Li-SOCL₂ Battery:

Lithium Thionyl Chloride(Li-SOCl₂) Battery has high energy density, and its nominal voltage is 3.6V. Bobbin structure is best suited for low current discharge and spiral structure is best suited for high current discharge.

Principle and Reactions:

The positive active material of Li-SOCl₂ batteries is liquid Thionyl Chloride (SOCl₂) while negative active material is Lithium (Li).The reactions of the batteries are shown below.

Positive reaction   2SOCl₂ + 4Li+ + 4e- →4LiCl + S + SO₂

Negative reaction   Li → Li+ + e-

Total reaction   2SOCl₂+4Li → 4LiCl+ S + SO₂