(JP7320711-A)      The cell includes a group of electrodes (2) comprising positive and negative electrodes allowing absorption and release of a light metal and separators accommodated in a closed-end cell-armouring can (1), together with a non-aqueous electrolyte. An opening of the armouring can is closed by an insulating gasket (5) positioned around the inner periphery of the can opening, and a closed lid (9) fitted in and supported by the gasket and simultaneously serving as a positive or negative terminal. The closing lid comprises an explosion proof valve (6) capable of deforming towards the direction opposite to the group of electrodes in response to an increase in the internal pressure of the cell.    A terminal cap (9) provided with vent holes (9a) is arranged at the side of the explosion-proof valve opposed to the group of electrodes. A non-reverse switch (7) is positioned between the explosion-proof valve and the terminal cap and serves to shut-off the electrical connection between the terminal cap and the positive or negative electrode when the temperature of the cell is raised or the pressure in the cell is increased. The current-cut-off effect can be further improved through the use of the positive electrode active material in combination with sodium and/or potassium and/or rubidium and/or magnesium and/or calcium and/or barium salts of carbonic acid.    USE -   Cell for use in motor vehicles, word processors, portable telephones, pagers, portable facsimiles, copiers, printers, video movies, liquid crystal televisions, handy cleaners, portable CD's, electric shavers, motor-driven tools etc.    (JP8102331-A)      The cell includes a group of electrodes comprising positive and negative electrodes allowing absorption and release of a light metal and separators accommodated in a closed-end cell-armouring can, together with a non-aqueous electrolyte. An opening of the armouring can is closed by an insulating gasket positioned around the inner periphery of the can opening, and a closed lid fitted in and supported by the gasket and simultaneously serving as a positive or negative terminal. The closing lid comprises an explosion proof valve capable of deforming towards the direction opposite to the group of electrodes in response to an increase in the internal pressure of the cell.    A terminal cap provided with vent holes is arranged at the side of the explosion-proof valve opposed to the group of electrodes. A non-reverse switch is positioned between the explosion-proof valve and the terminal cap and serves to shut-off the electrical connection between the terminal cap and the positive or negative electrode when the temperature of the cell is raised or the pressure in the cell is increased. The current-cut-off effect can be further improved through the use of the positive electrode active material in combination with sodium and/or potassium and/or rubidium and/or magnesium and/or calcium and/or barium salts of carbonic acid.    USE -   Cell for use in motor vehicles, word processors, portable telephones, pagers, portable facsimiles, copiers, printers, video movies, liquid crystal televisions, handy cleaners, portable CD's, electric shavers, motor-driven tools etc.    (EP689255-B1)      The cell includes a group of electrodes comprising positive and negative electrodes allowing absorption and release of a light metal and separators accommodated in a closed-end cell-armouring can, together with a non-aqueous electrolyte. An opening of the armouring can is closed by an insulating gasket positioned around the inner periphery of the can opening, and a closed lid fitted in and supported by the gasket and simultaneously serving as a positive or negative terminal. The closing lid comprises an explosion proof valve capable of deforming towards the direction opposite to the group of electrodes in response to an increase in the internal pressure of the cell.    A terminal cap provided with vent holes is arranged at the side of the explosion-proof valve opposed to the group of electrodes. A non-reverse switch is positioned between the explosion-proof valve and the terminal cap and serves to shut-off the electrical connection between the terminal cap and the positive or negative electrode when the temperature of the cell is raised or the pressure in the cell is increased. The current-cut-off effect can be further improved through the use of the positive electrode active material in combination with sodium and/or potassium and/or rubidium and/or magnesium and/or calcium and/or barium salts of carbonic acid.    USE -   Cell for use in motor vehicles, word processors, portable telephones, pagers, portable facsimiles, copiers, printers, video movies, liquid crystal televisions, handy cleaners, portable CD's, electric shavers, motor-driven tools etc.