The Lithium / Thionyl Chloride Batteries Phthalocyanine Complexes Synthesis And Catalytic Properties Of Catalysts

The phthalocyanine complexes and a series of transition metal complexes with the Schiff Base have been synthesized and structurally characterized by IR,TGA, X-Ray and elemental analysis.The catalysis for reduction of thionyl chloride is studied by means of constant resistance discharge.Catalytic effect of these complexes to the lithium-thionyl chloride battery is evaluated by determining the percentage of Li/SOCl₂ capacity increment under constant resistance.Some complexes,such as MpcTa(1a-1g),MPcTn(2a-2g), M₂(PTp)₂(3a-3g),M₂(PTpz)₂(4a-4g),M₂(PcTn)₂(5a-5g),MNc(6a-6g),MPcTb(7a-7g) and[Mn(Ⅱ)HLCl(H₂O)]CH₃OH 1 and[Co(Ⅱ)HLCl(H₂O)]3 show catalytic activities for the reduction of thionyl chloride.The catalytic effect of different substituents and different centre ions on lithium-thionyl chloride battery was presented and discussed.The catalytic effect of different centre ions on lithium-thionyl chloride battery Was different.When centre ions are Mn(Ⅱ),Fe(Ⅱ) and Co(Ⅱ),the catalytic effect is the most effective,because the oxidation-reducation process occurs at the centre metal ions.When centre ions are Fe(Ⅲ),Ni(Ⅱ),Cu(Ⅱ) and Zn(Ⅱ),the catalytic effect is poor,because the oxidation-reducation process occurs at phthalocyanine cycle.The different series of phthalocyanine complexes have donor electron substituents,it enlarges the conjugated system,which is beneficial to catalysis.