The conductive properties of butadiene polymer (BR) and styrene-butadiene polymer (SBR) with sodium chlorate (VII) can be used at industrial scale as miniature batteries. Polymer material modified with sodium chlorate (VII) was used to produce sodium polybutadiene and poly(styrene-butadiene) batteries. The conductivity of such polymer composites for temperatures ranging 243–313K is at a similar level and amounts to 10−4 Scm−1 for butadiene polymer and to 10−3 Scm−1 for styrene-butadiene polymer at 100kHz. The conductive battery made of butadiene polymer shows a open circuit voltage of 0.9V with a short-circuit current of 40mA, whereas that made of styrene-butadiene polymer shows a open circuit voltage of 1.2V with a short-circuit current of 38mA. The lightness, commonly found material (sodium), and environment-friendly energy are main advantages of sodium polybutadiene and poly(styrene-butadiene) batteries.