公开(公告)号：US07056613B2

公开(公告)日：2006-06-06

申请号：US10431870

申请日：2003-05-07

Applicant: Lijun Bai ,  Greg A. Lloyd

Inventor： Lijun Bai ,  Greg A. Lloyd

IPC: H01M3/02

CPC classification number: H01M8/0232 ,  H01M4/8605 ,  H01M4/90 ,  H01M8/1007

Abstract: A fuel cell is described and which includes an ion exchange membrane; an electrode positioned in ion exchanging relation relative to the ion exchange membrane; a gas diffusion layer borne by the electrode and having an outwardly facing surface; a porous metal coating comprising one or more elements selected from the periodic table of elements and which has an atomic number of less than 75, and which is positioned at least in partial covering relation relative to the outwardly facing surface of the gas diffusion layer; and a current collector forcibly disposed in ohmic electrical contact with the porous metal coating.

公开(公告)号：US3888700A

公开(公告)日：1975-06-10

申请号：US77277568

申请日：1968-11-01

Applicant: ESB INC

Inventor： LARSEN DUANE M

IPC: H01M2/16 ,  H01M6/22 ,  H01M3/02

CPC classification number: H01M2/1653 ,  H01M6/22 ,  Y10T29/53135 ,  Y10T29/53139

Abstract: An absorbent separator for an electric battery which comprises an elastomeric resin binder material (e.g. vinyl acetate-ethylene copolymer) blended with a gelling agent (e.g. starch, flour) which absorbs the battery electrolyte and immobilizes it in contact with the anode surface. This absorbent separator swells as it absorbs the battery electrolyte which improves the conductivity and helps to avoid selective corrosion of the anode surface. The absorbent separator, which may be self-supporting, has sufficient strength for use with automatic battery manufacturing machinery. When used in conventional Le Clanche primary batteries, these absorbent separators hold the battery discharge product in place and thereby help to prevent battery leakage.

公开(公告)号：US3847676A

公开(公告)日：1974-11-12

申请号：US31710872

申请日：1972-12-21

Applicant: GRACE W R & CO

Inventor： PALMER N ,  SUGARMAN N ,  GRAMMER D

IPC: D04H3/16 ,  H01M2/14 ,  H01M2/16 ,  H01M3/02

CPC classification number: D04H3/16 ,  H01M2/14 ,  H01M2/16

Abstract: Battery separators and the like are produced from nonwoven mats of plastic fibers which fibers contain an internal surfactant that is soluble in the molten polymer but insoluble in the cooled polymer and tends to bloom under conditions of use. A second surfactant is coated on the exterior of the fiber. After preliminary formation the nonwoven mat is heated and then compressed to increase the effectiveness of the internal surfactant in cooperation with the coated on surfactant. The fibers may be formed from polypropylene resin that is treated at unusually high temperatures prior to extrusion and the extrudate attenuated, collected on a drum and compressed to form a preferred separator with small pores and high porosity.

Abstract translation: 电池分离器等由塑料纤维的非织造垫制成，该纤维含有可溶于熔融聚合物但不溶于冷却的聚合物中的内部表面活性剂，并且在使用条件下容易开花。 第二种表面活性剂涂覆在纤维的外部。 在初步形成之后，非织造毡被加热然后被压缩以增加与涂覆的表面活性剂配合的内部表面活性剂的有效性。 纤维可以由聚丙烯树脂形成，其在挤出之前在非常高的温度下处理并且挤出物减弱，收集在滚筒上并压缩以形成具有小孔和高孔隙率的优选隔板。

