Extensive research into new materials and new technologies for energy storage and conversion has been conducted in the past few decades. Along with the development of new energy materials, various advanced polymeric materials with excellent performance and well-designed structures have been designed and adopted in lithium batteries, fuel cells, solar cells, super capacitors, piezoelectric materials and similar, leading to a significant improvement in the performance of devices, cyclic stability and durability, as well as improvements to other physiochemical properties. The recent advances in polymeric materials for use in energy devices have introduced new technologies for studying the mechanisms underlying their enhanced performances; these advancements will aid the development of new energy storage and conversion technologies.

In this Special Issue, we invite investigators to contribute original research articles as well as review articles that will stimulate the continuing efforts to design ingenious polymeric structures, prepare novel devices and also understand the mechanisms of the process of energy storage and conversion. We are also interested in articles that explore direct applications of polymeric materials.

Potential topics include but are not limited to the following:

• Polymers for lithium batteries including Li-ion, Li-S and Li-air batteries
• Polymeric materials for other secondary batteries including Na-ion, K-ion, Al-air, Zn-air, and Mg-air batteries.
• Polymers used in fuel cells (proton exchange membranes), solar cells, super capacitors and piezoelectric materials
• New carbon and nanocomposite materials from functional polymers