Battery operated device, in particular implantable medical-electronic device
Battery-operated device, having an electrically operated functional unit and an electrochemical voltage source, which are housed together in an essentially gas-tight device housing, the electrochemical voltage source having an electrolyte based on an ionic liquid and a coating-free plastic battery housing.
1. A battery-operated device ( 11 ), having
an electrically operated functional unit ( 12 ) and an electrochemical voltage source ( 10 ), which are housed together in an essentially gas-tight device housing ( 14 ); and,
wherein the electrochemical voltage source has
an electrode comprising 91% manganese oxide, 7% expanded graphite and 2% PTFE powder,
an electrolyte based on an ionic liquid comprising lithium perchlorate in triethylsulfonium bis(trifluoromethylsulfonyl)imide wherein said electrolyte is free of solvents,
a coating-free plastic battery housing ( 8 ) comprising polyethylene or polycarbonate that is configured to prevent outgassing from the coating-free plastic battery housing at operating temperature.
2. The device according to claim 1 , wherein said battery-operated device is an implantable medical-electronic device, a cardiac pacemaker, defibrillator, neurostimulator, insulin or medication pump having a gas-tight welded or sealed metal device housing.