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    Electrochemical cell
    1.
    发明授权
    Electrochemical cell 失效
    电化学电池

    公开(公告)号：US4937154A

    公开(公告)日：1990-06-26

    申请号：US271793

    申请日：1988-11-16

    申请人： Peter R. Moses ,  Fred J. Berkowitz ,  Alwyn H. Taylor

    发明人： Peter R. Moses ,  Fred J. Berkowitz ,  Alwyn H. Taylor

    IPC分类号： H01M10/38 ,  H01M6/10 ,  H01M6/50 ,  H01M10/40

    CPC分类号： H01M6/10 ,  H01M2200/00 ,  H01M2200/30

    摘要： This invention relates to an electrochemical cell having spirally wound electrodes and an electrolyte which enhances plating of the anode metal during voltage reversal. The safety of such cells is improved by concentrating the current, during voltage reversal, between an outer segment of the anode and a metal sheet connected to the cathode whereby anode metal plates only onto the metal sheet. Thus, the hazardous condition of plating anode metal onto the cathode is avoided.

    摘要翻译： 本发明涉及具有螺旋缠绕电极的电化学电池和在电压反转期间增强阳极金属电镀的电解质。 这种电池的安全性通过将电流在电压反转期间集中在阳极的外部部分和连接到阴极的金属片之间而被提高，由此阳极金属板仅在金属片上。 因此，避免了将阳极金属镀在阴极上的危险状况。

    Method of preparing cathode containing Iron disulfide for a lithium cell
    8.
    发明申请
    Method of preparing cathode containing Iron disulfide for a lithium cell 有权
    制备锂电池用二硫化铁的阴极的方法

    公开(公告)号：US20090291366A1

    公开(公告)日：2009-11-26

    申请号：US12154572

    申请日：2008-05-23

    申请人： Maya Stevanovic ,  Michael Pozin ,  Yelena Kouznetsova ,  Steven J. Specht ,  Fred J. Berkowitz

    发明人： Maya Stevanovic ,  Michael Pozin ,  Yelena Kouznetsova ,  Steven J. Specht ,  Fred J. Berkowitz

    IPC分类号： H01M4/40 ,  H01M4/08

    CPC分类号： H01M4/1397 ,  H01M4/136 ,  H01M4/248 ,  H01M4/5815 ,  H01M4/622 ,  H01M6/16 ,  Y02E60/122 ,  Y02P70/54

    摘要： A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS2) or a mixture of iron disulfide (FeS2) and iron sulfide (FeS) and conductive carbon particles. A cathode slurry is prepared comprising the FeS2 or FeS2 plus FeS powder, conductive carbon, binder, and a solvent. The binder is preferably a styrene-ethylene/butylene-styrene (SEBS) block copolymer. There is an advantage discovered in utilizing a hydronaphthalene solvent to form the cathode slurry. The preferred solvent is 1,2,3,4-tetrahydronaphthalene or decahydronaphthalene and mixtures thereof. The slurry mixture is coated onto a conductive substrate and the solvent evaporated leaving a dry cathode coating on the substrate. Higher drying temperature may be used resulting in a dry cathode coating which resists cracking. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.

    摘要翻译： 具有包含锂或锂合金的阳极和包含二硫化铁（FeS 2）或二硫化铁（FeS 2）和硫化铁（FeS）和导电碳颗粒的混合物的阴极的初级电池。 制备包含FeS 2或FeS 2加FeS粉末，导电碳，粘合剂和溶剂的阴极浆料。 粘合剂优选为苯乙烯 - 乙烯/丁烯 - 苯乙烯（SEBS）嵌段共聚物。 在利用氢化萘溶剂形成阴极浆料时发现了一个优点。 优选的溶剂是1,2,3,4-四氢化萘或十氢萘及其混合物。 将浆料混合物涂覆到导电基材上，蒸发溶剂，在基材上留下干燥的阴极涂层。 可以使用更高的干燥温度，导致干燥的阴极涂层，其耐龟裂。 阳极和阴极可以用分离器螺旋卷绕并插入电池壳体中，然后加入电解质。