Electrochemical cell
    3.
    发明授权
    Electrochemical cell 失效
    电化学电池

    公开(公告)号:US4416957A

    公开(公告)日:1983-11-22

    申请号:US354276

    申请日:1982-03-03

    IPC分类号: H01M4/12 H01M6/14 H01M6/50

    CPC分类号: H01M6/14 H01M4/12 H01M6/5055

    摘要: A primary electrochemical cell operative to provide a warning indication toward the end of discharge of the cell signalling an approaching end-of-life of the cell. The cell includes a tubular porous carbon cathode structure disposed within a metal housing of the cell together with an anode structure and an electrolytic solution.The anode structure includes first and second electrochemically active elements, for example, lithium and calcium, having different oxidation potentials within the cell and consumable by electrochemical action within the cell during discharge of the cell. The consumption of the active elements during discharge of the cell results in the establishment of different and distinguishable operating voltages for the cell. The active elements are arranged with respect to each other such that the active element of higher oxidation potential (i.e., the lithium) is consumed prior to the other active element (i.e., the calcium). The change in value of the operating voltage of the cell due to successive consumptions of the two active elements is detected to provide a warning indication signalling the approaching end-of-life of the cell.

    摘要翻译: 主要电化学电池用于提供朝向电池放电结束的警告指示,从而发出电池接近的使用寿命。 电池包括设置在电池的金属外壳内的管状多孔碳阴极结构以及阳极结构和电解溶液。 阳极结构包括第一和第二电化学活性元素,例如锂和钙,其在电池内具有不同的氧化电位,并且在电池放电期间通过电池中的电化学作用消耗。 在电池放电期间的有源元件的消耗导致为电池建立不同且可区分的工作电压。 活性元素相对于彼此布置,使得具有较高氧化电位的活性元素(即锂)在另一活性元素(即,钙)之前被消耗。 检测由于两个有源元件的连续消耗导致的单元的工作电压的值的变化,以提供用于指示电池的接近寿命的报警指示。

    Method for reducing gas pressure in an electrochemical cell
    4.
    发明授权
    Method for reducing gas pressure in an electrochemical cell 失效
    降低电化学电池气体压力的方法

    公开(公告)号:US4303744A

    公开(公告)日:1981-12-01

    申请号:US207494

    申请日:1980-11-17

    CPC分类号: H01M6/50 H01M6/14

    摘要: A method for treating carbon-containing cathodes of a primary electrochemical cell for the purpose of reducing the gas pressure in the cell during open circuit and during discharge of the cell. The method of the invention includes purging the carbon-containing cathodes of the cell with sulfur dioxide or thionyl chloride gas to displace water and insoluble gases (oxygen and nitrogen, and argon or helium) entrapped within the carbon of the carbon-containing cathodes. The purge gas is soluble in an electrolytic solution including liquid thionyl chloride as is employed to activate the cell for use in discharge.

    摘要翻译: 一种用于处理初级电化学电池的含碳阴极的方法,用于在开路和电池放电期间降低电池中的气体压力。 本发明的方法包括用二氧化硫或亚硫酰氯气体清洗电池的含碳阴极,以置换包含在含碳阴极碳中的水和不溶性气体(氧和氮,以及氩或氦)。 净化气体可溶于包含液体亚硫酰氯的电解液,用于激活用于排放的电池。

    Composite proton exchange membrane and method of manufacturing the same
    5.
    发明授权
    Composite proton exchange membrane and method of manufacturing the same 有权
    复合质子交换膜及其制造方法

    公开(公告)号:US07252747B2

    公开(公告)日:2007-08-07

    申请号:US11543692

    申请日:2006-10-05

    IPC分类号: C25B9/10 C25C7/04 H01M2/16

    摘要: A composite proton exchange membrane and method of manufacturing the same. The composite proton exchange membrane comprises a proton exchange membrane which has been modified by replacing membrane protons in desired areas of the membrane with a cationic polymer. The cationic polymer is preferably formed by introducing a quaternary salt monomer into the membrane and then effecting the polymerization of the monomer. The modified areas of the proton exchange membrane exhibit increased strength, reduced water and gas permeability, reduced proton conductivity and reduced acidity. Accordingly, by modifying the periphery of the membrane, one can obtain an integral sealing edge for the membrane, and by modifying certain interior regions of the membrane, one can divide the membrane into a plurality of sealed segments.

