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    • 61. 发明授权
    • Sealed cylindrical electrochemical cell
    • 密封圆柱形电化学细胞
    • US3627586A
    • 1971-12-14
    • US3627586D
    • 1969-12-11
    • ACCUMULATEURS FIXES
    • JAMMET JEAN FIRMIN
    • H01M6/08H01M21/06
    • H01M6/08
    • Sealed electrochemical cells, preferably of cylindrical shape comprising a rodlike positive electrode surrounded by a depolarizing mix and separator enclosed within an overall cylindrically shaped cuplike negative electrode formed from sheet metal which is mechanically folded and bowed to provide a bottom and cylindrically shaped side walls having at least one longitudinal slot. A synthetic plastic casing is molded in situ about the negative electrode. After assembly of the positive electrode, depolarizer mix and separator and other required cell components with this negative electrode bearing said synthetic casing, an insulative closure member is mounted on the assembly to seal the contents of the casing surrounded negative electrode. The positive electrode projects through this cover and optionally a metal cap covers the protruding end of the positive electrode. The bottom of the negative electrode is either directly left uncovered by the casing to constitute the negative terminal of the generator. In the alternative, a metallic cup in electrical contact with said bottom is left partially uncovered by the casing to constitute the negative terminal. This cup may be ribbed, if desired.