Non-reversible disconnection or break and make device for electrical appliances

A disconnection device for electrically disconnecting a first electrical appliance by disconnecting at least a first connection between a plurality of electrodes and for making a second connection, the device comprising an electrically isolating holder between electrodes of the plurality of electrodes, the holder comprising an electrically conductive substance disconnectable from the plurality of electrodes to thereby break the at least one first connection under gravity forces,

• wherein the electrically conductive substance is adapted for making electrical contact with the plurality of electrodes in one part of the electrically isolating holder to make the at least one first connection when the first electrical appliance is connected and to make electrical contact with at least one second connection in another part of the electrically isolating holder when the at least one first connection is disconnected, the second connection shorting out the first electrical appliance.

A method for disconnecting a first electrical appliance from an electrode pair, the method comprising:

• activation of a heating element for producing heat
• releasing a liquid conductive material or melting of part of an electrically conductive substance thermally influenced by the heat from the heating element resulting in breaking of a first connection between a first and/or second electrode of the first electrode pair and disconnecting the first electrical appliance;
• displacement of the molten part of the electrically conductive substance or the liquid conductive material from one part of the holder to another part of the holder by gravity forces thereby establishing electrical contact with third and/or fourth electrode of a second electrode pair making a second connection such that when the at least one first connection is disconnected, the second connection shorts out the first electrical appliance.

A battery having a plurality of battery cells connected in series, comprising an electrically isolating holder between electrodes of a plurality of electrodes, the holder comprising an electrically conductive substance disconnectable from the plurality of electrodes to thereby break at least one first connection under gravity forces,

• wherein the electrically conductive substance is adapted for making electrical contact with the plurality of electrodes in one part of the electrically isolating holder to make the at least one first connection when the battery cells are connected in series and to make electrical contact with at least one second connection in another part of the electrically isolating holder when the at least one first connection is disconnected, the second connection shorting out a battery cell.