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1.发明授权
公开(公告)号：US4508797A
公开(公告)日：1985-04-02
申请号：US517473
申请日：1983-07-26
摘要： A passthrough seal is disclosed for electrically isolating the terminal in a lithium/metal sulfide cell from the structural cell housing. The seal has spaced upper and lower insulator rings fitted snuggly between the terminal and an annularly disposed upstanding wall, and outwardly of a powdered insulator also confined between the upstanding wall and terminal. The adjacent surfaces of the upper insulator ring and the respective upstanding wall and terminal are conically tapered, diverging in the axial direction away from the cell interior, and a sealing ring is located between each pair of the adjacent surfaces. The components are sized so that upon appropriate movement of the upper insulator ring toward the lower insulator ring the powdered insulator and sealing rings are each compressed to a high degree. This compacts the powdered insulator thereby rendering the same highly impervious and moreover fuses the sealing rings to and between the adjacent surfaces. The upper and lower insulator rings might be formed of beryllium oxide and/or alumina, the powdered insulator might be formed of boron nitride, and the sealing rings might be formed of aluminum.
摘要翻译： 公开了一种用于将锂/金属硫化物电池中的端子与结构电池外壳电隔离的直通密封件。 密封件具有间隔开的上部和下部绝缘体环，其紧密配合在端子和环形布置的直立壁之间，而绝缘体的外侧还限定在直立的壁和端子之间。 上绝缘体环和相应的直立壁和端子的相邻表面是圆锥形的，在轴向方向上远离电池内部，并且密封环位于每对相邻表面之间。 这些部件的尺寸使得在上绝缘体环向下绝缘体环适当移动时，粉末状绝缘体和密封环均被高度压缩。 这使得粉末绝缘体紧密结合，从而形成相同的高度不透水性，此外将密封环熔合到相邻表面之间和之间。 上绝缘环和下绝缘体环可以由氧化铍和/或氧化铝形成，粉状绝缘体可以由氮化硼形成，并且密封环可以由铝形成。
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公开(公告)号：US4357398A
公开(公告)日：1982-11-02
申请号：US240673
申请日：1981-03-05
申请人： Paul A. Nelson , Hiroshi Shimotake
发明人： Paul A. Nelson , Hiroshi Shimotake
摘要： A secondary, high temperature electrochemical cell especially adapted for lithium alloy negative electrodes, transition metal chalcogenide positive electrodes and alkali metal halide or alkaline earth metal halide electrolyte is disclosed. The cell is held within an elongated cylindrical container in which one of the active materials is filled around the outside surfaces of a plurality of perforate tubular current collectors along the length of the container. Each of the current collector tubes contain a concentric tubular layer of electrically insulative ceramic as an interelectrode separator. The active material of opposite polarity in elongated pin shape is positioned longitudinally within the separator layer. A second electrically conductive tube with perforate walls can be swagged or otherwise bonded to the outer surface of the pin as a current collector and the electrically insulative ceramic layer can be coated or otherwise layered onto the outer surface of this second current collector. Alternatively, the central pin electrode can include an axial core as a current collector.
摘要翻译： 公开了特别适用于锂合金负极，过渡金属硫属元素正极和碱金属卤化物或碱土金属卤化物电解质的次级高温电化学电池。 电池被保持在细长的圆柱形容器中，其中活性材料中的一种沿着容器的长度填充在多个穿孔管状集电器的外表面周围。 每个集电管包含作为电极间隔离物的电绝缘陶瓷的同心管状层。 细长销形状的相反极性的活性材料纵向定位在分离器层内。 具有穿孔壁的第二导电管可以作为集电器而被起泡或以其它方式结合到销的外表面，并且可以将电绝缘陶瓷层涂覆或以其它方式分层到该第二集电器的外表面上。 或者，中心销电极可以包括作为集电器的轴向芯。
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公开(公告)号：US4440837A
公开(公告)日：1984-04-03
申请号：US424112
申请日：1982-09-27
CPC分类号： H01M4/661 , H01M10/399 , H01M4/66
摘要： A current collector for the positive electrode of an electrochemical cell with a positive electrode including a sulfide. The cell also has a negative electrode and a molten salt electrolyte including halides of a metal selected from the alkali metals and the alkaline earth metals in contact with both the positive and negative electrodes. The current collector has a base metal of copper, silver, gold, aluminum or alloys thereof with a coating thereon of iron, nickel, chromium or alloys thereof. The current collector when subjected to cell voltage forms a sulfur-containing compound on the surface thereby substantially protecting the current collector from further attack by sulfur ions during cell operation. Both electroless and electrolytic processes may be used to deposit coatings.
