IMPERMEABLE SEALING FOR AIR-TIGHT ENERGY CONVERSION DEVICES
Original Publication Date: 1993-Oct-01
Included in the Prior Art Database: 2002-Feb-21
Methods for sealing energy conversion cells such as batteries and capacitors have proved critical to their consumer use, particularly for portable batter- ies. Liquid electrolytes typically require stringent sealing (with provisions for venting) to prevent evap- oration and leakage that might endanger consum- ers. If the cell operates at high voltages or employs neat alkali metals, the sealant must not only retain the solvent-salt solution but also exclude moisture, since the presence of water in the cell would result in self-discharge and hydrogen generation through electrolysis of the water.