Rechargeable Batteries Based on Intercalation in Graphite

Storage batteries based on intercalation of lithium and bromine in graphite have been proposed. Like other storage batteries, these could be recharged electrically. Optionally, these batteries could also be recharged thermally at relatively low temperatures — by use of solar or waste heat, for example. In comparison with thermocouples and thermionic devices, the proposed batteries would generate much greater potentials (about 4 V per cell versus millivolts per thermocouple or thermionic device) and would convert heat to electricity with greater efficiencies.