公开(公告)号：US3736185A

公开(公告)日：1973-05-29

申请号：US3736185D

申请日：1970-11-27

Applicant: MC DONNELL DOUGLAS CORP

Inventor： SMATKO J

IPC: H01M2/16 ,  H01M3/02 ,  H01M41/00

CPC classification number: H01M2/1646

Abstract: PRODUCTION OF INORGANIC POROUS SINTERED BATTERY SEPARATOR ESSENTIALLY ELIMINATING FORMATION OF GAS WHEN IN CONTACT WITH A ZINC ELECTRODE, AND PERMITTING LONG CYCLE LIFE OF A HIGH ENERGY DENSITY BATTERY SUCH AS A SILVER-ZINC BATTERY, PRODUCED ACCORDING TO ONE EMBODIMENT BYY INITIALLY FIRING A MIXTURE OF MAGNESIUM-BEARING MATERIAL, E.G., MGO, LEAD-BEARING MATERIAL, E.G., PBO, AND SILICA (SIO2), AT TEMPERATURE IN THE RANGE OF ABOUT 1,100 TO ABOUTT 1,550*C., TO PRODUCE A MAGNESIUM SILICATE-LEAD SILICATE COMPOSITION, GRANULATING AND COMPACTING SAID COMPOSITION INTO PLAQUES, AND SINTERING SAID COMPACTED PLAQUES AT TEMPERATURE RANGING FROM ABOUT 800 TO ABOUT 1,250*C., TO PRODUCE POROUS SINTERED SEPPARATOR MEMBERS, IN THE FORM OF A SINTERED COMPOSITION OR COMPOSITE OF MAGNESIUM SILICATE AND LEAD SILICATE, HAVING GOOD TRANSVERSE STRENGTH AND LOW RESISTIVITY.

公开(公告)号：US3725130A

公开(公告)日：1973-04-03

申请号：US3725130D

申请日：1971-04-12

Applicant: TUDOR AB

Inventor： ANDERSSON J ,  LINDBERGH K

IPC: H01M4/76 ,  H01M3/02

CPC classification number: H01M4/765 ,  Y10T29/10 ,  Y10T29/49108

Abstract: LEAD-ACID STORAGE BATTERY ELECTRODE OF THE TUBE PLATE TYPE HAVING A NOVEL SHEATH OF A GLASS FIBER FABRIC WHEREIN THE YARNS ARE HELD AGAINST SLIPPAGE BY ISLANDS OF A THERMOPLASTIC MATERIAL. THE SHEATH IS MADE BY PASSING A TUBE MADE OF GLASS FIBER YARNS OVER A MANDREL WHICH EXTENDS THROUGH A CHAMBER CONTAINING PULVERIZED PARTICLES OF PLASTIC MATERIAL. THE PARTICLES ARE BLOWN ON THE GLASS FIBER TUBE WHILE HEATED AND FORM SMALL ISLANDS OF PLASTIC MATERIAL WHEN COOLED WHICH IMPART THE NECESSARY ME-

CHANICAL STRENGTH TO THE SHEATH WITHOUT SUBSTANTIAL REDUCTION IN POROSITY.

公开(公告)号：US3702267A

公开(公告)日：1972-11-07

申请号：US3702267D

申请日：1970-06-15

Applicant: DU PONT

Inventor： GROT WALTER GUSTAV

IPC: C08K3/22 ,  H01M2/16 ,  H01M3/02

CPC classification number: H01M2/1653 ,  C08K3/22 ,  Y10S521/905 ,  C08L27/18

Abstract: POLYTETRAFLUOROETHYLENE IS PROVIDED CONTAINING FROM 20 TO 95% BY WEIGHT OF INORGANIC PARTICULATE SOLIDS WHICH ARE CHARACTERIZED BY A PARTICLE DIAMETER OF NO GREATER THAN 0.2 MICRON, BULK DENSITY NO GREATER THAN OF 0.25 GM./CM.3, AND A SPECIFIC SURFACE AREA OF AT LEAST 20 M.2/GM. THE PARTICULATE SOLIDS IMPART A HIGH DEGREE OF MICROPOROSITY AND WETTABILITY WHICH MAKES THE POLYMER USEFUL AS A FILTER OR AS AN ION PERMEABLE SEPARATOR IN ELECTROCHEMICAL CELLS.

公开(公告)号：US3890184A

公开(公告)日：1975-06-17

申请号：US40595873

申请日：1973-10-12

Applicant: EXXON RESEARCH ENGINEERING CO

Inventor： MORGAN WALTER A

IPC: H01M2/14 ,  H01M3/02

CPC classification number: H01M2/14

Abstract: Ribs are formed on a nonwoven mat to produce a battery separator. The ribs are formed by extruding a foamed polymer onto the nonwoven mat by extruding the foamed polymer through a multihole die as the nonwoven mat follows an arc passing over a mat backup plate. After the ribs have been extruded and the foamed polymer is still soft, the nonwoven mat with the extruded ribs may be passed through a fixed gap such as a pair of calendar rolls to produce a battery separator of uniform thickness.

