公开(公告)号：EP0098680B1

公开(公告)日：1986-10-15

申请号：EP83301590.2

申请日：1983-03-22

申请人： YARDNEY ELECTRIC CORPORATION

发明人： Chireau, Roland F.

IPC分类号： H01M2/16

CPC分类号： H01M2/1653 ,  H01M2300/0014

公开(公告)号：EP0098675B1

公开(公告)日：1986-08-20

申请号：EP83300892.3

申请日：1983-02-21

申请人： YARDNEY ELECTRIC CORPORATION

发明人： Chireau, Roland F.

IPC分类号： H01M2/16

CPC分类号： H01M2/1653 ,  H01M2300/0014

公开(公告)号：EP0114484A3

公开(公告)日：1985-07-31

申请号：EP83307646

申请日：1983-12-15

申请人： YARDNEY ELECTRIC CORPORATION

发明人： Puglisi, Vincent J.

IPC分类号： H01M10/34 ,  H01M04/86

CPC分类号： H01M4/86 ,  H01M10/345

摘要： An improved rechargeable lead-hydrogen electrochemical cell is provided which comprises a cell stack secured to a retainer and disposed within a pressure vessel containing hydrogen gas. The stack includes a positive electrode comprising lead oxide, a pair of gas-porous negative electrodes containing a catalyst, a pair of separators and a pair of gas screens. The stack components are saturated with sulfuric acid electrolyte. Each of the negative electrodes has a separator disposed on one side thereof and a gas screen disposed on the opposite side thereof. The pressure vessel contains a gas inlet, and electrical leads connect to, respectively, the positive and negative electrodes and exit the pressure vessel. In the charged form, the cell reactants exist as lead oxide and hydrogen gas. When the cell is discharged, the lead oxide is reduced to lead sulfate and the hydrogen gas is oxidized at a catalytic surface to hydrogen ion. The cell has a lower cost with fewer technical problems, has a higher specific energy density and has a superior performance, relative to conventional metal hydrogen cells.

公开(公告)号：EP0098675A1

公开(公告)日：1984-01-18

申请号：EP83300892.3

申请日：1983-02-21

申请人： YARDNEY ELECTRIC CORPORATION

发明人： Chireau, Roland F.

IPC分类号： H01M2/16

CPC分类号： H01M2/1653 ,  H01M2300/0014

摘要： Method of fabricating a titanium and silver c,omplex-impregnated cellulosic separator for electrochemical cells involves impregnating a sheet of regenerated cellulose at elevated temperature in an aqueous environment simultaneously with two different selected reagents, one containing silver and the other titanium. By the impregnation, silver and titanium are thus separately but simultaneously introduced into the cellulose to form a silver-titanium complex therewith, improving the oxidation resistance of the cellulose when the cellulose is used as a separator in an electrochemical cell. The sheet also exhibits improved resistance to the penetration of silver when incorporated into an electrochemical cell having silver as one of the electrodes, zinc as the other electrode and an alkali hydroxide as the electrolyte.

摘要翻译： 制造用于电化学电池的钛和银络合物浸渍的纤维素分离器的方法包括在两个不同的选择的试剂（含有银和另一个钛）的同时，在水性环境中在升高的温度下浸渍一片再生纤维素。 通过浸渍，银和钛因此分开但同时引入纤维素以形成银 - 钛络合物，当纤维素用作电化学电池中的隔膜时，提高纤维素的抗氧化性。 当结合到具有作为电极之一的银，作为另一个电极的锌和作为电解质的碱性氢氧化物的电化学电池中时，该片材还显示出对银的穿透性的改善的抗性。

公开(公告)号：EP0028922A2

公开(公告)日：1981-05-20

申请号：EP80303967.6

申请日：1980-11-06

申请人： YARDNEY ELECTRIC CORPORATION

发明人： Cercone, Ronald J. ,  Kuklinski, Jaroslaw

IPC分类号： H01M4/96

CPC分类号： H01M4/96

摘要： The electrode is self-supporting, inexpensive and is of the throwaway or non-rechargeable type utilizable in metal-air cells and batteries. It comprises a readily corrodible, inexpensive current collector, preferably of iron or steel or copper, and an electrochemically active layer. The current collector has a hydrophobic coating, preferably of polytetrafluoroethylene or the like, to at least partially protect it from corrosion. The electrochemically active layer is secured to the current collector through the hydrophobic coating so as to form therewith a self-supporting electrode. This layer comprises particulate carbon catalyst with a hydrophobic binder compatible with the hydrophobic coating on the collector and fused thereto and present in an amount sufficient to bind the carbon particles into a coherent layer. The binder aids the coating in protecting the collector. The use of expensive, separately generated, thin hydrophobic films placed into the structure during its formation is totally obviated so that a lower cost is achieved while still providing an electrode having suitable electrochemical activity.

