜隔开的阳极片和阴极片,每个片在集电器上具有电活性层。 电流收集器中的至少一个可以与从阳极片和阴极片中的至少一个延伸的导电片电连通,导电片从螺旋缠绕组件的端面延伸。 多个导电突片的中心可以位于螺旋卷绕组件的端面的90度象限内。

    Superconductors
    6.
    发明授权
    Superconductors 失效
    超导体

    公开(公告)号:US06495765B2

    公开(公告)日:2002-12-17

    申请号:US09797487

    申请日:2001-03-01

    IPC分类号: H01B1200

    CPC分类号: H01L39/248 Y10T29/49014

    摘要: A modified powder-in-tube process produces a superconductor wire having a significantly greater current density than will a superconductor wire of the same nominal superconductor composition produced using conventional draw-swage-extrude-roll deformation. In the process disclosed, a superconductor precursor is placed within a ductile tube, the tube with the powder therein is then deformed into a cross-section substantially corresponding to that of the end product, and the deformed tube is then subject to a plurality of heat treatments to convert the precursor into the desired superconducting ceramic oxide phase. Before the last of the heat treatments, the tube is isostatically pressed to densify and texture the superconductor precursor oxide in the tube.

    摘要翻译: 改进的管内管式工艺产生的超导体线具有比使用常规拉伸 - 挤压 - 辊变形产生的相同标称超导体组合物的超导体线显着更大的电流密度。 在所公开的方法中,将超导体前体放置在延性管内,然后将其中具有粉末的管变形为基本上对应于最终产品的横截面,然后使变形的管经受多个热 将前体转化成所需的超导陶瓷氧化物相的处理。 在最后一次热处理之前,等离子体压制管子以致密化并管理管中的超导体前体氧化物。

    Processing of oxide superconductors
    7.
    发明授权
    Processing of oxide superconductors 失效
    氧化物超导体的加工

    公开(公告)号:US06436876B1

    公开(公告)日:2002-08-20

    申请号:US09861248

    申请日:2001-05-18

    IPC分类号: C04B3564

    摘要: A method for preparing a BSCCO-2223 oxide superconducting article includes annealing an oxide superconductor article comprised of BSCCO-2223 oxide superconductor at a temperature selected from the range of about 500° C.≦T≦787° C. and an annealing atmosphere having an oxygen pressure selected from within the region having a lower bound defined by the equation, PO2(lower)≧3.5×1010 exp(−32,000/T+273) and an upper bound defined by the equation, PO2(upper)≦1.1×1012 exp(−32,000/T+273). The article is annealed for a time sufficient to provide at least a 10% increase in critical current density as compared to the critical current density of the pre-anneal oxide superconductor article. An oxide superconductor having the formula Bi2−yPbySr2Ca2Cu3O10+x, where 0≦x≦1.5 and where 0≦y≦0.6 is obtained, the oxide superconductor characterized by a critical transition temperature of greater than 111.0 K, as determined by four point probe method.

    摘要翻译: 制备BSCCO-2223氧化物超导制品的方法包括在选自约500℃的温度范围内对由BSCCO-2223氧化物超导体组成的氧化物超导体制品进行退火。<= T <= 787℃和退火气氛 PO2(下)> = 3.5×10 10 exp(-32,000 / T + 273)和由上式定义的上限的PO2(上)<= 1.1×1012 exp(-32,000 / T + 273)。 与预退火氧化物超导体制品的临界电流密度相比,该制品退火足以提供临界电流密度至少10%的时间。 具有式Bi2-yPbySr2Ca2Cu3O10 + x的氧化物超导体,其中0 <= x <= 1.5,其中0 <= y <= 0.6,所述氧化物超导体的特征在于临界转变温度大于111.0K,如由 四点探针法。

    Low resistance cabled conductors comprising superconducting ceramics
    8.
    发明授权
    Low resistance cabled conductors comprising superconducting ceramics 失效
    低电阻电缆导体包括超导陶瓷