Abstract translation: 肋形成在非织造垫上以产生电池隔膜。 这些肋是通过将泡沫聚合物挤压在非织造垫上而形成的，因为非织造垫通过垫子支撑板的弧线挤压发泡聚合物通过多孔模头。 在已经挤出肋并且发泡聚合物仍然柔软之后，具有挤出肋的非织造垫可以通过诸如一对压延辊的固定间隙，以产生均匀厚度的电池隔板。

公开(公告)号：US3861963A

公开(公告)日：1975-01-21

申请号：US15421871

申请日：1971-06-17

Applicant: MC DONNELL DOUGLAS CORP

Inventor： AFRANCE FRANK C ,  ROSA ALBERT G ,  HAAS RONALD J

IPC: H01M2/16 ,  H01M3/02

CPC classification number: H01M2/162

Abstract: Production of a separator, preferably in the form of a compartment, for insertion therein of a battery electrode, preferably by dip-coating a flexible porous substrate, e.g., potassium titanate paper or nylon, in a mixture preferably of a major portion of an inorganic or ceramic separator material, a minor portion of potassium titanate in short fiber form, and a minor portion of an organic polymer, e.g., polyphenylene oxide, dissolved in a suitable solvent such as chloroform. The flexible porous substrate is placed in the mixture, preferably maintained under vibration, and stirred; the substrate and applied coating are removed from the mixture, and the coating is dried to remove solvent and is cured at elevated temperature. The resulting porous separator, coated, filled or impregnated with the above mixture, has low resistivity, is smooth and uniform in thickness, and is flexible, and has high resistance to alkali and to elevated temperatures. Preferably the flexible porous substrate is first formed into a box or bag and then treated with the above mixture to form a separator. An electrode, such as a zinc electrode, is inserted in the bag either before or after coating and impregnation. Alternatively, a film or sheet of the substrate is treated with the above mixture to form a flexible separator, and the resulting flexible separator is then formed into a boxlike configuration for receiving an electrode, or is wrapped around an electrode or electrodes.

Abstract translation: 生产分离器，优选为隔室形式，用于在其中插入电池电极，优选通过将柔性多孔基材（例如钛酸钾纸或尼龙）浸渍在优选主要部分无机物的混合物中 或陶瓷分离器材料，短纤维形式的少部分钛酸钾和少部分溶解在合适溶剂如氯仿中的有机聚合物，例如聚苯醚。 将柔性多孔基材放置在混合物中，优选保持振动并搅拌; 从混合物中除去基材和涂覆的涂层，并将涂层干燥以除去溶剂并在升高的温度下固化。 用上述混合物涂布，填充或浸渍的所得多孔隔膜具有低电阻率，其厚度平滑且均匀，并且是柔性的，并且具有高的抗碱性和高温性。 优选地，柔性多孔基材首先被形成为箱或袋，然后用上述混合物处理以形成隔板。 在涂布和浸渍之前或之后，将诸如锌电极的电极插入袋中。 或者，用上述混合物处理衬底的膜或片以形成柔性隔板，然后将所得到的柔性隔板形成为用于接收电极的盒状构造，或者缠绕在电极或电极周围。

公开(公告)号：US3695937A

公开(公告)日：1972-10-03

申请号：US3695937D

申请日：1970-03-09

Applicant: HUGHES AIRCRAFT CO

Inventor： ROWLETTE JOHN J

IPC: H01M2/16 ,  H01M3/02

CPC classification number: H01M2/162

Abstract: IMPROVED BATTERY SEPARATOR OF HYDROPHOBIC SYNTHETIC FIBERS HAVING A BLACK MANGANESE DIOXIDE HYDROPHILIC COATING, METHOD OF PREFABRICATION AND IMPROVED BATTERIES PROVIDED THEREWITH.

公开(公告)号：US3653966A

公开(公告)日：1972-04-04

申请号：US3653966D

申请日：1969-05-08

Applicant: MALLORY & CO INC P R

Inventor： HILL KENNETH R

IPC: H01M4/60 ,  H01M6/16 ,  H01M17/02 ,  H01M3/02

CPC classification number: H01M4/60 ,  H01M6/16

Abstract: A high energy cell employing a light metal anode and a cathode, the active material of which is a semi-conductive organic charge transfer complex. In assembly of the cell direct contact of the anode and cathode promotes formation in situ on the anode of a high resistance ionically conductive film which functions as a sefl-adjusting cell separator. Other features of the invention appear in the specification.

Abstract translation: 使用轻金属阳极和阴极的高能量电池，其活性材料是半导电有机电荷转移络合物。 在电池的组装中，阳极和阴极的直接接触促进了在电阻上形成高电阻离子导电膜的阳极上，其起到sefl调节电池隔板的作用。 本发明的其它特征出现在说明书中。