摘要翻译： 电极是自支撑的，便宜的，并且是可用于金属空气电池和电池中的一次性或不可再充电的类型。 它包括容易腐蚀的，廉价的集电器，优选铁或钢或铜，以及电化学活性层。 集电器具有疏水涂层，优选聚四氟乙烯等，以至少部分地防止其腐蚀。 电化学活性层通过疏水性涂层固定在集电体上，以便与其形成自支撑电极。 该层包括具有疏水性粘合剂的颗粒状碳催化剂，疏水性粘合剂与收集器上的疏水性涂层相容并且与其融合并以足以将碳颗粒结合成粘结层的量存在。 粘合剂有助于涂层保护收集器。 完全消除了在其形成期间放置到结构中的昂贵的，单独产生的薄疏水膜的使用，从而在仍然提供具有合适的电化学活性的电极的同时实现更低的成本。

公开(公告)号：EP0098680A1

公开(公告)日：1984-01-18

申请号：EP83301590.2

申请日：1983-03-22

申请人： YARDNEY ELECTRIC CORPORATION

发明人： Chireau, Roland F.

IPC分类号： H01M2/16

CPC分类号： H01M2/1653 ,  H01M2300/0014

摘要： Method of fabricating a titanium and silver complex-impregnated cellulosic separator for electrochemical cells involves impregnating a sheet of regenerated cellulose at elevated temperature in an aqueous environment sequentially with two different selected reagents. By the impregnations silver and titanium are separately introduced into the cellulose to improve the oxidation resistance of the cellulose when the cellulose is used as a separator in an electrochemical cell. In one embodiment, the cellulose is impregnated with aqueous silver nitrate solution at about 70-80°C for about 30-60 minutes until the silver content of the cellulose reaches a level of about 1-2 weigth %. The silverized cellophane is then impregnated with an aqueous solution of titanium sulfur oxide at about the same temperature and for about the same length of time. In another ambodiment, the titaniumcontaining reagent is first utilized and thereafter the silverizing reagent. After the impregnations the sheet which has been silverized and titanized is washed with water and dried. The sheet exhibits improved resistance to penetration of silver when incorporated into an electrochemical cell having silver as one of the electrodes, zinc as the other electrode and an alkali hydroxide as the electrolyte.

摘要翻译： 制造用于电化学电池的钛和银配合物浸渍的纤维素分隔物的方法包括在高温下在含水环境中依次用两种不同的选择的试剂浸渍再生纤维素片。 通过浸渍，当将纤维素用作电化学电池中的隔板时，将银和钛分别引入纤维素中以改善纤维素的抗氧化性。 在一个实施方案中，纤维素在约70-80℃下用硝酸银水溶液浸渍约30-60分钟，直至纤维素的银含量达到约1-2重量％的水平。 然后在大约相同的温度和大约相同的时间长度下，用硫氧化钛的水溶液浸渍硅化的玻璃纸。 在另一个实施例中，首先使用含钛试剂，然后使用该硅化剂。 在浸渍之后，将经过了硅化和钛化的片材用水洗并干燥。 当加入到以银作为电极之一，作为另一电极的锌和作为电解质的碱金属氢氧化物的电化学电池中时，该片材表现出提高的银渗透性。