    公开(公告)号:US06284979B1

    公开(公告)日:2001-09-04

    申请号:US08851719

    申请日:1997-05-05

    IPC分类号: H01B1210

    CPC分类号: H01L39/143

    摘要: A cabled conductor is provided for use in a cryogenically cooled circuit including refrigeration having a predetermined operating temperature and efficiency. The conductor includes multiple conductor strands cabled about the longitudinal axis of the conductor at a preselected cabling period, each strand including a composite of superconducting ceramic in intimate contact with conductive matrix material. Each filament has high performance regions in which the filament material is well-textured with its preferred direction aligned perpendicular to the widest longitudinal cross-section of the conductor alternating with poorly superconducting regions which are at least about half the diameter of a filament in length and in which the superconducting ceramic filament is strained by transposition in excess of its critical strain limit. In the poorly superconducting regions, the conductive matrix material provides an alternate current path. The ratio of the average length of the poorly superconducting regions to the preselected cabling period is less than about (&rgr;300e/&rgr;oe)&egr;E, where &rgr;oe is the resistivity of the composite at the operating temperature; &rgr;300e is the resistivity of the composite at 300 Kelvins; and &egr; is the predetermined efficiency of the refrigeration means at its operating temperature. In the preferred embodiment, this ratio is less than 1:4, and preferably less than 1:20.

    摘要翻译: 提供一种用于低温冷却回路中的电缆导体,包括具有预定工作温度和效率的制冷。 导体包括在预选布线周期围绕导体的纵向轴线布置的多个导线,每个线包括与导电基体材料紧密接触的超导陶瓷的复合材料。 每个灯丝具有高性能区域,其中长丝材料具有良好的织构,其优选的方向垂直于导体的最宽纵向横截面排列,与导体长度的至少约一半长度的不良超导区交替, 其中超导陶瓷细丝通过转移超过其临界应变极限而变形。 在较差的超导区域中,导电基体材料提供了交替的电流路径。 不良超导区域的平均长度与预选布线周期的比值小于约(rho300e / rhooe)epsiE,其中r为复合材料在工作温度下的电阻率; rho300e是300 Kelvins的复合材料的电阻率; 而epsi是制冷装置在其工作温度下的预定效率。 在优选实施方案中,该比率小于1:4,优选小于1:20。

    High temperature superconducting composite conductor and method for
manufacture of same
    9.
    发明授权
    High temperature superconducting composite conductor and method for manufacture of same 有权
    高温超导复合导体及其制造方法

    公开(公告)号:US6122534A

    公开(公告)日:2000-09-19

    申请号:US147922

    申请日:1999-03-18

    IPC分类号: H01L39/14 H01L39/24 H01B12/00

    摘要: A process for increasing the resistivity of a HTS oxide composite sheath including heating a superconductive HTS oxide composite, the composite including a sheath including silver, in the presence of mercury at temperatures sufficient to form a silver--mercury alloy is provided together with a HTS oxide composite which includes a high temperature superconductor oxide core surrounded by a metallic sheath, the metallic sheath including silver and mercury.Also provided is a process for preparing a HTS oxide composite having an enhanced transport critical current density including placing the HTS oxide composite within a sealed, evacuated container, and, heating the HTS oxide composite for time and at temperatures sufficient for enhancement of transport critical current density in comparison to the transport critical current density of the HTS oxide composite prior to the heating.

    摘要翻译: PCT No.PCT / US97 / 16916 Sec。 371 1999年3月18日 102(e)1999年3月18日PCT 1997年9月23日PCT公布。 第WO98 / 14961号公报 日本1994年4月9日提供了一种用于提高HTS氧化物复合护套的电阻率的方法,其包括加热超导HTS氧化物复合物,该复合材料包括含银的护套,在汞存在下,在足以形成银汞合金的温度下, 以及包括由金属护套包围的高温超导体氧化物芯的HTS氧化物复合物,金属护套包括银和汞。 还提供了一种制备具有增强的输送临界电流密度的HTS氧化物复合材料的方法,包括将HTS氧化物复合材料放置在密封的抽真空的容器内,并且在足以提高输送临界电流的时间和温度下加热HTS氧化物复合材料 与在加热之前的HTS氧化物复合材料的输送临界电流密度相比较的密度。