Vibration resistant electrochemical cell

H - Electricity – 01 – M

Patent

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319/112, 319/39

H01M 10/12 (2006.01) H01M 2/04 (2006.01) H01M 2/06 (2006.01) H01M 2/28 (2006.01)

Patent

CA 1147022

ABSTRACT OF THE DISCLOSURE A sealed electrochemical cell has an open-mouthed container con- taining opposite polarity electrode plates, interleaved separators and electro- lyte. A molded lid is affixed to and seals the mouth of the container. The lid has on its underside at least one seat with a through bore therein. A post connector is received within the seat and makes a through-the-lid con- nection to current collector tabs attached to the electrode plates by means of a strap which projects laterally from the post externally of the seat, the strap being welded to the current collector tabs. the lid has at least one protuberant: support portion on its underside adjacent the seat and positioned to provide a mechanical support in close proximity to the strap. the support provides great resistance to rupture of the strap which is liable to occur under prolonged vibration of the cell.

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