公开(公告)号：EP0032291A1

公开(公告)日：1981-07-22

申请号：EP80303966.8

申请日：1980-11-06

申请人： YARDNEY ELECTRIC CORPORATION

发明人： Puglisi, Vincent J. ,  Carpenter, Benjamin

IPC分类号： H01M4/80

CPC分类号： H01M4/80

摘要： The present invention is an improvement in the manufacture of sintered nickel plaque electrode material by a method which comprises blending together, either in the dry or wet state, nickel metal powder and one or more binders, then coating or doctoring the resulting blend on a current collector, such as an iron or nickel grid, and sintering the composite to reduce the blend to a porous nickel plaque adhering strongly to the current collector. The improvement comprises adding a selected pore-forming material to the blend before coating or doctoring the blend onto the current collector. The pore former is a material that is selected from the group consisting of nickel oxide, nickel carbonate, nickel hydroxide, nickel oxalate and mixtures thereof, with the first three named materials being preferred. The most preferred species is nickel oxide.
The pore former can be added to the blend in any suitable concentration, for example 1 percent or more, with concentrations as high as 30 or 40 weight percent being effective to increase the porosity of the finished plaque material substantially over that of nickel plaque formed without using the pore former. The pore former is converted during the sintering operation to pure nickel but in the process results in the formation of the desired increased concentration of voids in the plaque. The pore formers utilized in accordance with the improvements of the present method are inexpensive, read-I ily available and highly effective.

摘要翻译： 本发明是通过一种方法改进制造烧结镍斑块电极材料的方法，该方法包括在干或湿状态下将镍金属粉末和一种或多种粘合剂混合在一起，然后以目前的方式涂覆或刮除所得共混物 收集器，例如铁或镍格栅，并烧结复合材料以将共混物减少到与集电器强烈粘合的多孔镍斑块。 改进之处在于在将共混物涂布或刮涂到集电器上之前，向所述共混物中加入选定的成孔材料。 成孔剂是选自氧化镍，碳酸镍，氢氧化镍，草酸镍及其混合物的材料，前三种命名材料是优选的。 最优选的是氧化镍。 可以将成孔剂以任何合适的浓度加入到共混物中，例如1％或更多，浓度高达30或40％（重量百分比）有效地增加成品斑块材料的孔隙率，基本上高于不含 使用成孔剂。 造孔剂在烧结操作期间被转化为纯镍，但是在该过程中导致在斑块中形成期望的增加的空隙浓度。 根据本方法的改进使用的成孔剂是便宜的，容易获得的和高效的。

公开(公告)号：EP0028922A3

公开(公告)日：1981-05-27

申请号：EP80303967

申请日：1980-11-06

申请人： YARDNEY ELECTRIC CORPORATION

发明人： Cercone, Ronald J. ,  Kuklinski, Jaroslaw

IPC分类号： H01M04/96

CPC分类号： H01M4/96

摘要： The electrode is self-supporting, inexpensive and is of the throwaway or non-rechargeable type utilizable in metal-air cells and batteries. It comprises a readily corrodible, inexpensive current collector, preferably of iron or steel or copper, and an electrochemically active layer. The current collector has a hydrophobic coating, preferably of polytetrafluoroethylene or the like, to at least partially protect it from corrosion. The electrochemically active layer is secured to the current collector through the hydrophobic coating so as to form therewith a self-supporting electrode. This layer comprises particulate carbon catalyst with a hydrophobic binder compatible with the hydrophobic coating on the collector and fused thereto and present in an amount sufficient to bind the carbon particles into a coherent layer. The binder aids the coating in protecting the collector. The use of expensive, separately generated, thin hydrophobic films placed into the structure during its formation is totally obviated so that a lower cost is achieved while still providing an electrode having suitable electrochemical activity.

摘要翻译： 电极是自支撑的，便宜的，并且是可用于金属空气电池和电池中的一次性或不可再充电的类型。 它包括容易腐蚀的，廉价的集电器，优选铁或钢或铜，以及电化学活性层。 集电器具有疏水涂层，优选聚四氟乙烯等，以至少部分地防止其腐蚀。 电化学活性层通过疏水性涂层固定在集电体上，以便与其形成自支撑电极。 该层包括具有疏水性粘合剂的颗粒状碳催化剂，疏水性粘合剂与收集器上的疏水性涂层相容并且与其融合并以足以将碳颗粒结合成粘结层的量存在。 粘合剂有助于涂层保护收集器。 完全消除了在其形成期间放置到结构中的昂贵的，单独产生的薄疏水膜的使用，从而在仍然提供具有合适的电化学活性的电极的同时实现更低的成本。