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    • 61. 发明公开
    • Seals, and air depolarized electrochemical cells made therewith
    • 密封件和含有这些空气囊
    • EP0940870A2
    • 1999-09-08
    • EP99301729.2
    • 1999-03-08
    • RAYOVAC CORPORATION
    • Dopp, Robert B.Moy, Gregory ScottPassaniti, Joseph LynnOltman, John EdwardWard, Michael Andrew
    • H01M12/06H01M4/86H01M2/08
    • H01M4/8803H01M2/022H01M2/0452H01M2/08H01M2/30H01M4/04H01M4/70H01M4/742H01M4/8605H01M12/06H01M2004/8689
    • The invention relates to seals, and electrochemical cells made therewith. An elongate, generally tubular, air depolarized electrochemical cell (10) comprising a cathode (14), including an air cathode assembly (26), extending about the tubular circumference, and along the tubular length, of the cell (10), an anode (12), a separator (16) between the anode (12) and the cathode (14), electrolyte, a top closure member (177, 200), and a bottom closure member (114, 202). The cathode assembly (26) is fixedly held, by a friction fit, in a slot (116) at the bottom of the cell. The slot can be developed, for example, by inner (110) and outer (114) walls of a cathode can (28), by inner (226) and outer (224) walls of a bottom closure member (202), or by an outer wall (114) of a cathode can (28) and an opposing outer wall of a plug (128) on the interior of the cell. Preferably, bottom closure structure of the cell (10) and receives a bottom edge portion (44) of the cathode current collector (32), and makes electrical contact with the bottom edge portion (44), preferably at an inner surface (60) of the cathode current collector. A diffusion member (36) of the cathode assembly (26) is preferably compressed as a seal, at the bottom of the cell (10), between an outer side wall (39) of the cell and the remainder of the cathode assembly (26). The diffusion member (36) is also used at least as an assist in sealing the cell (10) against electrolyte leakage from the anode cavity (137) and past the cathode assembly (26).
      A grommet (18) closes the top of the cell (10). A seal (36) can extend upwardly into a slot (174) between the grommet (18) and a top closure member (177) such as at the top of a cathode can (28), or a separate top closure member (200). Cathode assembly (26) and separator (16) can extend into the slot (174). The seal is between the grommet (18) and cathode assembly (26), or between grommet (18) and separator (16), or both. The seal can extend upwardly into the slot (174) from an outer surface of the cathode assembly (26), can extend about respective upper edges of the cathode current collector (57), catalyst, and separator (16), and downwardly toward, preferably against or along the inner surface of, the separator (16). The top closure member (200) can be crimped against the grommet (18) at the slot (174), with the cathode assembly (26), and optionally the separator (16), in the slot (174) between the grommet (18) and the top closure (200), thus to provide a liquid-tight crimp seal. The top closure (200) can be crimped first against the grommet (18) at the slot (174), and further crimped against the grommet (18) at a second locus (178) displaced longitudinally from the first crimp. Composition of the seal comprises a microporous polymer (36), preferably polytetrafluoroethylene. Preferred embodiments comprise at least two, preferably at least three, layers of air permeable microporous sheet material, useful for diffusion of air therethrough to the cathode reaction surface (63). The layers are wrapped continuously and without intervening end, to form an outer surface of the cathode assembly (26). Another expression of the invention is a cathode assembly (26), or cathode-separator combination, for use in an elongate air depolarized cell (10). The air permeable sheet material (36), as wrapped about the tubular cathode assembly, is compressed so as to have a compressed thickness less than the uncompressed thickness.