    摘要翻译: 一种复合质子交换膜及其制造方法。 复合质子交换膜包括质子交换膜,其通过用阳离子聚合物替换膜的所需区域中的膜质子而被修饰。 阳离子聚合物优选通过将季盐单体引入膜然后进行单体的聚合而形成。 质子交换膜的改性区域表现出强度增加,水和气体渗透性降低,质子传导性降低,酸度降低。 因此,通过改变膜的周边,可以获得膜的整体密封边缘,并且通过改变膜的某些内部区域,可以将膜分成多个密封段。

    Electrolyte suitable for use in a lithium ion cell or battery
    7.
    发明授权
    Electrolyte suitable for use in a lithium ion cell or battery 有权
    电解液适用于锂离子电池或电池

    公开(公告)号:US08758946B2

    公开(公告)日:2014-06-24

    申请号:US11973293

    申请日:2007-10-04

    IPC分类号: H01M6/16

    摘要: Electrolyte suitable for use in a lithium ion cell or battery. According to one embodiment, the electrolyte includes a fluorinated lithium ion salt and a solvent system that solvates lithium ions and that yields a high dielectric constant, a low viscosity and a high flashpoint. In one embodiment, the solvent system includes a mixture of an aprotic lithium ion solvating solvent and an aprotic fluorinated solvent.

    摘要翻译: 电解液适用于锂离子电池或电池。 根据一个实施方案,电解质包括氟化锂离子盐和溶剂化锂离子并且产生高介电常数,低粘度和高闪点的溶剂体系。 在一个实施方案中,溶剂系统包括非质子性锂离子溶剂化溶剂和非质子性氟化溶剂的混合物。

    Gas sensor
    9.
    发明申请
    Gas sensor 审中-公开
    气体传感器

    公开(公告)号:US20090218235A1

    公开(公告)日:2009-09-03

    申请号:US12317935

    申请日:2008-12-29

    IPC分类号: G01N27/26

    CPC分类号: G01N27/127 G01N33/0047

    摘要: Metal-oxide gas sensor. According to one embodiment, the sensor includes a layer or pellet of tungsten trioxide (WO3) substituted with one or more added metals. Preferably, the added metals are substituted in a concentration between about 0.005 and 10%, have an oxidation state less than +6, and possess a similar ionic radius to W6+. The substituted metal oxides are preferably formed as nanoparticles and sintered into a dense structure or coating possessing a surface-depletion layer sensitive to the surface adsorption of gas molecules and whose resistance changes in a predictable manner with gas adsorption. The extent of resistance change, rate of change and rate of desorption can be different for different gases, depending on the gas molecule's polarizability, dipole moments and electron configuration. The sensor can be used in a wide range of temperatures and corrosive conditions because of the intrinsic stability of the substituted metal oxides.

    摘要翻译: 金属氧化物气体传感器。 根据一个实施例,传感器包括被一种或多种添加的金属取代的三氧化钨(WO3)的层或颗粒。 优选地,添加的金属以约0.005至10%的浓度被取代,具有小于+6的氧化态,并且具有与W6 +相似的离子半径。 取代的金属氧化物优选形成为纳米颗粒并烧结成致密结构或涂层,其具有对气体分子的表面吸附敏感的表面消耗层,并且其电阻以可预测的方式随气体吸附而变化。 取决于气体分子的极化率,偶极矩和电子结构,不同气体的电阻变化程度,变化率和解吸速率可以不同。 传感器可以在宽范围的温度和腐蚀条件下使用,因为取代的金属氧化物的固有稳定性。

    Electrolyte suitable for use in a lithium ion cell or battery
    10.
    发明申请
    Electrolyte suitable for use in a lithium ion cell or battery 有权
    电解液适用于锂离子电池或电池

    公开(公告)号:US20080193855A1

    公开(公告)日:2008-08-14

    申请号:US11973293

    申请日:2007-10-04

    IPC分类号: H01M6/16 H01M6/14

    摘要: Electrolyte suitable for use in a lithium ion cell or battery. According to one embodiment, the electrolyte includes a fluorinated lithium ion salt and a solvent system that solvates lithium ions and that yields a high dielectric constant, a low viscosity and a high flashpoint. In one embodiment, the solvent system includes a mixture of an aprotic lithium ion solvating solvent and an aprotic fluorinated solvent.

    摘要翻译: 电解液适用于锂离子电池或电池。 根据一个实施方案,电解质包括氟化锂离子盐和溶剂化锂离子并且产生高介电常数,低粘度和高闪点的溶剂体系。 在一个实施方案中,溶剂系统包括非质子性锂离子溶剂化溶剂和非质子性氟化溶剂的混合物。