摘要翻译： 一种具有包含硫化物的正极的电化学电池的正极集电体。 该电池还具有负极和熔融盐电解质，其包含选自碱金属和碱土金属的金属的卤化物与正极和负极接触。 集电器具有铜，银，金，铝或其合金的基体金属，其上具有铁，镍，铬或其合金的涂层。 当集电器经受电池电压时，在表面上形成含硫化合物，从而基本上保护集电器免受电池操作期间硫离子的进一步攻击。 无电解和电解方法都可用于沉积涂层。
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公开(公告)号：US4011373A
公开(公告)日：1977-03-08
申请号：US681649
申请日：1976-04-29
CPC分类号： H01M4/36 , H01M10/399
摘要： An uncharged positive-electrode composition contains particulate lithium sulfide, another alkali metal or alkaline earth metal compound other than sulfide, e.g., lithium carbide, and a transition metal powder. The composition along with a binder, such as electrolytic salt or a thermosetting resin is applied onto an electrically conductive substrate to form a plaque. The plaque is assembled as a positive electrode within an electrochemical cell opposite to a negative electrode containing a material such as aluminum or silicon for alloying with lithium. During charging, lithium alloy is formed within the negative electrode and transition metal sulfide such as iron sulfide is produced within the positive electrode. Excess negative electrode capacity over that from the transition metal sulfide is provided due to the electrochemical reaction of the other than sulfide alkali metal or alkaline earth metal compound.
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公开(公告)号：US4006034A
公开(公告)日：1977-02-01
申请号：US665746
申请日：1976-03-11
IPC分类号： H01M4/40 , H01M4/02 , H01M4/04 , H01M4/58 , H01M4/66 , H01M4/80 , H01M6/20 , H01M10/39 , H01M4/36
CPC分类号： H01M4/13 , H01M10/399 , H01M4/044 , H01M4/0461 , H01M4/581 , H01M4/5815 , H01M2004/027 , H01M2004/028 , H01M2300/0048 , H01M4/043 , H01M4/405 , H01M4/661 , H01M4/808 , Y10T29/49108 , Y10T29/49115
摘要： A secondary electrochemical cell is assembled in an uncharged state for the preparation of a lithium alloy-transition metal sulfide cell. The negative electrode includes a material such as aluminum or silicon for alloying with lithium as the cell is charged. The positive electrode is prepared by blending particulate lithium sulfide, transition metal powder and electrolytic salt in solid phase. The mixture is simultaneously heated to a temperature in excess of the melting point of the electrolyte and pressed onto an electrically conductive substrate to form a plaque. The plaque is assembled as a positive electrode within the cell. During the first charge cycle lithium alloy is formed within the negative electrode and transition metal sulfide such as iron sulfide is produced within the positive electrode.