    • 62. 发明公开
    • Air depolarized electrochemical cells
    • Luftsauerstoffzellen
    • EP0940869A2
    • 1999-09-08
    • EP99301700.3
    • 1999-03-08
    • RAYOVAC CORPORATION
    • Moy, Gregory, ScottOltman, John EdwardDopp, Robert B.Passaniti, Joseph LynnWard, Michael Andrew
    • H01M12/06H01M2/04H01M2/08
    • H01M4/8803H01M2/022H01M2/0452H01M2/08H01M2/30H01M4/04H01M4/70H01M4/742H01M4/8605H01M12/06H01M2004/8689
    • An elongate, generally tubular, air depolarized electrochemical cell (10) comprising a cathode (14), including an air cathode assembly (26), extending about the tubular circumference, and along the tubular length, of the cell (10), an anode (12), a separator (16) between the anode (12) and the cathode (14), electrolyte, a top closure member (177, 200), and a bottom closure member (114, 202). The cathode assembly (26) is fixedly held, by a friction fit, in a slot (116) at the bottom of the cell. The slot can be developed, for example, by inner (110) and outer (114) walls of a cathode can (28), by inner (226) and outer (224) walls of a bottom closure member (202), or by an outer wall (114) of a cathode can (28) and an opposing outer wall of a plug (128) on the interior of the cell. Preferably, bottom closure structure of the cell (10) and receives a bottom edge portion (44) of the cathode current collector (32), and makes electrical contact with the bottom edge portion (44), preferably at an inner surface (60) of the cathode current collector. A diffusion member (36) of the cathode assembly (26) is preferably compressed as a seal, at the bottom of the cell (10), between an outer side wall (39) of the cell and the remainder of the cathode assembly (26). The diffusion member (36) is also used at least as an assist in sealing the cell (10) against electrolyte leakage from the anode cavity (137) and past the cathode assembly (26). An embodiment may provide a stop ledge (106) in grommet (18j) facing a stop groove (102) in a cathode can (28). The cathode assembly (26) can extend into a slot (174) at an outer edge of the grommet (18). A top grommet 204 can have an upwardly extending leg (210A) overlain by a top closure member (206). The air diffusion member (36) may control the rate of entry of air to the reaction surface, depending on density of the air diffusion member (36), whereby the air diffusion member (36) controls the limiting current of the cell (10). The air cell (10) can be free from adhesive bonding the separator (16) to the cathode assembly (26). The bottom of the cathode current collector (32) may be in a bottom slot (116), in a path of flow of current between a reaction surface and a positive electrode terminal (30). A method of fabricating cells can include crimping a top washer (206) and an outer leg (210C) of a top grommet (18) at the same time, including closing a slot (211).
    • 一种细长的,通常为管状的空气去极化电化学电池(10),包括阴极(14),包括空气阴极组件(26),围绕电池(10)的管状周边延伸,并且沿着管状长度延伸,阳极 (12),阳极(12)和阴极(14)之间的隔板(16),电解质,顶部封闭构件(177,200)和底部闭合构件(114,202)。 阴极组件(26)通过摩擦配合固定地保持在电池底部的槽(116)中。 狭槽可以例如通过阴极罐(28)的内部(110)和外部(114)壁,底部封闭构件(202)的内部(226)和外部(224)壁,或者通过 阴极罐(28)的外壁(114)和电池内部的插塞(128)的相对的外壁。 优选地,电池(10)的底部闭合结构并且接收阴极集电器(32)的底部边缘部分(44),并且优选地在内表面(60)处与底部边缘部分(44)电接触, 的阴极集电器。 阴极组件(26)的扩散构件(36)优选作为密封件在电池(10)的底部在电池的外侧壁(39)和阴极组件(26)的其余部分之间被压缩 )。 扩散构件(36)至少还用作辅助密封电池(10)以抵抗电解质从阳极腔(137)泄漏并经过阴极组件(26)。 一个实施例可以提供一个位于护环(18j)中的面向阴极罐(28)中的止动槽(102)的止动凸缘(106)。 阴极组件(26)可以在护环(18)的外边缘处延伸到狭槽(174)中。 顶部索环204可以具有由顶部封闭构件(206)覆盖的向上延伸的腿部(210A)。 空气扩散构件(36)可以根据空气扩散构件(36)的密度来控制空气进入反应面的速度,由此空气扩散构件(36)控制电池(10)的极限电流, 。 空气电池(10)可以没有将分离器(16)粘合到阴极组件(26)上。 在反应表面和正极端子(30)之间的电流流动路径中,阴极集电器(32)的底部可以在底部槽(116)中。 制造单元的方法可以包括同时压接顶部垫圈(18)的顶部垫圈(206)和外部支脚(210C),包括关闭狭槽(211)。
    • 63. 发明公开
    • Package
    • EP0844193A1
    • 1998-05-27
    • EP96308495.9
    • 1996-11-25
    • RAYOVAC CORPORATION
    • Williams, StephenMudde, KeesHeslop, JohnGottwald, MilenaWoolf, Adam
    • B65D75/36B65D75/32
    • B65D75/366B65D75/32B65D75/322B65D75/5833B65D2575/365B65D2575/367B65D2575/368B65D2585/88
    • A package (10) comprises a blister member (12) bonded to a substrate member (16), the blister member (12) having a product-holding cavity (18) and a sidewall, and is secured to the front surface (14) of the substrate member by a bond line (17) extending generally about the product-holding cavity. A tear strip (22) is defined in one of the blister member (12) and the substrate member (14) and comprises an opening tab (24) having a distal edge (28) disposed outwardly of the side wall at or adjacent a free edge (30) of the package, and lines of weakness (26A, 26B) extending from the distal edge area inwardly of the package. The tear strip (22) facilitates the creation of an opening in the package (10) to provide access to the product-holding cavity (18), the tear strip being devoid of fixed bonding to the other of the substrate member and the blister member to allow for easy activation of the tear strip to open the package. The package can be configured to enable reclosing of the package to thereby protect the product, and/or to retain intact the location of the product with respect to the blister member (12) and the substrate member (16).
