Abstract: The invention provides an electrochemical cell having a housing in the form of a canister having a floor and at least one side wall, and an open end opposite the floor, the open end being closed off by a closure and the closure having a periphery connected to the canister at its open end. The cell has a pair of electrodes respectively provided, at the open end of the housing, with electrode terminals. One of said terminals is an outer terminal electronically continuous with the housing at the periphery of the closure, the housing forming a current collector for one of the electrodes. The other terminal is a central terminal electronically continuous with a separate current collector for the other electrode, which separate current collector projects longitudinally inwardly from the cell closure, radially inwardly of the periphery of the closure, being electronically insulated from the housing.