Alkaline Metal Secondary Batteries Using Poly(2,5-pyridinediyl) as an Active Electrode Material

Poly(2,5-pyridinediyl) film serves as a good active material for positive electrodes of rechargeable polymer batteries, alkaline metal/MX(M=Na, Li; X=PF 6 , ClO 4 )/polymer batteries. Use of sodium as the alkaline metal affords an open circuit voltage (OCV) of 2.54 V and the battery shows almost 100% current efficiency. Use of lithium gives an OCV of 2.65 V.