| abstract |
An electrochemical device such as a battery or power supply provides improved performance under harsh or extreme conditions. Such an electrochemical device for use at high temperature conditions may include at least one cathode, a lithium-based anode, a separator, and an ionic liquid electrolyte. Such devices may also include a current collector and housing that are electrochemically inert to the other components of the device. This electrochemical device can be operated at temperatures ranging from 0°C to 180°C, 200°C, 220°C, 240°C and 260°C. |