摘要翻译： 二次电化学电池组装在不带电状态，用于制备锂合金 - 过渡金属硫化物电池。 负极包括诸如铝或硅的材料，用于在电池充电时与锂合金化。 正极通过将颗粒状硫化锂，过渡金属粉末和电解质盐混合固相制备。 同时将混合物加热至超过电解质熔点的温度，并压在导电基材上形成一个斑块。 斑块在细胞内作为正极组装。 在第一充电循环期间，在负极内形成锂合金，在正极内产生硫化铁等过渡金属硫化物。
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公开(公告)号：US4398968A
公开(公告)日：1983-08-16
申请号：US297310
申请日：1981-08-28
申请人： Koichiro Koyama , Hiroshi Shimotake
发明人： Koichiro Koyama , Hiroshi Shimotake
摘要： A method is presented for preparing a boride layer on a transition metal substrate for use in corrosive environments or as a harden surface in machine applications. This method is particularly useful in treating current collectors for use within a high temperature and corrosive electrochemical cell environment. A melt of a alkali metal boride tetrafluoride salt including such as KF to lower its melting point is prepared including a dissolved boron containing material, for instance NiB, MnB.sub.2, or CrB.sub.2. A transition metal to be coated is immersed in the melt at a temperature of no more than 700.degree. C. and a surface boride layer of that transition metal is formed within a period of about 24 hours on the substrate surface.
摘要翻译： 提出了一种在过渡金属基材上制备用于腐蚀环境中的硼化物层或在机器应用中作为硬化表面的方法。 该方法特别可用于处理在高温和腐蚀性电化学电池环境中使用的集电器。 制备包括诸如KF的碱金属硼化物四氟化物盐以降低其熔点的熔体，其包括溶解的含硼材料，例如NiB，MnB 2或CrB 2。 将待涂覆的过渡金属在不超过700℃的温度下浸入熔体中，并且在基板表面上在约24小时内形成该过渡金属的表面硼化物层。
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公开(公告)号：US4172926A
公开(公告)日：1979-10-30
申请号：US920414
申请日：1978-06-29
CPC分类号： H01M10/399 , Y10T29/49108
摘要： A method of preparing an electrochemical cell is disclosed which permits the assembly to be accomplished in air. The cell includes a metal sulfide as the positive electrode reactant, lithium alloy as the negative electrode reactant and an alkali metal, molten salt electrolyte. Positive electrode reactant is introduced as Li.sub.2 FeS.sub.2, a single-phase compound produced by the reaction of Li.sub.2 S and FeS. The use of this compound permits introduction of lithium in an oxidized form. Additional lithium can be introduced in the negative electrode structure enclosed within an aluminum foil envelope between layers of porous aluminum. Molten salt electrolyte is added after assembly and evacuation of the cell by including an interelectrode separator that has been prewet with an organic solution of KCl.
摘要翻译： 公开了制备电化学电池的方法，其允许在空气中完成组装。 电池包括金属硫化物作为正极反应物，锂合金作为负极反应物和碱金属，熔融盐电解质。 引入正极反应物作为Li 2 FeS 2，其是通过Li 2 S和FeS的反应制备的单相化合物。 使用该化合物可以引入氧化形式的锂。 另外的锂可以被引入封闭在多孔铝层之间的铝箔封套内的负极结构中。 通过包括已经用KCl的有机溶液预润湿的电极间隔离器，在电池组装和抽真空之后加入熔融盐电解质。
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公开(公告)号：US4029860A
公开(公告)日：1977-06-14
申请号：US657525
申请日：1976-02-12
CPC分类号： H01M4/70 , H01M10/399
摘要： Electrodes for secondary electrochemical cells are provided with compartments for containing particles of the electrode reactant. The compartments are defined by partitions that are generally impenetrable to the particles of reactant and, in some instances, to the liquid electrolyte used in the cell. During cycling of the cell, reactant material initially loaded into a particular compartment is prevented from migrating and concentrating within the lower portion of the electrode or those portions of the electrode that exhibit reduced electrical resistance.
摘要翻译： 用于二次电化学电池的电极设置有用于容纳电极反应物颗粒的隔室。 隔室由通常对反应物颗粒不透气的隔板限定，并且在某些情况下由电池中使用的液体电解质限定。 在电池循环期间，防止最初加载到特定隔室中的反应物材料迁移并集中在电极的下部或电极的表现出降低的电阻的部分。
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