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

    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。

    Cell with safe venting electrolyte
    4.
    发明授权
    Cell with safe venting electrolyte 失效
    电池具有安全通风电解液

    公开(公告)号:US4482613A

    公开(公告)日:1984-11-13

    申请号:US466817

    申请日:1983-02-16

    IPC分类号: H01M2/12 H01M6/16 H01M6/14

    摘要: The safety of a non-pressurized electrochemical cell such as a Li/MnO.sub.2 cell, having a safety pressure vent and an organic electrolyte solvent is enhanced by, in conjunction with said vent, providing said organic electrolyte solvent with at least 80% by volume of a volatile component, such as dimethoxyethane, having a boiling point between 30.degree. C. to 130.degree. C. Upon cell venting, under abuse conditions, the cell is thereby rapidly evacuated and safely rendered inoperable under further abuse conditions.

    摘要翻译: 具有安全压力通气孔和有机电解质溶剂的非加压电化学电池例如Li / MnO 2电池的安全性通过与所述通气口相结合来提高所述有机电解质溶剂的至少80体积% 挥发性成分,例如二甲氧基乙烷,沸点在30℃至130℃之间。细胞排空后,在滥用条件下,细胞由此迅速排出,并在进一步的滥用条件下安全地使其不能使用。

    Zinc/air cell
    5.
    发明授权
    Zinc/air cell 有权
    锌/空气池

    公开(公告)号:US06548201B1

    公开(公告)日:2003-04-15

    申请号:US09638993

    申请日:2000-08-15

    IPC分类号: H01M400

    摘要: A process for heat treating the metal sheeting forming the anode casing of a zinc/air depolarized cell before anode material comprising zinc is inserted into the anode casing. The anode casing has a layer of copper on its inside surface. The process comprises heat treating the metal sheeting forming the anode casing by passing a gas at a temperature between about 200° C. and 700° C., preferably between about 300° C. and 600° C. in contact therewith to form a heat treated sheeting and then cooling said heat treated sheeting to ambient temperature. The anode casing is stored away from atmospheric air until anode active material is inserted therein during cell assembly. The heat treating process significantly reduces gassing during cell discharge and storage. The cell's capacity and performance is improved when the cell's anode comprises particulate zinc (or zinc alloy) plated with indium, preferably between about 200 and 600 ppm indium. The need to add mercury to the anode material is reduced and can be eliminated.

    摘要翻译: 在将包含锌的负极材料插入阳极壳体之前,将形成锌/空气去极化电池的阳极壳体的金属片材热处理的方法。 阳极套管的内表面有一层铜层。 该方法包括通过在约200℃至700℃之间的温度下通过气体,优选在约300℃至600℃之间的温度下接触形成阳极套管来对金属片进行热处理,以形成热量 然后将所述经热处理的片材冷却至环境温度。 将阳极套管远离大气保存,直到阳极活性材料在电池组装过程中插入其中。 热处理过程在电池放电和储存期间显着降低气体。 当电池的阳极包含镀有铟的颗粒状锌(或锌合金)时,电池的容量和性能得到改善,优选介于约200和600ppm铟之间。 将汞添加到阳极材料的需要减少并且可以被消除。

    Lithiated manganese dioxide
    6.
    发明授权
    Lithiated manganese dioxide 有权
    锂二氧化锰

    公开(公告)号:US06190800B1

    公开(公告)日:2001-02-20

    申请号:US09496233

    申请日:2000-02-01

    IPC分类号: H01M450

    摘要: A lithiated manganese dioxide for use in primary lithium electrochemical cells. The lithiated manganese dioxide is prepared by stepwise treatment with a liquid source of lithium cations that can include an aqueous solution of a lithium base or a low melting point lithium salt resulting in formation of a lithiated manganese dioxide product. Lithium cations in the lithium base or molten lithium salt can be ion-exchanged with hydrogen ions in the manganese dioxide crystal lattice and additional lithium ions reductively inserted into the lattice during subsequent heat-treatment to form the lithiated manganese dioxide product LiyMnO2−&dgr;. The primary lithium cell utilizing the lithiated manganese dioxide product as active cathode material exhibits increased operating voltage and enhanced high rate, low temperature, and pulse discharge performance compared with untreated manganese dioxide.

