Cell cap assembly having frangible tab disconnect mechanism
    1.
    发明授权
    Cell cap assembly having frangible tab disconnect mechanism 失效
    电池盖组件具有易碎片断开机构

    公开(公告)号:US5609972A

    公开(公告)日:1997-03-11

    申请号:US610388

    申请日:1996-03-04

    摘要: A cell pressure control system is disclosed which includes a conductive frangible tab which tears in response to a defined pressure. The frangible tab is affixed at one position to a stationary member and at another position to a deflection member which deflects in response to increasing internal cell pressure. When the cell pressure increases to a dangerous level, the deflection member exerts sufficient pressure on the frangible tab to cause it to break. When the tab breaks, the cell goes to open circuit, thus reducing the danger of continued pressure build up. If the cell's internal pressure continues to increase even after the pressure contact is opened, a second stage of the pressure control mechanism may be activated. Specifically, a pressure rupturable region in the above-mentioned deflection member will rupture and release the cell's internal pressure.

    摘要翻译: 公开了一种电池压力控制系统,其包括响应于限定压力而撕裂的导电易碎片。 易碎翼片在一个位置处固定到固定构件,并且在另一位置附接到偏转构件,该偏转构件响应于增加的内部单元压力而偏转。 当电池压力增加到危险水平时,偏转构件对易碎片施加足够的压力以使其破裂。 当标签断裂时,电池开路,从而降低持续压力积聚的危险。 即使在压力接触打开之后电池的内部压力也继续增加,压力控制机构的第二级可以被激活。 具体地,上述偏转构件中的压力破裂区域将破裂并释放电池的内部压力。

    Method for making thin carbon foam electrodes
    2.
    发明授权
    Method for making thin carbon foam electrodes 失效
    制造薄碳泡沫电极的方法

    公开(公告)号:US5932185A

    公开(公告)日:1999-08-03

    申请号:US110003

    申请日:1993-08-23

    摘要: A method for fabricating thin, flat carbon electrodes by infiltrating highly porous carbon papers, membranes, felts, metal fibers/powders, or fabrics with an appropriate carbon foam precursor material. The infiltrated carbon paper, for example, is then cured to form a gel-saturated carbon paper, which is subsequently dried and pyrolyzed to form a thin sheet of porous carbon. The material readily stays flat and flexible during curing and pyrolyzing to form thin sheets. Precursor materials include polyacrylonitrile (PAN), polymethylacrylonitrile (PMAN), resorcinol/formaldehyde, catechol/formaldehyde, phenol/formaldehyde, etc., or mixtures thereof. These thin films are ideal for use as high power and energy electrodes in batteries, capacitors, and fuel cells, and are potentially useful for capacitive deionization, filtration and catalysis.

    摘要翻译: 通过用合适的碳泡沫前体材料渗透高度多孔碳纸,膜,毡,金属纤维/粉末或织物来制造薄的扁平碳电极的方法。 然后将渗透的碳纸固化以形成凝胶饱和碳纸,随后将其干燥并热解,形成多孔碳薄片。 该材料在固化和热解过程中易于保持平坦和柔性,形成薄片。 前体材料包括聚丙烯腈(PAN),聚甲基丙烯腈(PMAN),间苯二酚/甲醛,邻苯二酚/甲醛,苯酚/甲醛等,或其混合物。 这些薄膜非常适用于电池,电容器和燃料电池中的高功率和高能量电极,并且可用于电容去离子,过滤和催化。

    Capacitor with a composite carbon foam electrode
    4.
    发明授权
    Capacitor with a composite carbon foam electrode 失效
    电容器用复合碳泡沫电极

    公开(公告)号:US5898564A

    公开(公告)日:1999-04-27

    申请号:US760852

    申请日:1996-12-02

    IPC分类号: H01B1/04 H01G9/04

    摘要: Carbon aerogels used as a binder for granularized materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid partides being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivity and power to system energy.

    摘要翻译: 用作颗粒状材料(包括其他形式的碳和金属添加剂)的粘合剂的碳气凝胶被浇铸到碳或金属纤维基材上以形成复合碳薄膜片。 薄膜片用于电化学储能应用,例如电化学双层电容器(aerocapacitors),锂基电池插入电极,燃料电池电极和电容去离子电极。 复合碳泡沫可以通过先前已知的方法形成,但是在该方法的液相期间,即在凝胶化之前加入固体成分。 碳的其他形式可以包括碳微球,碳粉,碳气凝胶粉或石墨碳。 可以加入金属和/或碳纤维以增加导电性。 材料和纤维的选择将取决于所使用的电解质和系统电阻率和功率对系统能量的相对折衷。