    • 包装(10)包括结合到基底构件(16)的泡罩构件(12),泡罩构件(12)具有产品保持腔(18)和侧壁,并且固定到前表面(14) 通过大体围绕产品容纳腔延伸的结合线(17)与衬底部件的表面接触。 在泡罩构件(12)和基底构件(14)中的一个中限定了撕条(22),并且包括具有远侧边缘(28)的开口突片(24),所述远侧边缘(28) 包装的边缘(30)以及从包装内部的远边缘区域延伸的弱化线(26A,26B)。 撕条(22)便于在包装(10)中形成开口以提供通向产品容纳腔(18)的入口,撕条没有与基底构件和泡形构件中的另一个的固定结合 以允许容易地启动撕条以打开包装。 该包装可被构造成能够重新封闭包装,从而保护产品,和/或保持产品相对于泡罩构件(12)和基底构件(16)的完整位置。
    • 64. 发明公开
    • Circuit and method for detecting and indicating the state of charge of a cell or battery
    • 电路和方法,用于检测和指示充电电池或电池单元的状态
    • EP0736951A3
    • 1997-10-29
    • EP96302399.9
    • 1996-04-03
    • RAYOVAC CORPORATION
    • Sengupta, Upal
    • H02J7/10
    • H02J7/0078Y10S320/21
    • A circuit and method for detecting and indicating the state of charge of an electrochemical cell or battery are disclosed. The invention finds particular application in the field of battery chargers for alkaline manganese dioxide cells, but may also be used in other types of chargers and electrochemical cells or batteries. In one preferred feature of the invention, a circuit low-pass filters or time-averages a charge enable control or transistor base drive signal, and provides the filtered or averaged signal as a first input to a comparator. The second input to the comparator is a predetermined reference voltage. When the voltage of the low-pass filtered or time-averaged signal becomes less than the reference voltage, the output of the comparator changes state. The change in state indicates that the cell has attained a full state of charge. Microprocessor means for accomplishing the same state of charge detection function are also disclosed.
    • 一种用于检测和指示充电的电化学电池或电池组的状态的电路和方法是游离缺失光盘。 本发明发现了在电池充电器用于碱性二氧化锰电池的领域特定的应用,但也可以因此在其他类型的充电器和电化学电池或电池组来使用。 在本发明的一个优选特征,一个电路的低通滤波器或时间平均的充电使能控制或晶体管基极驱动信号,并提供经滤波的或平均信号作为第一输入到比较器。 第二输入到比较器是一个预定的基准电压。 当过滤或时间平均的信号的低通的电压变得小于该参考电压时,比较器的输出改变状态。 状态的改变表明DASS死细胞已达到完全充电状态。 因此微处理器装置,用于完成充电检测功能的相同的状态是游离缺失盘。
    • 65. 发明公开
    • Electrochemical cells and current collectors therefor
    • Elektrochemische Zellen und Stromkollektorendafür
    • EP0785585A1
    • 1997-07-23
    • EP96308600.4
    • 1996-11-28
    • RAYOVAC CORPORATION
    • Passaniti, Joseph L.Kenyon, Kenneth H.Davidson, Gregory J.
