Lithium-sulfur dioxide (Li-SO2)

Lithium-sulfur dioxide cells have a metallic lithium anode (the lightest of all the metals) and a liquid cathode comprising a porous carbon current collector filled with a sulphur dioxide (SO2) solution. They deliver a voltage of 2.8 V and are cylindrical in shape, in ½ AA to double-D format, with spiral electrodes.

Lithium-sulfur dioxide cells have a high energy density (250 Wh/kg) and a good capability for delivering repeated bursts of high power (up to 400 W/kg). This cabability derives from the spiral construction and is utilised in most of the applications addressed by this type of cell.

This kind of cell is mainly used in defence applications, though civil applications also abound.

LO/G cell ranges

Non rechargeable battery

Main applications

  • military radiocommunication
  • sonobuoys and other underwater applications
  • emergency location transmitters beacon (ELTs, EPIRBs)
  • professional electronics
  • cardiac defibrillators