    Organic aerogel microspheres
    7.
    发明授权
    Organic aerogel microspheres 失效
    有机气凝胶微球

    公开(公告)号:US5908896A

    公开(公告)日:1999-06-01

    申请号:US586038

    申请日:1996-01-16

    摘要: Organic aerogel microspheres which can be used in capacitors, batteries, thermal insulation, adsorption/filtration media, and chromatographic packings, having diameters ranging from about 1 micron to about 3 mm. The microspheres can be pyrolyzed to form carbon aerogel microspheres. This method involves stirring the aqueous organic phase in mineral oil at elevated temperature until the dispersed organic phase polymerizes and forms nonsticky gel spheres. The size of the microspheres depends on the collision rate of the liquid droplets and the reaction rate of the monomers from which the aqueous solution is formed. The collision rate is governed by the volume ratio of the aqueous solution to the mineral oil and the shear rate, while the reaction rate is governed by the chemical formulation and the curing temperature.

    摘要翻译: 可用于电容器,电池,绝热,吸附/过滤介质和色谱填料的有机气凝胶微球,其直径范围为约1微米至约3毫米。 微球可以热解形成碳气凝胶微球。 该方法包括在升高的温度下在矿物油中搅拌含水有机相,直到分散的有机相聚合并形成不粘的凝胶球。 微球的大小取决于液滴的碰撞速率和形成水溶液的单体的反应速率。 碰撞率由水溶液与矿物油的体积比和剪切速率决定,反应速率由化学配方和固化温度决定。

    Carbon aerogel electrodes for direct energy conversion
    9.
    发明授权
    Carbon aerogel electrodes for direct energy conversion 失效
    碳气凝胶电极,用于直接能量转换

    公开(公告)号:US5601938A

    公开(公告)日:1997-02-11

    申请号:US183876

    申请日:1994-01-21

    IPC分类号: H01M4/92 H01M4/96 H01M8/08

    摘要: A direct energy conversion device, such as a fuel cell, using carbon aerogel electrodes, wherein the carbon aerogel is loaded with a noble catalyst, such as platinum or rhodium and soaked with phosphoric acid, for example. A separator is located between the electrodes, which are placed in a cylinder having plate current collectors positioned adjacent the electrodes and connected to a power supply, and a pair of gas manifolds, containing hydrogen and oxygen positioned adjacent the current collectors. Due to the high surface area and excellent electrical conductivity of carbon aerogels, the problems relative to high polarization resistance of carbon composite electrodes conventionally used in fuel cells are overcome.

    摘要翻译: 直接能量转换装置,例如使用碳气凝胶电极的燃料电池,其中碳气凝胶装载有贵金属催化剂,例如铂或铑,并用磷酸浸泡。 分离器位于电极之间,其被放置在具有邻近电极定位并且连接到电源的板集流器的气缸中,以及一对包含位于集流器附近的氢和氧的气体歧管。 由于碳气凝胶的高表面积和优异的导电性,克服了常规用于燃料电池中的碳复合电极的高极化电阻的问题。

    Method for forming a cell separator for use in bipolar-stack energy
storage devices
    10.
    发明授权
    Method for forming a cell separator for use in bipolar-stack energy storage devices 失效
    用于形成用于双极堆叠储能装置的电池隔板的方法

    公开(公告)号:US5336274A

    公开(公告)日:1994-08-09

    申请号:US90881

    申请日:1993-07-08

    摘要: An improved multi-cell electrochemical energy storage device, such as a battery, fuel cell, or double layer capacitor using a cell separator which allows cells to be stacked and interconnected with low electrical resistance and high reliability while maximizing packaging efficiency. By adding repeating cells, higher voltages can be obtained. The cell separator is formed by applying an organic adhesive on opposing surfaces of adjacent carbon electrodes or surfaces of aerogel electrodes of a pair of adjacent cells prior to or after pyrolysis thereof to form carbon aerogel electrodes. The cell separator is electronically conductive, but ionically isolating, preventing an electrolytic conduction path between adjacent cells in the stack.

    摘要翻译: 改进的多单元电化学能量存储装置,例如电池,燃料电池或使用电池隔板的双层电容器,其允许电池以低电阻和高可靠性堆叠和互连,同时最大限度地提高包装效率。 通过添加重复单元,可以获得更高的电压。 通过在热分解之前或之后,在相邻的碳电极或一对相邻电池的气凝胶电极的表面的相对表面上施加有机粘合剂来形成电池隔板,以形成碳气凝胶电极。 细胞分离器是电子导电的,但是离子隔离,防止堆叠中相邻细胞之间的电解传导路径。