    摘要翻译: 用于一次锂电化学电池的锂化二氧化锰。 锂化二氧化锰通过用锂阳离子的液体源逐步处理制备,所述锂阳离子可以包括锂碱或低熔点锂盐的水溶液,从而形成锂化二氧化锰产物。 在锂基或熔融锂盐中的锂阳离子可以在二氧化锰晶格中与氢离子进行离子交换,并且在随后的热处理期间还原性地插入晶格中的另外的锂离子形成锂化二氧化锰产物Li y MnO 3。 与未处理的二氧化锰相比,利用锂化二氧化锰产品作为活性阴极材料的一次锂电池表现出增加的工作电压和增强的高速率,低温和脉冲放电性能。

    Non-aqueous electrolyte cell
    7.
    发明授权
    Non-aqueous electrolyte cell 失效
    非水电解质电池

    公开(公告)号:US4279972A

    公开(公告)日:1981-07-21

    申请号:US070198

    申请日:1979-08-27

    申请人: Peter R. Moses

    发明人: Peter R. Moses

    CPC分类号: H01M6/16 H01M4/502

    摘要: A non-aqueous electrolyte cell particularly one containing a beta manganese dioxide cathode wherein the cathode is normally rigorously heat treated to drive off contained water. The heat treatment is substantially reduced or eliminated (allowing up to 2% water by weight of the cathode to remain in the cell) by utilizing as an electrolyte salt in the cell, a salt which reacts with water to only form a weak oxidizing agent which in turn does not react with the electrolyte solvent to form a gaseous product. Alternatively, an electrolyte solvent is initially utilized in the cell, which solvent does not react with strong oxidizing agents to form a gaseous product.

    摘要翻译: 特别是含有β二氧化锰阴极的非水电解质电池,其中阴极通常被严格热处理以驱除含水。 通过利用电池中的电解质盐,与水反应形成弱氧化剂的盐,可以大大降低或消除热处理(允许阴极重量达到2%的水分留在电池中) 而不与电解质溶剂反应形成气态产物。 或者,最初在电池中使用电解质溶剂,该溶剂不与强氧化剂反应以形成气态产物。

    Zinc/air cell
    8.
    发明授权
    Zinc/air cell 有权
    锌/空气池

    公开(公告)号:US06551742B1

    公开(公告)日:2003-04-22

    申请号:US09711470

    申请日:2000-11-13

    IPC分类号: H01M600

    摘要: A fluorosurfactant, preferably an anionic fluorosurfactant, can be added to the anode mixture of a zinc/air cell. A desirable surfactant is an anionic fluoroaliphaticcarboxylate. The addition of the surfactant reduces gassing and improves cell performance. The anode casing can also be treated with the surfactant solution prior to inserting the anode mixture therein. The anode casing of a zinc/air depolarized cell can also be heat treated after the casing has been formed but before anode material comprising zinc is inserted therein. The anode casing has a layer of copper on its inside surface. The process comprises heat treating the anode casing by passing a gas at a temperature between about 200° C. and 700° C., preferably between about 300° C. and 600° C. in contact therewith to form a heat treated anode casing and then cooling said heat treated anode casing to ambient temperature. The heat treated anode casing is stored away from atmospheric air until anode active material is inserted therein during cell assembly. The heat treating process significantly reduces gassing during cell discharge and storage and eliminates the need to add mercury to the anode material.

    摘要翻译: 可以向锌/空气电池的阳极混合物中加入含氟表面活性剂,优选阴离子含氟表面活性剂。 理想的表面活性剂是阴离子氟代脂族羧酸盐。 表面活性剂的添加剂减少气体并改善电池性能。 阳极套管也可以在将阳极混合物插入其中之前用表面活性剂溶液处理。 锌/空气去极化电池的阳极壳体也可以在壳体形成之后,但是在包含锌的阳极材料插入其中之前进行热处理。 阳极套管的内表面有一层铜层。 该方法包括通过使温度在约200℃和700℃之间的温度下通过气体,优选在约300℃和600℃之间的温度下接触来对阳极套管进行热处理,以形成热处理的阳极套管, 然后将所述经热处理的阳极套管冷却至环境温度。 热处理的阳极套管远离大气,直到阳极活性材料插入其中,在电池组装过程中。 热处理工艺在电池放电和储存过程中显着降低气体,并且不需要向阳极材料添加汞。