    • H01M2/04H01M2/12
    • H01M2/0421H01M2/1241
    • Current collector assemblies (10) and electrochemical cells made with them are disclosed. The current collector has a stiff, rigid washer (20), repositioned closerly to adjacent to a bottom plate (24) at its central region and the washer maintains the traditional function of controlling the positioning of a seal body (14) of the current collector assembly (10). Increasing stiffness, rigidity, and the repositioning of the washer is accomplished by structurally sculpturing the cross-section of the washer, hardening the temper of the washer, and providing a plateau (88) adjacent the center of the bottom plate (24). Washer vent holes in the bottom plate (24) are located away from the central region, which is the most vulnerable part of the bottom plate. The washer (20) provides both support to the seal body (14) against outwardly-directed internal pressures within the cell and support to the bottom plate (24) against inwardly directed impact forces from outside the cell. The current collector assembly (10) permits safe, effective venting of pressure in the cell; reduces early activation of venting structures in the current collector assembly; contains fewer piece parts than known structurally-robust current collectors; is easy to make and assemble, and provides superior tolerance to outside impact forces.
    • 公开了集电器组件(10)和用它们制成的电化学电池。 集流器具有刚性刚性的垫圈(20),其在其中心区域处更靠近底板(24)定位,并且垫圈保持控制集电器的密封体(14)的定位的传统功能 总成(10)。 通过结构地雕刻垫圈的横截面,硬化洗衣机的回火并且提供邻近底板(24)的中心的平台(88)来​​实现垫圈的增加刚度,刚性和重新定位。 底板(24)中的垫圈通气孔位于远离底板最脆弱部分的中心区域。 垫圈(20)为密封体(14)提供两个支撑,以抵抗电池内的向外导向的内部压力,并抵抗来自电池外部的内向冲击力而向底板(24)提供支撑。 集电器组件(10)允许安全,有效地排出电池中的压力; 减少集电器组件中通风结构的早期激活; 包含比已知的结构稳健集电器更少的零件; 易于制造和组装,并且对外部冲击力提供优异的耐受性。
    • 66. 发明公开
    • Primary alkaline electrochemical cells and batteries
    • Alkalische,elektrochemischePrimärzellenund Batterien。
    • EP0345465A1
    • 1989-12-13
    • EP89108009.5
    • 1989-05-03
    • RAYOVAC CORPORATION
    • Bergum, Bernard C.Dunham, Thomas T.Spellman, Patrick J.
    • H01M2/16H01M6/06
    • H01M2/1666H01M6/06H01M2300/0014
    • A primary alkaline electrochemical cell containing cathodic materials insoluble in alkaline electrolyte which exhibits increased cell performance at low temperatures, yet does not exacerbate handling and processing problems during cell construction comprises a powdered metallic anode (e.g. zinc) having a aqueous alkaline electrolyte dispersed therein, a cathode (e.g. essentially of manganese dioxide) which is insoluble in said aqueous alkaline electrolyte, and a separator placed therebetween, wherein the separator forms an alkaline resistant non-porous barrier between said anode and said cathode. The separator may comprise two lyers of an absorbent porous separator material and a barrier type membrane placed therebetween, which preferably has a pore size of approximately 2,5 to 4,0 nm and allows for the transfer of electrolytic ions. The absorbent porous separator material absorbs at least 180 % of its weight of said alkaline electrolyte.
    • 包含不溶于碱性电解质的阴极材料的初级碱性电化学电池,其在低温下表现出增加的电池性能,但不会加剧电池构造期间的处理和加工问题,包括其中分散有碱性电解液的粉末金属阳极(例如锌), 不溶于所述含水碱性电解质的阴极(例如基本上由二氧化锰制成)以及置于其间的隔膜,其中所述隔膜在所述阳极和所述阴极之间形成耐碱性无孔屏障。 分离器可以包括两个分离器的吸收性多孔分离器材料和位于它们之间的阻挡型膜,其优选具有约2.5至4.0nm的孔径并且允许电解离子的转移。 吸收性多孔分离器材料吸收其至少180%的所述碱性电解质的重量。